CN111206457A - Waterproof stain-resistant corrugated carton and preparation process thereof - Google Patents
Waterproof stain-resistant corrugated carton and preparation process thereof Download PDFInfo
- Publication number
- CN111206457A CN111206457A CN202010043506.6A CN202010043506A CN111206457A CN 111206457 A CN111206457 A CN 111206457A CN 202010043506 A CN202010043506 A CN 202010043506A CN 111206457 A CN111206457 A CN 111206457A
- Authority
- CN
- China
- Prior art keywords
- paper
- waterproof
- resistant
- corrugated
- stain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 36
- 239000000839 emulsion Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000008367 deionised water Substances 0.000 claims abstract description 16
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 16
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 13
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003999 initiator Substances 0.000 claims abstract description 12
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 31
- 239000000243 solution Substances 0.000 claims description 30
- 230000000977 initiatory effect Effects 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000010030 laminating Methods 0.000 claims description 10
- 239000000178 monomer Substances 0.000 claims description 10
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 claims description 9
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 8
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 8
- 239000011976 maleic acid Substances 0.000 claims description 8
- OZSVSBMHEZAZTL-SANMLTNESA-N octadecyl (2s)-2-amino-3-(4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)[C@@H](N)CC1=CC=C(O)C=C1 OZSVSBMHEZAZTL-SANMLTNESA-N 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 8
- MZWXWSVCNSPBLH-UHFFFAOYSA-N 3-(3-aminopropyl-methoxy-methylsilyl)oxypropan-1-amine Chemical compound NCCC[Si](C)(OC)OCCCN MZWXWSVCNSPBLH-UHFFFAOYSA-N 0.000 claims description 7
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000376 reactant Substances 0.000 claims description 6
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 5
- 238000003490 calendering Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 5
- 238000007792 addition Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 4
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 4
- -1 polyoxypropylene Polymers 0.000 claims description 4
- 238000004078 waterproofing Methods 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 238000004821 distillation Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 238000007720 emulsion polymerization reaction Methods 0.000 claims description 2
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 2
- 229920001451 polypropylene glycol Polymers 0.000 claims description 2
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 11
- 239000000123 paper Substances 0.000 description 90
- 230000000052 comparative effect Effects 0.000 description 6
- 238000004806 packaging method and process Methods 0.000 description 6
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 4
- 239000005871 repellent Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 239000011087 paperboard Substances 0.000 description 3
- 230000002940 repellent Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000006173 Good's buffer Substances 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000000843 anti-fungal effect Effects 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- IQDGSYLLQPDQDV-UHFFFAOYSA-N dimethylazanium;chloride Chemical compound Cl.CNC IQDGSYLLQPDQDV-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 125000000879 imine group Chemical group 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000005956 quaternization reaction Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- CZDYPVPMEAXLPK-UHFFFAOYSA-N tetramethylsilane Chemical compound C[Si](C)(C)C CZDYPVPMEAXLPK-UHFFFAOYSA-N 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
- B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
- B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
- B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
- B31F1/2804—Methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/08—Corrugated paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
- D21H27/40—Multi-ply at least one of the sheets being non-planar, e.g. crêped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/26—All layers being made of paper or paperboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/12—Coating on the layer surface on paper layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/73—Hydrophobic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/40—Closed containers
- B32B2439/62—Boxes, cartons, cases
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
Abstract
The invention discloses a waterproof stain-resistant corrugated case and a preparation process thereof, wherein the corrugated case is formed by bonding surface paper, lining paper, core paper and corrugated paper processed into corrugated flutes, the surface paper, the lining paper, the core paper and the corrugated paper processed into the corrugated flutes are coated with a layer of waterproof stain-resistant emulsion before bonding to form a layer of waterproof stain-resistant film, and the waterproof stain-resistant emulsion comprises the following raw materials in percentage by mass: 8-12% of waterproof stain-resistant agent, 25-30% of methyl acrylate, 5-8% of methyl methacrylate, 10-15% of ethyl acrylate, 3-5% of initiator, 0.5-1.2% of emulsifier and the balance of deionized water; then the waterproof antibacterial stain-resistant paper is obtained after bonding, pressing, cutting and binding, and has good waterproof antibacterial stain resistance and strong practicability.
Description
Technical Field
The invention belongs to the technical field of packaging, and particularly relates to a waterproof stain-resistant corrugated carton and a preparation process thereof.
Background
The corrugated case is used as an indispensable packaging container in production and life, and is widely applied to transportation and packaging in various industries such as food, household appliances, textile, food industry, daily chemicals and the like. With the increase of the consumption level of people, the demand of the carton is increased, and higher requirements are also put on the appearance effect and the functionality of the carton.
The corrugated board is a paper composite board, is a non-metal sandwich material with visco-elastic-plasticity, is formed by bonding corrugated medium paper and inner and outer surface paper, is used for manufacturing various corrugated cases, paper trays, paper liners, paper corner protectors, showing stands, paper furniture, paper toys, light building material products and the like, and has diversified trends and wide industrial application prospects. The basic structure of corrugated board is illustrated by a single corrugated board. The single corrugated board, i.e. three-layer corrugated board, is made up by using face paper, liner paper and a layer of corrugated medium paper through a certain adhesive process. The corrugated case is a paper container made of corrugated boards, is an ideal packaging container, has the excellent characteristics of good buffer performance, portability, firmness, high strength, sufficient raw materials, low cost, convenience for automatic production, wide applicability, good printability, good environmental protection, recyclability and the like, and is always used for transport packaging and sale packaging for many years. Because the material of corrugated box leads to the corrugated box surface to absorb water very easily and the adhesion bacterium mould, and the corrugated box absorbs water the back of weing, and the bacterium mould breeds on corrugated box and produces a large amount of plaque and mouldy spot, and waterproof resistant dirty performance is relatively poor, and each performance descends by a wide margin, the phenomenon that can't use appears even, and easy being stained with the bacterium at the case that the contact becomes mould is unfavorable to healthy.
Disclosure of Invention
The invention aims to provide a waterproof stain-resistant corrugated carton and a preparation process thereof.
The purpose of the invention can be realized by the following technical scheme:
the waterproof stain-resistant corrugated case is formed by bonding surface paper, lining paper, core paper and corrugated paper processed into corrugated corrugations, wherein the surface paper, the lining paper, the core paper and the corrugated paper processed into the corrugated corrugations are coated with a layer of waterproof stain-resistant emulsion before bonding to form a layer of waterproof stain-resistant film, and the waterproof stain-resistant emulsion comprises the following raw materials in percentage by mass: 8-12% of waterproof stain-resistant agent, 25-30% of methyl acrylate, 5-8% of methyl methacrylate, 10-15% of ethyl acrylate, 3-5% of initiator, 0.5-1.2% of emulsifier and the balance of deionized water;
the preparation method of the waterproof stain-resistant emulsion comprises the following steps:
s1 preparation of waterproof stain-resistant agent
The first step is as follows: adding aminoethyl aminopropyl methyl dimethoxysilane, maleic acid and tyrosine octadecyl ester into a reaction bottle, heating to 70-75 ℃, keeping the temperature for reaction for 45-60min, precipitating a product by using an aqueous solution containing 60% of ethanol after the reaction is finished, drying in vacuum, recrystallizing in DMF, rinsing in acetone, and filtering to obtain the water-proofing agent with the structure of the formula A;
the second step is that: adding the waterproof agent prepared in the first step into a reaction bottle, heating to 70-75 ℃ while stirring, dropwise adding dimethyl sulfate, continuing to react for 3-4h after the addition is finished, removing redundant dimethyl sulfate by reduced pressure distillation after the reaction is stopped, repeatedly extracting with anhydrous ether until the viscosity of the product is unchanged, and performing vacuum drying for 10h at 45-50 ℃ to obtain the viscous waterproof stain-resistant agent with the structure of formula B;
the reaction formula is shown as follows:
s2 emulsion polymerization
(1) Adding initiator sodium persulfate into deionized water to be completely dissolved to prepare an initiating solution with the mass concentration of 10-15%;
(2) uniformly mixing the waterproof stain-resistant agent prepared in the step S1, methyl acrylate, methyl methacrylate and ethyl acrylate to obtain a monomer solution;
(3) adding deionized water, part of initiation solution and emulsifier into a reaction kettle, heating to 75 ℃, simultaneously dropwise adding monomer solution and the rest initiation solution, after dropwise adding, heating to 90 ℃, continuing to react for 3-4h, after the reaction is finished, naturally cooling to 35-40 ℃, adding a small amount of ammonia water to adjust the pH of the reactant, and uniformly stirring to obtain the waterproof stain-resistant emulsion.
Further, the mol ratio of the aminoethyl aminopropyl methyl dimethoxysilane to the maleic acid to the tyrosine octadecyl ester to the dimethyl sulfate is 1:1.1-1.3:1: 2-2.5.
Further, in step S1, the reaction of the first step is performed in a nitrogen atmosphere.
Further, the emulsifier is one of alkylphenol polyoxyethylene ether polyoxypropylene ether and ethyl phenylpropyl phenol polyoxyethylene ether.
Further, in step S2, the partial initiation solution is 30-40% by volume of the total initiation solution.
Further, in step S2, ammonia water adjusts the pH of the reactant to 7 to 7.8.
The preparation process of the waterproof stain-resistant corrugated case specifically comprises the following steps:
firstly, sequentially placing paper for corrugated cases on a placing rack respectively, and feeding the paper into a thermal tension roller for leveling and preheating, wherein the temperature of the thermal tension roller is 40-45 ℃;
adding the waterproof stain-resistant emulsion into a laminating machine, performing double-sided laminating on the flat and preheated paper for the corrugated case, and then pressing the paper in a calendering roller;
step three, coating adhesive on the pressed corrugated case paper for bonding;
and step four, cutting and binding the adhered paper for the corrugated case to obtain the waterproof stain-resistant corrugated case.
Further, the paper for the corrugated case is surface paper, lining paper, core paper and corrugated paper processed into corrugated paper.
The invention has the beneficial effects that:
the invention provides a waterproof stain-resistant corrugated case and a preparation process thereof, the corrugated case is formed by bonding surface paper, lining paper, core paper and corrugated paper processed into corrugated flutes, the surface paper, the lining paper, the core paper and the corrugated paper processed into the corrugated flute are coated with a layer of waterproof stain-resistant emulsion before bonding to form a layer of waterproof stain-resistant film, in the preparation of the waterproof stain-resistant agent, aminoethyl aminopropyl methyl dimethoxysilane, maleic acid and tyrosine octadecyl ester are used as raw materials, two carboxylic acids of the maleic acid are respectively condensed with amino on the aminoethyl aminopropyl methyl dimethoxysilane and amino on the tyrosine octadecyl ester to generate a waterproof agent A, and a silicone grease group introduced on the waterproof agent A forms a hydrophobic film on the surface of the corrugated case and the inner wall of a capillary hole to prevent capillary absorption of the capillary hole to water, so that the waterproof effect is fully exerted; in addition, hydrophobic fat long-chain octadecyl is introduced through the tyrosine octadecyl ester, so that the waterproof and moistureproof performances of the composition are further improved;
then the imine group on the waterproofing agent A and dimethyl sulfate are subjected to quaternization reaction to obtain the N-containing+The ionic quaternary ammonium salt waterproof stain-resistant agent B has good antibacterial and mildew-proof properties, and N is coated on the paperboard and on the waterproof stain-resistant agent B+Ions are alsoThe antibacterial and stain-resistant corrugated case can attract negative charges on the surface of the paper board fibers to form ionic bonds for finishing, so that the antibacterial and stain-resistant corrugated case can be maintained for a longer time;
the maleic acid is one of the starting materials for synthesizing the waterproof stain-resistant agent, double bonds are introduced into the waterproof stain-resistant agent, the active waterproof unit (organic silicon, fatty long-chain octadecyl) and the active antibacterial stain-resistant unit (quaternary ammonium salt) are connected in a chemical bond mode, and the waterproof stain-resistant agent can be polymerized with methyl acrylate, methyl methacrylate and ethyl acrylate under the action of an initiator to form emulsion with strong adhesion and adhesive force and is coated on the surface of a paperboard, so that the waterproof stain-resistant agent is more uniform in waterproof and stain-resistant components, the phenomenon that water cannot be prevented locally or mildew stains occur is avoided, more importantly, the waterproof stain-resistant agent is not easy to fall off, and the waterproof stain-resistant antibacterial long-term performance of the corrugated case is further ensured. A layer of waterproof stain-resistant emulsion is coated on the surface paper, the inner paper, the core paper and the corrugated paper processed into the corrugated paper before bonding, so that the corrugated paper box has waterproof stain-resistant performance from inside to outside, and the service durability of the corrugated paper box is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following examples, the preparation method of the waterproof stain resistant agent comprises the following steps:
the reaction formula is as follows
The first step is as follows: adding 1mol of aminoethyl aminopropyl methyl dimethoxysilane, 1.3mol of maleic acid and 1mol of tyrosine octadecyl ester into a reaction bottle, introducing nitrogen, heating to 75 ℃, keeping the temperature for reaction for 60min, precipitating a product by using an aqueous solution containing 60% of ethanol after the reaction is finished, drying in vacuum, recrystallizing in DMF, rinsing in acetone, and filtering to obtain the water-proofing agent with the structure of the formula A;
the infrared characterization of water repellent A is shown below: IR (KBr):
3273(-CONH-),3032 (benzene ring, -CH ═ CH-), 1756(-COO-),1665(-CONH-),1374 (-CH-)3),1181(-O-Si-C-)；
The second step is that: adding the waterproof agent prepared in the first step into a reaction bottle, heating to 75 ℃ while stirring, dropwise adding 2mol of dimethyl sulfate, continuing to react for 4 hours after the addition is finished, removing redundant dimethyl sulfate by reduced pressure distillation after the reaction is stopped, repeatedly extracting by using anhydrous ether until the viscosity of the product is unchanged, and performing vacuum drying for 10 hours at 45 ℃ to obtain the viscous waterproof stain-resistant agent with the structure shown in the formula B;
the infrared characterization of the waterproof stain resistant agent B is as follows: IR (KBr):
3030 (benzene ring, -CH ═ CH-), 1756(-COO-),1667(-CONH-),1374 (-CH-)3) 1181(-O-Si-C-),1008, 895 (quaternary ammonium salt) cm-1。
Example 1
The waterproof stain-resistant corrugated case is formed by bonding surface paper, lining paper, core paper and corrugated paper processed into corrugated corrugations, wherein the surface paper, the lining paper, the core paper and the corrugated paper processed into the corrugated corrugations are coated with a layer of waterproof stain-resistant emulsion before bonding to form a layer of waterproof stain-resistant film, and the waterproof stain-resistant emulsion comprises the following raw materials in percentage by mass: 8% of waterproof stain-resistant agent, 25% of methyl acrylate, 8% of methyl methacrylate, 10% of ethyl acrylate, 3% of initiator, 0.5% of emulsifier and the balance of deionized water;
the preparation method of the waterproof stain-resistant emulsion comprises the following steps:
(1) adding initiator sodium persulfate into deionized water to be completely dissolved to prepare an initiating solution with the mass concentration of 10%;
(2) uniformly mixing the waterproof stain-resistant agent prepared in the step S1, methyl acrylate, methyl methacrylate and ethyl acrylate to obtain a monomer solution;
(3) adding deionized water, 30% of initiation solution and emulsifier into a reaction kettle, heating to 75 ℃, simultaneously dropwise adding monomer solution and the rest initiation solution, after dropwise adding, heating to 90 ℃, continuing to react for 3 hours, after the reaction is finished, naturally cooling to 40 ℃, adding a small amount of ammonia water to adjust the pH of the reactant to 7.3, and uniformly stirring to obtain the waterproof stain-resistant emulsion.
The preparation process of the waterproof stain-resistant corrugated case specifically comprises the following steps:
firstly, sequentially placing paper for corrugated cases on a placing rack respectively, and feeding the paper into a thermal tension roller for leveling and preheating, wherein the temperature of the thermal tension roller is 40 ℃;
adding the waterproof stain-resistant emulsion into a laminating machine, performing double-sided laminating on the flat and preheated paper for the corrugated case, and then pressing the paper in a calendering roller;
step three, coating adhesive on the pressed corrugated case paper for bonding;
and step four, cutting and binding the adhered paper for the corrugated case to obtain the waterproof stain-resistant corrugated case.
Example 2
The waterproof stain-resistant corrugated case is formed by bonding surface paper, lining paper, core paper and corrugated paper processed into corrugated corrugations, wherein the surface paper, the lining paper, the core paper and the corrugated paper processed into the corrugated corrugations are coated with a layer of waterproof stain-resistant emulsion before bonding to form a layer of waterproof stain-resistant film, and the waterproof stain-resistant emulsion comprises the following raw materials in percentage by mass: 12% of waterproof stain-resistant agent, 30% of methyl acrylate, 5% of methyl methacrylate, 10% of ethyl acrylate, 5% of initiator, 1.2% of emulsifier and the balance of deionized water;
the preparation method of the waterproof stain-resistant emulsion comprises the following steps:
(1) adding initiator sodium persulfate into deionized water to be completely dissolved to prepare an initiating solution with the mass concentration of 15%;
(2) uniformly mixing the waterproof stain-resistant agent prepared in the step S1, methyl acrylate, methyl methacrylate and ethyl acrylate to obtain a monomer solution;
(3) adding deionized water, 40% of initiating solution and emulsifier into a reaction kettle, heating to 75 ℃, simultaneously dropwise adding monomer solution and the rest of initiating solution, after dropwise adding, heating to 90 ℃, continuing to react for 4 hours, after the reaction is finished, naturally cooling to 35 ℃, adding a small amount of ammonia water to adjust the pH of the reactant to 7.8, and uniformly stirring to obtain the waterproof stain-resistant emulsion.
The preparation process of the waterproof stain-resistant corrugated case specifically comprises the following steps:
firstly, sequentially placing paper for corrugated cases on a placing rack respectively, and feeding the paper into a thermal tension roller for leveling and preheating, wherein the temperature of the thermal tension roller is 45 ℃;
adding the waterproof stain-resistant emulsion into a laminating machine, performing double-sided laminating on the flat and preheated paper for the corrugated case, and then pressing the paper in a calendering roller;
step three, coating adhesive on the pressed corrugated case paper for bonding;
and step four, cutting and binding the adhered paper for the corrugated case to obtain the waterproof stain-resistant corrugated case.
Example 3
The waterproof stain-resistant corrugated case is formed by bonding surface paper, lining paper, core paper and corrugated paper processed into corrugated corrugations, wherein the surface paper, the lining paper, the core paper and the corrugated paper processed into the corrugated corrugations are coated with a layer of waterproof stain-resistant emulsion before bonding to form a layer of waterproof stain-resistant film, and the waterproof stain-resistant emulsion comprises the following raw materials in percentage by mass: 10% of waterproof stain-resistant agent, 28% of methyl acrylate, 6% of methyl methacrylate, 14% of ethyl acrylate, 4% of initiator, 1% of emulsifier and the balance of deionized water;
the preparation method of the waterproof stain-resistant emulsion comprises the following steps:
(1) adding initiator sodium persulfate into deionized water to be completely dissolved to prepare an initiating solution with the mass concentration of 12%;
(2) uniformly mixing the waterproof stain-resistant agent prepared in the step S1, methyl acrylate, methyl methacrylate and ethyl acrylate to obtain a monomer solution;
(3) adding deionized water, 35% of initiation solution and emulsifier into a reaction kettle, heating to 75 ℃, simultaneously dropwise adding monomer solution and the rest initiation solution, after dropwise adding, heating to 90 ℃, continuing to react for 3 hours, after the reaction is finished, naturally cooling to 35 ℃, adding a small amount of ammonia water to adjust the pH of the reactant to 7.4, and uniformly stirring to obtain the waterproof stain-resistant emulsion.
The preparation process of the waterproof stain-resistant corrugated case specifically comprises the following steps:
firstly, sequentially placing paper for corrugated cases on a placing rack respectively, and feeding the paper into a thermal tension roller for leveling and preheating, wherein the temperature of the thermal tension roller is 43 ℃;
adding the waterproof stain-resistant emulsion into a laminating machine, performing double-sided laminating on the flat and preheated paper for the corrugated case, and then pressing the paper in a calendering roller;
step three, coating adhesive on the pressed corrugated case paper for bonding;
and step four, cutting and binding the adhered paper for the corrugated case to obtain the waterproof stain-resistant corrugated case.
Comparative example 1
Normal corrugated boxes, are not coated with water-resistant stain-resistant emulsion.
Comparative example 2
The remainder of the process was the same as in example 3 except that no water and soil repellent was added to the water and soil repellent emulsion.
Comparative example 3
In the same manner as in example 3, the water-and stain-resistant emulsion was replaced with a commonly used silicone water-repellent agent (e.g., tetramethylsilane) and a quaternary ammonium salt antibacterial agent (dimethylammonium chloride) at a ratio of 1:1.
Performance test of waterproof stain-resistant corrugated case
1. Waterproof and stain-resistant type corrugated carton waterproof moisture absorption test
Mixing the abovePrepared 1m3The square corrugated cases are all placed in the same closed room with the humidity of 90 percent, the humidity of the room is kept unchanged, and the weight of the corrugated cases is tested at different time;
water and moisture resistance test of corrugated case
| 0h/g | 5h/g | 10h/g | 24h/g | 48h/g | |
| Example 1 | 760 | 760 | 760 | 761 | 763 |
| Example 2 | 771 | 771 | 771 | 771 | 772 |
| Example 3 | 765 | 765 | 765 | 765 | 767 |
| Comparative example 1 | 745 | 749 | 755 | 763 | 787 |
| Comparative example 2 | 755 | 756 | 759 | 762 | 772 |
| Comparative example 3 | 763 | 763 | 765 | 769 | 774 |
As can be seen from table one, the corrugated cases prepared in examples 1 to 3 had good water resistance and moisture resistance.
2. Antibacterial and stain-resistant test for waterproof and stain-resistant corrugated carton
Placing the corrugated case in an environment with the humidity of 80% and the temperature of 35 ℃;
(1) mildew resistance:
TABLE 2 mildew resistance of water-proof and stain-resistant corrugated paper box
(2) Antibacterial property:
table 3 antibacterial property of waterproof and stain-resistant type corrugated box
As can be seen from tables two and three, the corrugated cases prepared in examples 1 to 3 have good antifungal and antibacterial properties.
The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.
Claims (8)
1. Waterproof resistant dirty type corrugated box, its characterized in that: the corrugated case is formed by bonding surface paper, lining paper, core paper and corrugated paper processed into corrugated corrugations, wherein the surface paper, the lining paper, the core paper and the corrugated paper processed into the corrugated corrugations are coated with a layer of waterproof stain-resistant emulsion before bonding to form a layer of waterproof stain-resistant film, and the waterproof stain-resistant emulsion comprises the following raw materials in percentage by mass: 8-12% of waterproof stain-resistant agent, 25-30% of methyl acrylate, 5-8% of methyl methacrylate, 10-15% of ethyl acrylate, 3-5% of initiator, 0.5-1.2% of emulsifier and the balance of deionized water;
the preparation method of the waterproof stain-resistant emulsion comprises the following steps:
s1 preparation of waterproof stain-resistant agent
The reaction formula is shown as follows:
the first step is as follows: adding aminoethyl aminopropyl methyl dimethoxysilane, maleic acid and tyrosine octadecyl ester into a reaction bottle, heating to 70-75 ℃, keeping the temperature for reaction for 45-60min, precipitating a product by using an aqueous solution containing 60% of ethanol after the reaction is finished, drying in vacuum, recrystallizing in DMF, rinsing in acetone, and filtering to obtain the water-proofing agent with the structure of the formula A;
the second step is that: adding the waterproof agent prepared in the first step into a reaction bottle, heating to 70-75 ℃ while stirring, dropwise adding dimethyl sulfate, continuing to react for 3-4h after the addition is finished, removing redundant dimethyl sulfate by reduced pressure distillation after the reaction is stopped, repeatedly extracting with anhydrous ether until the viscosity of the product is unchanged, and performing vacuum drying for 10h at 45-50 ℃ to obtain the viscous waterproof stain-resistant agent with the structure of formula B;
s2 emulsion polymerization
(1) Adding initiator sodium persulfate into deionized water to be completely dissolved to prepare an initiating solution with the mass concentration of 10-15%;
(2) uniformly mixing the waterproof stain-resistant agent prepared in the step S1, methyl acrylate, methyl methacrylate and ethyl acrylate to obtain a monomer solution;
(3) adding deionized water, part of initiation solution and emulsifier into a reaction kettle, heating to 75 ℃, simultaneously dropwise adding monomer solution and the rest initiation solution, after dropwise adding, heating to 90 ℃, continuing to react for 3-4h, after the reaction is finished, naturally cooling to 35-40 ℃, adding a small amount of ammonia water to adjust the pH of the reactant, and uniformly stirring to obtain the waterproof stain-resistant emulsion.
2. The waterproof and stain-resistant corrugated carton according to claim 1, wherein: the mol ratio of the aminoethyl aminopropyl methyl dimethoxysilane to the maleic acid to the tyrosine octadecyl ester to the dimethyl sulfate is 1:1.1-1.3:1: 2-2.5.
3. The waterproof and stain-resistant corrugated carton according to claim 1, wherein: in step S1, the reaction of the first step is performed in a nitrogen atmosphere.
4. The waterproof and stain-resistant corrugated carton according to claim 1, wherein: the emulsifier is one of alkylphenol polyoxyethylene ether polyoxypropylene ether and ethyl phenylpropyl phenol polyoxyethylene ether.
5. The waterproof and stain-resistant corrugated carton according to claim 1, wherein: in step S2, the partial initiation solution is 30-40% by volume of the total initiation solution.
6. The waterproof and stain-resistant corrugated carton according to claim 1, wherein: in step S2, ammonia water adjusts the pH of the reaction to 7-7.8.
7. The preparation process of the waterproof stain-resistant corrugated case is characterized by comprising the following steps of: the method specifically comprises the following steps:
firstly, sequentially placing paper for corrugated cases on a placing rack respectively, and feeding the paper into a thermal tension roller for leveling and preheating, wherein the temperature of the thermal tension roller is 40-45 ℃;
adding the waterproof stain-resistant emulsion into a laminating machine, performing double-sided laminating on the flat and preheated paper for the corrugated case, and then pressing the paper in a calendering roller;
step three, coating adhesive on the pressed corrugated case paper for bonding;
and step four, cutting and binding the adhered paper for the corrugated case to obtain the waterproof stain-resistant corrugated case.
8. The process for preparing a waterproof and stain-resistant corrugated carton according to claim 7, wherein: the paper for the corrugated case is surface paper, lining paper, core paper and corrugated paper processed into corrugated paper.
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| CN115341411A (en) * | 2022-08-02 | 2022-11-15 | 湖州力维纸业科技股份有限公司 | Production process for light corrugated board and corrugated case |
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