CN115157779A - Corrugated board technological and intelligent production method - Google Patents
Corrugated board technological and intelligent production method Download PDFInfo
- Publication number
- CN115157779A CN115157779A CN202210807984.9A CN202210807984A CN115157779A CN 115157779 A CN115157779 A CN 115157779A CN 202210807984 A CN202210807984 A CN 202210807984A CN 115157779 A CN115157779 A CN 115157779A
- Authority
- CN
- China
- Prior art keywords
- paper
- core paper
- cylinder
- corrugated
- core
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 239000000123 paper Substances 0.000 claims abstract description 95
- 239000011087 paperboard Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 12
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 239000003364 biologic glue Substances 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 9
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 8
- 239000011111 cardboard Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000004115 Sodium Silicate Substances 0.000 claims description 6
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 6
- 239000003607 modifier Substances 0.000 claims description 5
- 244000046052 Phaseolus vulgaris Species 0.000 claims description 3
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims description 3
- 239000002518 antifoaming agent Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005242 forging Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000003449 preventive effect Effects 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 3
- 230000001815 facial effect Effects 0.000 abstract description 10
- 239000003292 glue Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000002585 base Substances 0.000 description 9
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 235000019764 Soybean Meal Nutrition 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000004925 denaturation Methods 0.000 description 2
- 230000036425 denaturation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000004455 soybean meal Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Laminated Bodies (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides a corrugated board technologized and intelligentized production method, which specifically comprises the following steps: the method comprises the following steps: preparing adhesive for corrugated boards; step two: the facial tissue on the first facial tissue cylinder is fed into the hot plate after passing through the plurality of paper pulling rollers, and the facial tissue on the second facial tissue cylinder is pasted through the plurality of paper pulling rollers and the pasting device and is fed into the hot plate; step three: the core paper on the first core paper cylinder passes through a plurality of paper pulling sheaves and is sent into a drying cylinder, and the core paper on the second core paper cylinder passes through the plurality of paper pulling sheaves and is sent into the drying cylinder; step four: the core paper from the first core paper cylinder and the core paper from the second core paper cylinder pass through a drying cylinder; the corrugated paperboard is provided with the base paper with the one-layer structure, the core paper with the two-layer structure and the surface paper with the two-layer structure, wherein the core paper is positioned between the base paper and the surface paper, and the core paper is corrugated raw paper, so that the using amount of glue can be reduced under the condition of the same ration, the requirement of environmental protection is met, meanwhile, the strength of the corrugated paperboard is increased, the thickness of the corrugated paperboard is reduced, and the corrugated paperboard is convenient to transport and store.
Description
Technical Field
The invention belongs to the technical field of corrugated boards, and relates to a corrugated board technological and intelligent production method.
Background
The corrugated paper board is also called corrugated paper board, the interior of the corrugated paper board is formed by bonding corrugated paper pressed into permanent corrugated shape and a box paper board, and the structure ensures that the strength of the corrugated paper board is far greater than that of the corrugated paper board and the box paper board, and the corrugated paper board has good buffering and strength performances.
Reliable bonding is essential to the formation and retention of the corrugated cardboard frame and is also important for the quality of the final corrugated cardboard packaging, and poorly bonded cardboard can clog or stop other post-processing equipment, causing loss of production, but the prior art corrugated cardboard is poorly bonded, and the glue produced is made of organic materials that continue to volatilize an organic irritant odor when used in a high temperature environment, which is not environmentally acceptable.
Further, in the prior art, the paper board for product packaging is generally formed by bonding the surface paper on two sides and the corrugated paper in the middle, the strength of the common paper board depends on the number of layers of the surface paper and the corrugated paper, generally speaking, the thickness of the paper board needs to be increased to increase the strength of the paper board, the quantitative amount of some base paper on the current market has a specific specification, if the common paper board is produced according to a common process, the thickness of the high-strength paper board is thicker, in addition, the using amount of glue is more, and the environment-friendly requirement is not met.
Disclosure of Invention
The invention aims to provide a corrugated board process and intelligent production method to solve the problems in the background technology.
The purpose of the invention can be realized by the following technical scheme:
a corrugated board process and intelligent production method specifically comprises the following steps:
the method comprises the following steps: preparing an adhesive for the corrugated board;
(1) Dissolving sodium hydroxide and sodium silicate in water, adding ethanol to obtain pretreatment solution, heating to 40-50 deg.C at room temperature, slowly adding bean cortex Phellodendri powder, and stirring for 30-35min;
(2) Preparing thiourea, a modifier and a defoaming agent into a solution, gradually dropwise adding the solution into a reaction kettle, and uniformly stirring for 30-40min;
(3) Adding SDS and a mildew preventive, reacting for 30-50min, cooling, stirring and discharging to obtain a biological adhesive, performing performance detection on the biological adhesive, and refrigerating for later use;
step two: the surface paper on the first surface paper cylinder passes through a plurality of paper pulling rollers and then is fed into the hot plate, and the surface paper on the second surface paper cylinder passes through a plurality of paper pulling rollers, is pasted through the pasting device and then is fed into the hot plate;
step three: the core paper on the first core paper cylinder passes through a plurality of paper pulling sheaves, is pasted by a pasting device and is sent into a drying cylinder, and the core paper on the second core paper cylinder passes through the plurality of paper pulling sheaves and is sent into the drying cylinder;
step four: the core paper from the first core paper cylinder and the core paper from the second core paper cylinder pass through a drying cylinder, are dried and attached together, pass through a forging roller, pass through a pasting device, are pasted and are sent into a hot plate;
step five: and finally, laminating the base paper, the core paper and the surface paper in the hot plate through a biological adhesive to obtain the high-strength corrugated board.
In the above corrugated board production method, the raw material ratio of the biological adhesive is as follows: 320% of water, 3% of sodium hydroxide, 2% of sodium silicate, 15% of ethanol, 5% of thiourea, 2% of tributyl phosphate, 3% of sodium tripolyphosphate, 10% of SDS and 0.1% of catechol.
In the above corrugated board production method, the main technical indexes of the biological adhesive are as follows: the appearance was a brown thick liquid with a solids content of 15%.
In the above method for producing corrugated cardboard, the technical indicators of the biological adhesive further include: the pH value of the biological adhesive is 12.0-12.5, and the viscosity of the biological adhesive at 35 ℃ is 60000-75000mPa.s.
Compared with the prior art, the process and intelligent production method of the corrugated board has the advantages that:
1. the formaldehyde-free biomass adhesive with good bonding strength and water resistance is prepared from soybean meal by adopting the technologies of alkali, ethanol, thiourea, SDS (sodium dodecyl sulfate) and other modifiers, combined with denaturation crosslinking, de-adhesion treatment and the like, has an excellent prepressing effect, and is suitable for the gluing process of the existing corrugated board.
2. Set up the base stock of one deck structure, the core paper of two-layer structure and the facial tissue of two-layer structure, the core paper is located between base stock and the facial tissue, and the core paper is the corrugated medium, can be under the equal quantitative condition, and the use amount of less glue accords with the requirement of environmental protection, increases corrugated container board's intensity simultaneously, reduces the thickness of corrugated container board, and the transportation of being convenient for is stored.
Drawings
Fig. 1 is a schematic structural diagram of a corrugated board manufacturing and intelligent production method of the present invention.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
A corrugated board process and intelligent production method specifically comprises the following steps:
the method comprises the following steps: preparing an adhesive for the corrugated board;
(1) Dissolving sodium hydroxide and sodium silicate in water, adding ethanol to obtain pretreatment solution, heating to 40-50 deg.C at room temperature, slowly adding bean cortex Phellodendri powder, and stirring for 30-35min;
(2) Preparing thiourea, a modifier and a defoaming agent into a solution, gradually dropwise adding the solution into a reaction kettle, and uniformly stirring for 30-40min;
(3) Adding SDS and a mildew preventive, reacting for 30-50min, cooling, stirring and discharging to obtain a biological adhesive, carrying out performance detection on the biological adhesive, and refrigerating for later use;
step two: the facial tissue on the first facial tissue cylinder is fed into the hot plate after passing through the plurality of paper pulling rollers, and the facial tissue on the second facial tissue cylinder is pasted through the plurality of paper pulling rollers and the pasting device and is fed into the hot plate;
step three: the core paper on the first core paper cylinder passes through a plurality of paper pulling sheaves, is pasted by a pasting device and is sent into a drying cylinder, and the core paper on the second core paper cylinder passes through the plurality of paper pulling sheaves and is sent into the drying cylinder;
step four: the core paper from the first core paper cylinder and the core paper from the second core paper cylinder pass through a drying cylinder, are dried and attached together, pass through a forging roller, are pasted through a pasting device and are sent into a hot plate;
step five: and the base paper on the base paper cylinder is pasted through a plurality of paper pulling rollers and a pasting device, and is sent into the hot plate, and finally, the base paper, the core paper and the surface paper are laminated through a biological adhesive in the hot plate to obtain the high-strength corrugated board.
As shown in fig. 1, the invention relates to a corrugated board technologized and intelligent production method, wherein the raw material ratio of the biological adhesive is as follows: 320% of water, 3% of sodium hydroxide, 2% of sodium silicate, 15% of ethanol, 5% of thiourea, 2% of tributyl phosphate, 3% of sodium tripolyphosphate, 10% of SDS and 0.1% of catechol.
As shown in fig. 1, the main technical indexes of the biological adhesive in the method for producing corrugated boards in a technologized and intelligent manner are as follows: the appearance was a brown thick liquid with a solids content of 15%.
As shown in fig. 1, the technical indexes of the biological adhesive in the method for producing corrugated cardboard in a technologized and intelligent manner further include: the pH value of the biological adhesive is 12.0-12.5, and the viscosity of the biological adhesive at 35 ℃ is 60000-75000mPa.s.
The invention relates to a process and intelligent production method of a corrugated board, which adopts the technologies of alkali, ethanol, thiourea, SDS and other modifiers combined with denaturation crosslinking and de-bonding treatment, etc. to prepare the soybean meal into the formaldehyde-free biomass adhesive with good bonding strength and water resistance, has excellent prepressing effect, is suitable for the gluing process of the existing corrugated board, and is provided with a base paper with a layer structure, a core paper with a two-layer structure and a surface paper with a two-layer structure, wherein the core paper is positioned between the base paper and the surface paper, and is corrugated base paper.
Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (4)
1. A corrugated board process and intelligent production method is characterized by comprising the following steps:
the method comprises the following steps: preparing an adhesive for the corrugated board;
(1) Dissolving sodium hydroxide and sodium silicate in water, adding ethanol to obtain pretreatment solution, heating to 40-50 deg.C at room temperature, slowly adding bean cortex Phellodendri powder, and stirring for 30-35min;
(2) Preparing thiourea, a modifier and a defoaming agent into a solution, gradually dropwise adding the solution into a reaction kettle, and uniformly stirring for 30-40min;
(3) Adding SDS and a mildew preventive, reacting for 30-50min, cooling, stirring and discharging to obtain a biological adhesive, performing performance detection on the biological adhesive, and refrigerating for later use;
step two: the surface paper on the first surface paper cylinder passes through a plurality of paper pulling rollers and then is fed into the hot plate, and the surface paper on the second surface paper cylinder passes through a plurality of paper pulling rollers, is pasted through the pasting device and then is fed into the hot plate;
step three: the core paper on the first core paper cylinder passes through a plurality of paper pulling sheaves, is pasted by a pasting device and is sent into a drying cylinder, and the core paper on the second core paper cylinder passes through the plurality of paper pulling sheaves and is sent into the drying cylinder;
step four: the core paper from the first core paper cylinder and the core paper from the second core paper cylinder pass through a drying cylinder, are dried and attached together, pass through a forging roller, pass through a pasting device, are pasted and are sent into a hot plate;
step five: and the base paper on the base paper cylinder is pasted through a plurality of paper pulling rollers and a pasting device, and is sent into the hot plate, and finally, the base paper, the core paper and the surface paper are laminated through a biological adhesive in the hot plate to obtain the high-strength corrugated board.
2. The technologized and intelligent production method of corrugated paperboards as claimed in claim 1, wherein the biological adhesive comprises the following raw materials in parts by weight: 320% of water, 3% of sodium hydroxide, 2% of sodium silicate, 15% of ethanol, 5% of thiourea, 2% of tributyl phosphate, 3% of sodium tripolyphosphate, 10% of SDS and 0.1% of catechol.
3. A corrugated cardboard technologized and intelligent production method as claimed in claim 1, wherein the main technical indexes of the biological adhesive are as follows: the appearance was a brown thick liquid with a solids content of 15%.
4. The artistic and intelligent production method of corrugated cardboards as claimed in claim 1, wherein the technical indexes of the biological adhesive further include: the pH value of the biological adhesive is 12.0-12.5, and the viscosity of the biological adhesive at 35 ℃ is 60000-75000mPa.s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210807984.9A CN115157779A (en) | 2022-07-11 | 2022-07-11 | Corrugated board technological and intelligent production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210807984.9A CN115157779A (en) | 2022-07-11 | 2022-07-11 | Corrugated board technological and intelligent production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115157779A true CN115157779A (en) | 2022-10-11 |
Family
ID=83492367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210807984.9A Pending CN115157779A (en) | 2022-07-11 | 2022-07-11 | Corrugated board technological and intelligent production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115157779A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1128781A (en) * | 1995-09-29 | 1996-08-14 | 猴王研究所 | Maize starch adhesive agent and prepn. method thereof |
| CN104131486A (en) * | 2014-08-25 | 2014-11-05 | 苏州正隆纸业有限公司 | High-strength corrugated cardboard and production process thereof |
| CN107033839A (en) * | 2017-05-17 | 2017-08-11 | 常州力纯数码科技有限公司 | A kind of preparation method of moistureproof corrugated paper adhesive |
| CN107090250A (en) * | 2017-05-24 | 2017-08-25 | 安徽龙泉硅材料有限公司 | A kind of method for preparing industrial metasilicate adhesive |
| CN107556942A (en) * | 2017-08-24 | 2018-01-09 | 樊之雄 | A kind of corrugated paper quick-drying MR adhesive and preparation method thereof |
| CN107935660A (en) * | 2017-12-05 | 2018-04-20 | 宝鸡科尔夫肥业科技有限公司 | A kind of humic acid type sweet potato special complex fertilizer and preparation method thereof |
| CN109181629A (en) * | 2018-07-17 | 2019-01-11 | 蚌埠市奥特纸箱机械有限公司 | A kind of calcium carbonate whisker binding paper box glue and preparation method thereof |
| CN110437763A (en) * | 2019-08-16 | 2019-11-12 | 严佳飞 | A kind of environmental-protection oxidation-resistance adhesive for paper box and preparation method thereof |
-
2022
- 2022-07-11 CN CN202210807984.9A patent/CN115157779A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1128781A (en) * | 1995-09-29 | 1996-08-14 | 猴王研究所 | Maize starch adhesive agent and prepn. method thereof |
| CN104131486A (en) * | 2014-08-25 | 2014-11-05 | 苏州正隆纸业有限公司 | High-strength corrugated cardboard and production process thereof |
| CN107033839A (en) * | 2017-05-17 | 2017-08-11 | 常州力纯数码科技有限公司 | A kind of preparation method of moistureproof corrugated paper adhesive |
| CN107090250A (en) * | 2017-05-24 | 2017-08-25 | 安徽龙泉硅材料有限公司 | A kind of method for preparing industrial metasilicate adhesive |
| CN107556942A (en) * | 2017-08-24 | 2018-01-09 | 樊之雄 | A kind of corrugated paper quick-drying MR adhesive and preparation method thereof |
| CN107935660A (en) * | 2017-12-05 | 2018-04-20 | 宝鸡科尔夫肥业科技有限公司 | A kind of humic acid type sweet potato special complex fertilizer and preparation method thereof |
| CN109181629A (en) * | 2018-07-17 | 2019-01-11 | 蚌埠市奥特纸箱机械有限公司 | A kind of calcium carbonate whisker binding paper box glue and preparation method thereof |
| CN110437763A (en) * | 2019-08-16 | 2019-11-12 | 严佳飞 | A kind of environmental-protection oxidation-resistance adhesive for paper box and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108179661B (en) | High-strength waterproof multilayer composite corrugated board | |
| CN111559121B (en) | Production method of corrugated case | |
| CN103225227A (en) | Processing technique for high-strength corrugated board | |
| CN103358597A (en) | Manufacturing process for energy-saving and environment-friendly heavy corrugated board | |
| CN102632535A (en) | Preparation method of aldehyde-free artificial board | |
| CN110561828A (en) | Pressure-resistant corrugated carton and production process thereof | |
| CN103692505A (en) | Carbonized plywood and manufacturing method thereof | |
| CN101130287B (en) | Technique for processing high bearing corrugated board | |
| CN110653981B (en) | Production process of environment-friendly packaging box | |
| CN212825936U (en) | A wood-based paper plywood | |
| CN115157779A (en) | Corrugated board technological and intelligent production method | |
| CN108677614B (en) | Six-layer corrugated board and production process thereof | |
| CN114163973B (en) | Aldehyde-free adhesive and preparation method and application thereof | |
| CN105501603B (en) | A kind of production method of corrugated paper packing case with high strength | |
| CN104131486A (en) | High-strength corrugated cardboard and production process thereof | |
| CN118461367B (en) | Moisture-proof corrugated paper and preparation method thereof | |
| CN201597949U (en) | Flattened bamboo composite plywood for container floor | |
| CN109130432A (en) | The production method of double layer cell plate | |
| CN207927005U (en) | A kind of wiring board consent pressing structure | |
| CN111169090A (en) | Manufacturing process of high-strength corrugated carton | |
| CN102825644A (en) | Plate manufacturing process | |
| CN109262796B (en) | Processing technology of composite board for packaging carton | |
| CN116100911A (en) | A high-strength moisture-proof packaging cardboard and its preparation method | |
| CN108638285B (en) | Waste paper wood shaving sizing device and waste paper shaving board preparation process based on waste paper wood shaving sizing device | |
| CN109291520A (en) | A kind of high rigidity corrugated board production technique and its application in corrugated case |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |