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WO2008072661A1 - Papier essuie-tout - Google Patents

Papier essuie-tout Download PDF

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Publication number
WO2008072661A1
WO2008072661A1 PCT/JP2007/073952 JP2007073952W WO2008072661A1 WO 2008072661 A1 WO2008072661 A1 WO 2008072661A1 JP 2007073952 W JP2007073952 W JP 2007073952W WO 2008072661 A1 WO2008072661 A1 WO 2008072661A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
oil
kitchen paper
pulp
sheets
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.)
Ceased
Application number
PCT/JP2007/073952
Other languages
English (en)
Japanese (ja)
Inventor
Akira Hirasawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daio Paper Corp
Original Assignee
Daio Paper Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daio Paper Corp filed Critical Daio Paper Corp
Publication of WO2008072661A1 publication Critical patent/WO2008072661A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/16—Cloths; Pads; Sponges

Definitions

  • the present invention relates to kitchen paper, and more particularly, to a kitchen paper excellent in oil absorption.
  • kitchen paper made of paper non-woven fabric is widely used.
  • Kitchen paper can be used for food packaging, boiled drop lids, drip absorbent for fresh fish, water draining, oil simmering, absorption of excess oil in deep-fried food, wiping and cleaning around the kitchen, etc.
  • the kitchen paper is generally formed by laminating an appropriate number of sheets of crepe paper and nonwoven fabric that have been embossed to prevent capillary action due to gaps between the sheet fibers.
  • the main liquid absorption mechanism is configured to take in moisture, oil, and the like into the gaps between the embossments of each sheet.
  • Patent Document 1 JP 2001-146665
  • Patent Document 2 JP 2005-132710
  • the main problem of the present invention is that it has excellent oil diffusibility on the sheet surface, can retain oil in a wide range of sheets, has a large amount of oil absorption, and oil is quickly moved to the gap between sheets. To provide kitchen paper.
  • the sheet constituting the surface is embossed, the basis weight is 15-60 g / m 2 , the sheet density is less than 0.14 g / cm 3 ,
  • the sheet density of the sheet constituting the back surface is 0.14 g / cm 3 or more
  • the kitchen paper according to claim 1 or 2 wherein the sheets constituting the front and back surfaces are embossed, and the tops of the embosses applied to each sheet are adhered to each other.
  • the kitchen paper according to claim 1 or 2 wherein the sheet constituting the front and back surfaces is embossed and the top and bottom of the emboss applied to each sheet are adhered.
  • the sheet constituting the surface is embossed, the basis weight is 15 to 60 g / m 2 , the sheet density is less than 0.14 g / cm 3, and the sheet density of the sheet constituting the back surface is 0.
  • the oil absorption amount is improved, the oil is rapidly moved to the gap between the sheets, and the oil retention in the gap is enhanced.
  • the sheet density of the sheet constituting the front surface is lower than that of the sheet constituting the back surface, so that good oil absorption on the top sheet side is achieved. While ensuring the performance, the oil can be prevented from falling through.
  • the dry tensile strength in the machine direction of the top sheet is 2500 cN or less, and the dry tensile strength in the transverse direction is 700 cN or less.
  • seat which comprises front and back is made into a pulp raw material, it can manufacture at low cost. Embossing is applied to the sheets that make up the front and back surfaces! /, And the relationship between the embosses of each sheet is bonded to the embossed tops of each sheet.
  • the so-called “Nested” type is used in which the top and bottom of the emboss applied to each sheet are bonded together, a gap is surely formed between the sheets, and oil retention is further improved.
  • the bonding area ratio be 3 to 20% because the sheets can be bonded to each other reliably and the influence of the liquid absorption inhibition by the bonded portion is small.
  • the effect of hardening by the adhesive is small, and the softness by the embossing can be secured sufficiently, and the influence of the oil absorption inhibition by the bonded part is also small.
  • the sheet constituting the surface is coated or impregnated with 6 to 12 carbon atoms and saturated triglycerides, the oil absorption performance can be further improved.
  • the oil diffusibility on the sheet surface is excellent, the oil content can be retained in a wide range of the sheet, the oil absorption amount is large, and the oil is quickly moved to the gap between the sheets.
  • Kitchen paper is provided.
  • FIG. 1 is an enlarged cross-sectional view of kitchen paper XI in this form.
  • the kitchen paper XI of this embodiment is formed by laminating a plurality of sheets 1 and 2, and the sheets constituting the front and back surfaces are sheets made from pulp, and both are embossed.
  • the illustrated embodiment XI only a top sheet 1 and a back sheet 2 are employed.
  • an appropriate number of intermediate layers may be interposed between the front and back sheets.
  • seat which comprises a back surface does not necessarily need to be embossed.
  • Each component of this kitchen paper is not limited! /, But in consideration of absorption of excess oil such as deep-fried food, use of high-temperature oil for oil strainers, etc., it comes into contact with high-temperature oil of about 200 ° C. However, it is desirable to use a material that does not melt or denature.
  • the sheets 1 and 2 constituting the front and back surfaces are sheets made of pulp such as non-woven fabric using pulp fibers, stacked fiber pulp sheets, thin papers, crepe papers, and the like, which can be used for kitchen paper. It is selected from the inside.
  • the seat design is based on the configuration of the present invention.
  • the ability to use synthetic fibers as well as pulp is the most suitable, considering the ease of production and cost.
  • the front and back sheets 1 and 2 do not need to be made of the same material, and a configuration in which different sheet types are combined as necessary can be adopted.
  • the basis weight of the entire paper towel XI is preferably from flexibility and strength points or less 30 g / m 2 or more on 120 g / m 2. More preferably 50 g / m 2 or more 100 g / m 2 hereinafter. If the basis weight is too small, the strength becomes insufficient and the embossing effect is difficult to be exhibited, and the liquid retention is lowered. On the other hand, if the basis weight is too large, the flexibility decreases.
  • the basis weight (weight per unit area) of the top sheet 1 has a relatively high basis weight as one layer of the kitchen paper. Specifically, it is 15 g / m 2 or more and 60 g / m 2 or less. Preferably, it is 20 g / m 2 or more and 40 g / m 2 or less. If the basis weight is too small, even if embossed e, e... Are given clearly and clearly, they are liable to collapse and liquid retention is reduced. On the other hand, if the basis weight is too large, the flexibility decreases or the rigidity becomes large when the sheet is bent.
  • the sheet density of the top sheet is configured to be lower than the sheet density of the sheet constituting the back surface.
  • the oil is quickly received from the surface sheet surface and moved into the gap between the sheets, and the moved oil is held in the gap.
  • the specific sheet density of the top sheet is relatively low for a kitchen paper layer, less than 0.14 g / cm 3 . If the sheet density is higher than 0.14 g / cm 3 , oil diffusibility cannot be obtained, and the absorption rate decreases.
  • the lower limit of the sheet density is preferably set to 0. Olg / cm 3 or more in consideration of strength.
  • the surface sheet has a relatively high dry tensile strength as a single layer of kitchen paper.
  • the dry tensile strength in the machine direction is 2500 cN.
  • the transverse dry tensile strength should be 700 cN or less. If the dry tensile strength is excessively high, the flexibility decreases. On the other hand, if it is too low, the shape retainability of the embossing is lowered, and for example, the risk of the embossing being broken during oil absorption increases.
  • the dry tensile strength of the present invention is based on JIS P 8113.
  • the back sheet preferably has a basis weight similar to that of the top sheet, that is, 15 g / m 2 or more and 60 g / m 2 or less.
  • the basis weight is more preferably 20 g / m 2 or more and 50 g Z m or less.
  • the sheet density of the back sheet is preferably higher than that of the top sheet, that is, 0.14 g / cm 3 or more.
  • the upper limit of the sheet density is preferably 0.50 g / cm 3 or more in consideration of softness and the like.
  • each sheet should be about 200 ⁇ m or more and less than 300 ⁇ m for the top sheet and about 100 ⁇ m or more and less than 200 ⁇ m for the back sheet! No!
  • the raw material pulp of each sheet is, for example, wood pulp, non-wood pulp, synthetic pulp, waste paper pulp, etc., more specifically, groundwood pulp (GP), stone grand pulp (SGP), refiner ground pulp ( Mechanical pulp (MP), chemical mechanical pulp (RGP), pressurized groundwood pulp (PGW), thermo-mechanical double pulp (TMP), chemi-thermo mechanical pulp (CTMP), bleached chemisa-mo mechanical pulp (BCTMP) CGP), semi-chemical pulp (SCP), hardwood bleached kraft pulp (LBKP), softwood bleached kraft pulp (NBKP) and other kraft pulp (KP), soda pulp (AP), sulfite pulp (SP), dissolving pulp (DP) and other chemical pulp (CP), nylon, rayon, polyester, polybutyl alcohol (PVA) and other synthetic pulp, ground pulp (TP), cotton, flax, hemp, jute, maw Rough pulp, straw pulp, esvaltopal made from leek, ramie, etc.
  • GP groundwood
  • appropriate agents such as pH adjusters such as dispersants, caustic soda and aqueous ammonia, antifoaming agents, preservatives, fluorescent dyes, mold release agents, water resistance agents, flow modifiers, yield improvers, etc. Can be added.
  • the surface sheet in producing the above-mentioned characteristic surface sheet, it can be achieved by adjusting the freeness (CSF) of raw material pulp slurry to 600cc or more and using a papermaking raw material to which a softening agent is added. is there.
  • This freeness value is extremely low compared to the papermaking raw material of general kitchen paper sheets.
  • the surface sheet can be designed to have the basis weight, sheet density, and dry tensile strength shown above.
  • softening agent softening agents such as known surfactants can be used. Cationic surfactants, particularly fatty acid esters and fatty acid amides are particularly suitable.
  • the sheet constituting the surface layer is preferably coated or impregnated with a triglyceride having 6 to 12 carbon atoms and saturated.
  • a triglyceride having 6 to 12 carbon atoms and saturated gives the top sheet 1 the effect of improving the diffusibility and absorption rate of one layer of oil.
  • a known method for incorporating triglyceride into the nonwoven fabric sheet a known method for internally or externally adding a drug to a sheet can be used. For example, if it is added internally, it is possible to use a method of making paper from raw pulp or raw pulp slurry added with triglyceride. In the case of external addition, after the sheet is formed, triglycerides can be dispersed, applied, and applied. If spraying, a known spray device that sprays the drug on the sheet can be used, and if coating is performed, a known coating machine or printing machine can be used.
  • the method of laminating and bonding the sheets 1 and 2 is not particularly limited, but preferably a method in which embossing is applied to the sheet or embossing is performed, and the sheet is laminated on the facing sheet and bonded with an adhesive. Can be taken.
  • Adhesives used for bonding between sheets are, for example, PVA (polyvinyl alcohol), CMC (carboxyl methylcellulose), starch Etc. are suitable.
  • the adhesion area ratio between the top sheet and the back sheet that is, the ratio of the area of the adhesion part to the sheet area (one side) is preferably in the range of 3 to 20%. Within this range, the effect of hardening by the adhesive is small, and the softness by the embossing can be sufficiently secured, and the influence of the oil absorption inhibition by the bonded portion is also small.
  • a method of spraying, applying, and applying can be employed. If spraying, a known spray device that sprays the drug on the sheet can be used, and if coating is performed, a known coating machine or printing machine can be used.
  • the embossing relationship between the two sheets is, as is clear from the drawings and the above description, the tops t, t ... of the embosses e, e ... of the front and back sheets 1, 2 ... Force S taking the form of so-called “Tip to Tip” that faces each other S, but not limited to this, adopting the so-called “Nested” form in which the top of the embossed surface sheet and the bottom of the back sheet are bonded together Is also possible.
  • the “Tip to Tip” form is superior in terms of large voids and high oil retention
  • the “Nested” form is superior in terms of oil diffusibility.
  • the top part t is the top surface of the convex part protruding so as to approach from the facing sheet, and the bottom part is the bottom surface of the concave part recessed so as to be separated from the facing sheet.
  • the embossing performed on the sheet can be performed, for example, by passing the embossed sheet between a pair of embossing rolls.
  • the pair of embossing rolls is preferably a force S that can be both a metal roll, one is an elastic roll made of rubber or the like, and the other is a metal roll having an embossing projection.
  • the combination of the elastic roll and the metal roll is preferable because there is no problem in adjusting the clearance of the roll, or problems such as paper dust clogging the roll!
  • embossing can be performed with a pair of embossing rolls heating both or one embossing roll.
  • embossing roll is heated! /, The embossing is given more clearly and clearly.
  • the heated embossing roll may be an elastic roll, but is preferably a metal roll. This is because the metal roll has better thermal conductivity and exhibits the effect of heating effectively, and when the metal roll is heated, it has an embossed shape. This is because heat is applied to the sheet in a corresponding manner, and the embossing force S applied becomes clearer and clearer.
  • the surface temperature of the heating roll is a pair of embossing roll forces, both of which are metal rolls, or a force that is a combination of an elastic roll and a metal roll, and any of the elastic roll and metal roll is heated. Regardless of force, etc., 40 to 140 ° C, preferably 60 to 120 ° C, more preferably 80 to 100 ° C. If the heating temperature is too low, the effect that the embossing becomes clear may not be sufficiently exhibited. On the other hand, if the heating temperature is too high, energy loss may occur, the sheet may be seized, and the manufactured sheet may become hard.
  • the embossing is applied so that the embossing pressure between the pair of embossing rolls is 5 to 30 kgf / cm, preferably 10 to 25 kgf / cm, more preferably 15 to 20 kgf / cm. If the embossing pressure is too low, the effect of clear embossing may not be fully demonstrated. On the other hand, if the embossing pressure is too high, the processed base paper may be torn.
  • the pair of embossing rolls is a combination of an elastic roll and a metal roll
  • the elastic roll preferably has a Shore hardness force of 40 to 70 on its surface. If the Shore hardness is too low, that is, if the elastic roll surface is too soft, the sheet or the sheet base may be broken. On the other hand, if the Shore hardness is too high, that is, if the surface of the elastic roll is too hard, embossing may not occur.
  • the specific shape of the emboss is an appropriate design matter.
  • the shape of the top is square, and the shape of the recess between adjacent tops is a trapezoidal emboss.
  • the shape of the top can be square, diamond, circle, ellipse or polygon.
  • the top portion is flat if each sheet is bonded by an adhesive.
  • Area of the top portion is narrower
  • the area of the top is too large, the volume of the absorption space due to embossing becomes small, so that sufficient absorption capacity cannot be obtained.
  • the depth D of emboss e, e... is also an appropriate design item. Force is approximately 1.0mm or more, preferably 1. It should be 3mm or more.
  • emboss pattern formed by a large number of embosses e, e... is also an appropriate design item, and conventionally known emboss patterns can be appropriately employed in consideration of aesthetics and functionality.
  • the form XI described above has a two-layer structure of only the front and back sheets 1 and 2, but it can have a multilayer structure of three or more layers. In this case, an intermediate layer is formed between the sheets constituting the front and back surfaces. It is preferable to provide a pulp layer.
  • the pulp layer can be formed by interposing a pulp sheet between the front and back sheets. When the pulp layer is provided, the liquid retention is increased.
  • the pulp constituting the pulp layer is not limited, but it is desirable to use a pure pulp that does not contain fillers. In particular, it is desirable to use a pulp containing more NBKP than LBKP.
  • the ratio of NBKP: LBKP is set to 50:50 to 100: 0.
  • NBKP is stronger than LBKP
  • the fiber thickness tends to be thicker, the more NBKP, the higher the bulk.
  • the absorption rate of moisture and oil adhering to the front and back sheets increases, and the amount retained increases.
  • the LBKP fiber length is 0.8 to 1.8 mm
  • the fiber thickness is 1.0 to 2 Odtex
  • the NBKP fiber length is 2.5 to 4.5 mm
  • NBKP fiber lash length 2.5 to 4.5 mm and fiber lash thickness of 3.0 to 4. Odtex will increase the bulk and increase the water absorption rate and oil absorption rate. Also, if the fiber length of LBKP is 0.8 to 1.8 mm and the fiber thickness is 1.0 to 2. Odtex, it will be arranged so as to be properly entangled with the NBKP fiber and to fill the gap of the NBKP fiber. Strength and strength are improved, and moisture and oil retention are improved.
  • the oil is sufficiently and quickly diffused on the surface sheet surface and is quickly moved to the gap between the sheets. Effectively retained and extremely excellent in oil absorption performance
  • the oil absorption rate was evaluated in three stages by dropping lcc salad oil (manufactured by Nisshin Oillio Group Co., Ltd.) on the side surface of the kitchen paper and visually observing it. Evaluation criteria are time force S until it can be seen that the glossiness (light) due to the dropped oil has disappeared from the sheet surface, 1 (bad) for 1 minute or more, 30 seconds to 1 minute 2 (normal) and 3 (good) for less than 30 seconds.
  • the amount of water absorption was measured after measuring the weight of a dry paper sample cut to 100 mm square, sufficiently immersing the paper sample in pure water, and then lifting the sample from pure water and measuring the weight after 30 seconds.
  • the measured force was also the value obtained by subtracting the weight in the dry state as the amount of water absorption.
  • the kitchen paper used for power was a two-layer structure in which the front and back sheets were bonded together with an adhesive.
  • the adhesive in Examples and Conventional Examples is PVA.
  • the sheet was made of thin paper on both sides, and the embossed shape was square in all examples.
  • Triglyceride was a medium chain fatty acid having 8 to 10 carbon atoms, the amount of rice was measured based on JIS P 8124, and the dry tensile strength was measured based on JIS P 8113.
  • composition and test results of kitchen paper in each example are shown in Table 1.
  • the amount of oil penetration is very small compared to the conventional and comparative examples. It is. From this force, it can be considered that the structure of this example allows the oil to be quickly moved into the gap by the non-woven fabric surface sheet, and the oil to be effectively retained in the gap.
  • the example of the present invention is superior to the comparative examples except the comparative example 3 and the conventional example.
  • Comparative Example 3 although the oil absorption amount and the oil absorption speed were fast, the oil was retained in the voids! /, NA! /, SE! /, Or a sticky surface was observed.
  • the amount of water absorption is higher than that of the comparative example and the conventional example. Also, the strength when wet is sufficient. In Comparative Example 3, although the amount of water absorption was large, the holding power was not enough and dripping of water was observed after the measurement.
  • the examples of the present invention have the same or superior performance in terms of water absorption as the conventional examples, and that the oil absorption performance is excellent in each stage.
  • the present invention can be used for sheet-like materials for the purpose of wiping off oil.
  • FIG. 1 is an enlarged cross-sectional view of a kitchen paper of the present invention.

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  • Paper (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)

Abstract

L'objectif de la présente invention est de proposer un papier essuie-tout qui présente une excellente propriété d'absorption de l'huile. A cet effet, un papier essuie-tout est obtenu en laminant une pluralité de feuilles, le recto étant constitué d'une feuille gaufrée présentant un poids de base de 15 à 60 g/m2 et une densité de feuille inférieure à 0,14 g/cm3 et le verso étant constitué d'une feuille présentant une densité de feuille égale ou supérieure à 0,14 g/cm3.
PCT/JP2007/073952 2006-12-13 2007-12-12 Papier essuie-tout Ceased WO2008072661A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006335236A JP4448509B2 (ja) 2006-12-13 2006-12-13 キッチンペーパー
JP2006-335236 2006-12-13

Publications (1)

Publication Number Publication Date
WO2008072661A1 true WO2008072661A1 (fr) 2008-06-19

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PCT/JP2007/073952 Ceased WO2008072661A1 (fr) 2006-12-13 2007-12-12 Papier essuie-tout

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JP (1) JP4448509B2 (fr)
WO (1) WO2008072661A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100098315A (ko) * 2009-02-27 2010-09-06 다이오세이시가부시끼가이샤 위생 박엽지
WO2021081057A1 (fr) * 2019-10-21 2021-04-29 Kimberly-Clark Worldwide, Inc. Articles absorbants et leurs procédés de fabrication

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5351690B2 (ja) * 2009-09-30 2013-11-27 大王製紙株式会社 キッチンペーパー
JP5674306B2 (ja) * 2009-12-11 2015-02-25 大王製紙株式会社 キッチンペーパー及びキッチンペーパー製品
WO2011071040A1 (fr) * 2009-12-11 2011-06-16 大王製紙株式会社 Papier essuie-tout et produit de papier essuie-tout
JP5641758B2 (ja) * 2010-03-31 2014-12-17 大王製紙株式会社 キッチンペーパー

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08174766A (ja) * 1994-12-26 1996-07-09 Mitsubishi Paper Mills Ltd 吸油性シート及びその製造方法
JP2003516839A (ja) * 1999-12-14 2003-05-20 ドュラン，ラルフ 吸収性複合材料、調製、および特に工業用の拭取り商品としての使用
JP2004337621A (ja) * 1997-05-23 2004-12-02 Procter & Gamble Co 清掃シートとして有用な製造品
JP2006045690A (ja) * 2004-07-30 2006-02-16 Daio Paper Corp 衛生薄葉紙の製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08174766A (ja) * 1994-12-26 1996-07-09 Mitsubishi Paper Mills Ltd 吸油性シート及びその製造方法
JP2004337621A (ja) * 1997-05-23 2004-12-02 Procter & Gamble Co 清掃シートとして有用な製造品
JP2003516839A (ja) * 1999-12-14 2003-05-20 ドュラン，ラルフ 吸収性複合材料、調製、および特に工業用の拭取り商品としての使用
JP2006045690A (ja) * 2004-07-30 2006-02-16 Daio Paper Corp 衛生薄葉紙の製造方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100098315A (ko) * 2009-02-27 2010-09-06 다이오세이시가부시끼가이샤 위생 박엽지
JP2010202990A (ja) * 2009-02-27 2010-09-16 Daio Paper Corp 衛生薄葉紙
KR101673596B1 (ko) * 2009-02-27 2016-11-07 다이오세이시가부시끼가이샤 위생 박엽지
WO2021081057A1 (fr) * 2019-10-21 2021-04-29 Kimberly-Clark Worldwide, Inc. Articles absorbants et leurs procédés de fabrication
CN114430665A (zh) * 2019-10-21 2022-05-03 金伯利-克拉克环球有限公司 吸收制品及其制造方法
US12442139B2 (en) 2019-10-21 2025-10-14 Kimberly-Clark Worldwide, Inc. Absorbent articles and methods for manufacturing same

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