WO2017168931A1 - Procédé de fabrication de papier mince - Google Patents

Procédé de fabrication de papier mince Download PDF

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Publication number
WO2017168931A1
WO2017168931A1 PCT/JP2017/000530 JP2017000530W WO2017168931A1 WO 2017168931 A1 WO2017168931 A1 WO 2017168931A1 JP 2017000530 W JP2017000530 W JP 2017000530W WO 2017168931 A1 WO2017168931 A1 WO 2017168931A1
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WO
WIPO (PCT)
Prior art keywords
chemical solution
tissue paper
oil
aqueous
based chemical
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PCT/JP2017/000530
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English (en)
Japanese (ja)
Inventor
翔平 吉田
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大王製紙株式会社
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Publication of WO2017168931A1 publication Critical patent/WO2017168931A1/fr

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/16—Paper towels; Toilet paper; Holders therefor
    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/50—Spraying or projecting
    • 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

Definitions

  • the present invention relates to a method for manufacturing tissue paper.
  • the present invention relates to a method for manufacturing tissue paper to which a chemical solution is applied.
  • tissue paper used for biting moths and wiping the skin is well known.
  • dry-type tissue papers there is a tissue paper to which a chemical liquid mainly composed of a polyol such as glycerin, which is called a moisturizing tissue or a lotion tissue, is applied.
  • Moisturizing tissue has a higher moisture content in the paper due to the moisture-absorbing action of polyol, and is superior in softness and moistness compared to general-purpose tissue paper to which no chemical solution is applied.
  • this moisturizing tissue has a water-based chemical solution called a lotion chemical solution, which is mainly composed of a polyol and water, which have a hygroscopic effect, and a small percentage of oil, such as liquid paraffin, on tissue paper.
  • a lotion chemical solution which is mainly composed of a polyol and water, which have a hygroscopic effect, and a small percentage of oil, such as liquid paraffin, on tissue paper.
  • This water-based chemical solution has good affinity with pulp fibers, and after being applied to tissue paper, it penetrates into the paper, and the entire tissue paper has a moisture absorption effect by polyol and is contained in the chemical solution.
  • the liquid paraffin adheres to the fiber, thereby imparting slipperiness to the fiber surface.
  • a main problem of the present invention is to provide a method for producing tissue paper to which a chemical solution to which moist feeling, softness and smoothness are further increased is applied.
  • the present inventors considered that in the conventional manufacturing method, the aqueous chemical solution penetrates into the base paper, so that the amount of polyol acting on the surface of tissue paper is reduced, and the effect of the aqueous chemical solution is not sufficiently expressed. And it came to the completion of this invention which solved said subject.
  • the invention is as follows.
  • a method for producing tissue paper comprising:
  • invention of Claim 2 The method for producing tissue paper according to claim 1, wherein the oil-based chemical is an emulsion of a substance selected from the group of mineral oil, collagen, liquid paraffin, and fatty acid amide derivatives, or a mixture thereof.
  • the present invention applies a small amount of oil-based chemical to tissue paper before applying a water-based chemical that increases moisture content to tissue paper.
  • the oil-based chemical solution does not have good permeability to the tissue paper base like the water-based chemical solution, and therefore remains on the surface of the tissue paper base, which is the application surface.
  • the oil-based chemical liquid mainly improves smoothness due to the slipperiness of the oily component, the tissue paper to which the oil-based chemical liquid is applied to the surface easily feels smoothness.
  • Oil-based chemicals tend to feel sticky, but if an aqueous chemical solution is applied from the application surface after the oil-based chemical solution is applied, the sticky feeling decreases.
  • the moisture content of the tissue paper is further increased, making it very easy to feel moist and soft.
  • the strength of the tissue paper during the application of the aqueous chemical solution is less likely to occur, and the productivity is improved.
  • tissue paper As described above, according to the present invention, there is provided a method for producing tissue paper to which a chemical solution having a moist feeling, softness and smoothness and having excellent productivity is provided.
  • a primary chemical solution applying step for applying an oil-based chemical solution to both surfaces of a laminated tissue paper base paper in which two sheets of tissue paper are laminated, and an oil-based chemical solution is applied in this primary chemical solution applying step.
  • a secondary chemical solution applying step for applying an aqueous chemical solution to the laminated tissue paper base paper.
  • the tissue paper to which the chemical solution according to the present invention is applied is not a wet tissue in a wet state impregnated with the chemical solution, but a dry type tissue paper used for biting a wrinkle or wiping the skin.
  • This dry type tissue paper is supplied to consumers and the like as a tissue paper product in which a bundle formed by folding and laminating a plurality of sheets is stored in a paper storage box or the like.
  • tissue paper products are generally made of laminated tissue paper by laminating tissue paper made in the paper making process to make tissue paper multiple paper ply, making paper from raw paper.
  • the primary chemical solution application step and the secondary chemical solution application step are performed by laminating the tissue paper base paper in the laminating step and then forming the folded tissue paper base paper into a folded bundle in the folding step. It may be performed in between.
  • FIG. 1 shows a stacking facility X1 according to this embodiment.
  • two primary raw rolls JR, JR which are also called jumbo rolls manufactured in the preceding paper making process, are set in the laminating equipment X1.
  • the primary raw rolls JR and JR are wound around tissue paper base papers S11 and S12 which are strip-shaped crepe papers made by a paper machine.
  • the basis weight of the tissue paper is 10 to 25 g / m 2 . It is preferably 11 to 20 g / m 2 , more preferably 12 to 17 g / m 2 .
  • the basic weight here is based on the measuring method of JISP8124 (1998).
  • the basis weight is in the range of 10 to 25 g / m 2 , it is possible to ensure the softness and strength that tissue paper can be made when 2-ply tissue paper is used, and in particular, each chemical solution in the primary chemical solution application step and the secondary chemical solution application step In the application amount of the chemical solution of the present invention in the application process, the effect of the present invention is exhibited.
  • the basis weight of tissue paper may be 10 to 25 g / m 2 according to a known paper making technique in the paper making process.
  • the tissue paper base paper is preferably a raw material pulp containing NBKP (conifer kraft pulp) and LBKP (hardwood kraft pulp).
  • the blending ratio JIS P 8120 is preferably such that NBKP: LBKP is 30:70 to 60:40.
  • each of the tissue paper base papers S11, S12 continuous in a strip shape fed from the set two primary raw rolls JR, JR is laminated in the ply means 51 along the continuous direction.
  • the primary chemical solution applying means 53 and the aqueous chemical solution are applied in the primary chemical solution applying step of applying the oil-based chemical solution to the laminated tissue paper base paper S2 after the ply means 51.
  • the secondary chemical solution applying means 40 in the secondary chemical solution applying step is provided in this order, and the primary chemical solution applying step and the secondary chemical solution applying step are sequentially performed in the process of transporting the laminated tissue paper S2. .
  • the oil-based chemical solution to be applied in the primary chemical solution application step contains oily components such as vegetable oil, mineral oil, collagen, liquid paraffin, and fatty acid amide derivatives as active ingredients, and is particularly emulsified with an emulsifier such as a surfactant. It is.
  • silicones such as polysiloxane and modified silicone are not desirable among oil components. When silicones are applied, they act on the tissue paper to generate “squeaks”, and therefore the present invention may impair the softness of the tissue paper.
  • the emulsifier is not limited and may be selected from known ones, but is selected in consideration that tissue paper is used for hygiene applications that touch the skin.
  • a suitable oily chemical is an emulsion of a substance selected from the group of mineral oil, collagen, liquid paraffin, and fatty acid amide derivatives, or a mixture of these emulsions. These are excellent in the effect of improving smoothness and softness and are easy to apply.
  • the proportion of oily components such as mineral oil in the emulsion is 5% by mass to 50% by mass. When the ratio of the oil component is less than 5% by mass, sufficient effects in the present invention are not exhibited. On the other hand, when the ratio of the oil component exceeds 50% by mass, the stickiness peculiar to the oil-based chemical solution is increased on the tissue paper surface, and the usability is deteriorated.
  • 0.20 to 0.75 g / m 2 of oil-based chemical solution is applied to one side of the laminated tissue paper base paper S2 in which the above-mentioned tissue paper base papers having a basis weight of 10 to 25 g / m 2 are laminated. More, preferred applied amount is 0.20 ⁇ 0.50g / m 2, more preferred applied amount is 0.20 ⁇ 0.45g / m 2.
  • the oil-based chemical solution may be applied to only one side of the laminated tissue paper, but it is desirable to apply it to both sides. When applied to both sides, the total amount of oil-based chemical solution applied to the laminated tissue paper base is 0.40 to 1.0 g / m 2 .
  • two gravure printing machines 53A and 53B are provided in the laminating equipment X1 to apply oil-based chemicals to one side and the other side of the laminated tissue paper S2. Since the application of the oil-based chemical solution can be applied uniformly on the entire surface of the tissue paper, application by a gravure method such as the above gravure printing machine is suitable. This is because the gravure method is particularly suitable for application of oil-based substances. Application is possible even with the flexographic method, but in the case of flexographic printing, it is inferior to the gravure method in terms of adjusting the coating amount and generating unevenness.
  • the amount of the oil-based chemical solution applied in the present invention is small as the amount of the chemical solution applied to the tissue paper base paper. In particular, even when only the oil-based chemical solution is applied to the tissue paper base with this applied amount, a sticky feeling is produced, but the smoothness of the tissue paper does not sufficiently improve.
  • the application of the oil-based chemical solution according to the present invention should also be referred to as pre-application that acts so that the softness and smoothness of the aqueous chemical solution can be felt more remarkably.
  • the amount of the oil-based chemical solution applied to one side is less than 0.20 g / m 2 , sufficient effects are not exhibited in relation to the basis weight of the tissue paper base and the application of the aqueous chemical solution of the present invention.
  • the laminated tissue paper base paper S2 coated with the oil-based chemical solution in the primary chemical solution applying unit 53 in the primary chemical solution applying step is transferred to the secondary chemical solution applying unit 40 in the subsequent secondary chemical solution applying step. It is guided and an aqueous chemical is applied.
  • the penetration of the aqueous chemical solution 20 into the tissue paper base is delayed by the oil-based chemical solution 10 present on the surface layer of the laminated tissue paper base paper S2.
  • This aqueous chemical solution is also referred to as a lotion chemical solution, and has a hygroscopic polyol as a main component.
  • the preferred components of the aqueous chemical solution are those containing 70 to 90% by weight of polyol, 5 to 15% by weight of water, and 0.01 to 10% by weight of functional chemicals.
  • the polyol include glycerin, diglycerin, propylene glycol, 1,3-butylene glycol, polyethylene glycol, sorbitol, glucose, xylitol, maltose, maltitol, mannitol, and trehalose.
  • a particularly preferred polyol is glycerin.
  • Functional chemicals are softening agents such as anionic surfactants, cationic surfactants and zwitterionic surfactants, hydrophilic polymers that assist the hygroscopicity of polyols such as glucomannan, and smoothness such as liquid paraffin. Oily ingredients to enhance, emulsifiers, preservatives, antifoaming agents and the like.
  • the aqueous chemical solution of the present invention may contain an oily component.
  • the oily component in the aqueous chemical solution need not be the same as the active ingredient of the oil-based chemical solution applied in the previous stage.
  • a laminated tissue paper S2 obtained by laminating the above-mentioned tissue paper having a basis weight of 10 to 25 g / m 2 , and laminated tissue paper to which an oil-based chemical solution is applied at 0.20 to 0.75 g / m 2 per side.
  • An aqueous chemical solution is further applied to the base paper in a total amount of 2.0 to 5.0 g / m 2 on both sides.
  • medical solution is provided from the surface provided with the oil-type chemical
  • the aqueous chemical solution can be applied from both surfaces or one surface. Whether the aqueous chemical solution is applied only from one side or from both sides, the applied amount of the aqueous chemical solution is 2.0 to 5.0 g / m 2 in total on both sides. If it is less than 2.0 g / m 2 , the moisture absorption effect is not sufficiently exhibited, and moist feeling and softness are not sufficiently exhibited. Moreover, when it exceeds 5.0 g / m ⁇ 2 >, a sticky feeling will be felt.
  • the laminated tissue paper base paper to which the aqueous chemical solution is applied is preliminarily provided with the oil-based chemical solution, and since the penetration of the aqueous chemical solution is slow, the aqueous system is applied to the surface when applied over 5.0 g / m 2. The time that the chemical solution stays excessively increases the risk of deteriorating operability such as transportability of the laminated tissue paper.
  • the application of the aqueous chemical solution to the laminated tissue paper S2 can be performed by flexographic printing, roll transfer, and spray coating, but it is particularly preferable to apply by spray coating.
  • the oil-based chemical solution is preliminarily applied to the laminated tissue paper base paper S2 to which the aqueous chemical solution is applied, the surface of the tissue paper base sheet is difficult to become familiar with the aqueous chemical solution.
  • a chemical solution is transferred by bringing a printing plate such as flexographic printing or roll transfer into contact with the paper surface, coating unevenness may occur during application.
  • spray coating since the chemical solution is sprayed on the entire paper surface in a non-contact manner, such coating unevenness hardly occurs.
  • Examples of the spray coating apparatus that performs spray coating include a one-fluid or two-fluid nozzle spray system apparatus and a rotor dampening spray system apparatus.
  • two spray coating apparatuses 40A and 40B are installed, and the aqueous chemical solution is applied by spraying from both surfaces of the laminated tissue paper base paper S2.
  • the aqueous chemical solution in the present invention it is desirable to apply the aqueous chemical solution in the present invention from both sides as shown in the figure, but it is not necessary to apply from both sides of the laminated tissue paper S2 as described above. Moreover, even if it is a case where it carries out from both surfaces, it is not necessary to give by equal amounts on each surface. Since the aqueous chemical solution penetrates into the tissue paper base after application, the aqueous chemical solution spreads over the entire tissue paper base until it becomes a product even if applied only from either side.
  • the permeation of the aqueous chemical solution is slowed by the application of the preceding oil-based chemical solution, and therefore, when a large amount of the aqueous chemical solution is applied to one surface, the chemical solution may accumulate on the paper surface. For this reason, it is desirable to apply the oil-based chemical from both sides, and it is desirable to apply the water-based chemical from both sides, and it is desirable to make the both sides substantially equal.
  • the laminated tissue paper base paper to which the oil-based chemical solution and the water-based chemical solution are applied in this order through the primary chemical solution applying step and the secondary chemical solution applying step is subjected to the folding process in the subsequent stage.
  • the equipment to perform it rolls up by the winding means 56 through the contact embossing means 54, the slit processing means 55, etc. suitably, and is set as the roll R.
  • the roll used for the folding equipment for performing the folding process is also referred to as a secondary raw roll R.
  • what is necessary is just to determine the slit space
  • a known folding facility such as a multi-stand type interfolder, a rotary type interfolder, or a pocket folding machine. Is done.
  • the bundle is stored in a storage box or the like in a packaging process subsequent to the folding process by a known method to obtain a tissue paper product.
  • stacking installation X1 was demonstrated, this invention is not limited to this form.
  • the secondary chemical solution application step may be performed in the folding facility. You may perform both a primary chemical
  • the oil-based chemical solution and the aqueous-based chemical solution may be applied to the laminated tissue paper base paper in this order in the application amounts defined in the present invention, and the application position is not necessarily limited.
  • Examples 1 to 3 and Comparative Examples 1 to 3 according to the present invention were prepared.
  • the tissue paper bases used in Examples 1 to 3 and Comparative Examples 1 to 3 had a basis weight of 14.0 g / m 2 and were the same.
  • Example 1 two sheets of this tissue paper base were laminated to form a laminated tissue paper base.
  • the size of one set was 206 mm in the vertical direction (MD direction) and 223 mm in the horizontal direction (CD direction).
  • 0.4 g / m 2 of an oil-based chemical solution was applied to both surfaces, and then 2.4 g / m 2 of an aqueous chemical solution was applied.
  • the oil-based chemical solution liquid paraffin obtained by emulsifying O / W type was used.
  • the viscosity of the oil-based chemical is 80 mPa ⁇ s at 40 ° C.
  • An aqueous chemical solution containing 85% by mass of glycerin and 15% by mass of water was used.
  • the viscosity of the aqueous chemical solution is 110 mPa ⁇ s at 40 ° C.
  • Example 2 applied 0.6 g / m 2 of an oil-based chemical solution to both sides of the same laminated tissue paper base sheet as in Example 1, and then applied an aqueous chemical solution of 3.2 g / m 2 . .
  • Example 3 0.7 g / m 2 of an oil-based chemical solution was applied to both sides of one set of the same laminated tissue paper base as in Example 1, followed by 4.8 g / m 2 of an aqueous chemical solution. .
  • Comparative Example 1 applied only an aqueous chemical without applying an oil based chemical.
  • the composition of the aqueous chemical solution used was the same as in Example 1, and the amount of active ingredient applied was the same as that in Example 1 in the amount of active ingredient.
  • the viscosity of each of the oil-based chemical solution and the water-based chemical solution was measured at a rotation speed of 60 rpm using a B-type viscometer.
  • Comparative Example 2 applied only an oil-based chemical without applying an aqueous chemical.
  • the composition of the oil-based chemical solution used was the same as that in Example 1, and the amount of the active ingredient was applied in the same amount as in Example 1 as the amount of the active ingredient.
  • Comparative Example 3 an aqueous chemical solution was applied first, followed by an oil chemical solution.
  • the composition of the water-based / oil-based chemical solution used was the same as in Example 1, and the application amount was the same as that of Example 1 in the amount of the active ingredient.
  • Comparative Example 3 it was confirmed that the sticky feeling peculiar to the oil-based chemical solution was generated and the feeling of use was deteriorated as in Comparative Example 2 to which the aqueous chemical solution was applied.
  • Example 1 to 3 and Comparative Example 1 there was no sticky feeling peculiar to oil-based chemicals.
  • the moisture content contained in the tissue paper was further measured and sensory evaluation was performed.
  • Example and Comparative Example 1 three sheets were prepared, and the moisture content was measured at eight locations for each sample.
  • the measuring method of moisture content is based on the measuring method of JIS P 8127.
  • the average value of the result of measuring 8 points for 3 sets of samples in each example was as follows. In Comparative Examples 2 and 3, the oil-based chemical solution was applied last, and the oil-based chemical solution was localized on the tissue paper surface. Therefore, the stickiness of the surface was increased, and the moisture content could not be measured.
  • Example 1 11.40%
  • Example 2 11.93%
  • Example 3 12.21% Comparative Example 1: 9.95%
  • the Example according to the present invention has a moisture content of 1.45% or more higher than that of Comparative Example 1.
  • the oil-based chemical solution has little moisture absorption action and does not increase the moisture taken into the paper.
  • the moisture content of the example is higher than the comparative example. It became. That is, the moisture content in the tissue paper can be increased by applying a small amount of oil-based chemical before applying the aqueous-based chemical.
  • the improvement of moisture content increases moist feeling and softness. In addition, there was almost no stickiness due to the presence of the oil-based chemical solution, and the smoothness of the surface was improved.
  • Example 1 the smoothness is 5.4 points, the softness is 5.0 points, the moist feeling is 4.7 points, and the smoothness is 5. 8 points, softness 5.3 points, moist feeling 5.1 points, smoothness 6.3 points, softness 5.6 points, moist feeling 5.5 points in Example 3, comparison Compared with Example 1, the sensory evaluation values of Examples 1 to 3 are all improved.
  • Comparative Example 2 and Comparative Example 3 it was confirmed that a sticky feeling peculiar to oil-based chemicals was generated on the tissue paper surface, and the usability was deteriorated.
  • the moist feeling, softness, and smoothness of tissue-coated tissue paper can be further enhanced.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Sanitary Thin Papers (AREA)
  • Paper (AREA)

Abstract

Le problème décrit par la présente invention est d'améliorer davantage la souplesse du papier mince auquel un liquide chimique est appliqué. Le problème est résolu par un procédé de fabrication de papier mince comprenant : une étape d'application de liquide chimique primaire pour appliquer un liquide chimique à base d'huile dans une quantité de 0,20 à 0,75 g/2 par côté sur au moins un côté d'un stratifié de feuille de base de papier mince obtenu par stratification de deux feuilles de base de papier mince ayant chacune un grammage de 10 à 25 g/m2 ; et une étape d'application de liquide chimique secondaire pour appliquer un liquide chimique à base d'eau dans une quantité totale de 2,0-5,0 g/m2 dans les côtés, sur le stratifié de feuille de base de papier mince auquel est appliqué le liquide chimique à base d'huile à l'étape d'application de liquide chimique primaire, à partir du côté du stratifié de feuille de base de papier mince sur lequel le liquide chimique à base d'huile a été appliqué.
PCT/JP2017/000530 2016-03-31 2017-01-11 Procédé de fabrication de papier mince WO2017168931A1 (fr)

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JP2016-073200 2016-03-31
JP2016073200A JP6310493B2 (ja) 2016-03-31 2016-03-31 ティシュペーパーの製造方法

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Cited By (4)

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US11274398B2 (en) * 2018-02-28 2022-03-15 Daio Paper Corporation Tissue paper
US11280050B2 (en) * 2018-02-28 2022-03-22 Daio Paper Corporation Tissue paper
WO2022075267A1 (fr) * 2020-10-06 2022-04-14 大王製紙株式会社 Procédé de fabrication de papier de soie et procédé de fabrication d'un produit en papier de soie
CN115352184A (zh) * 2022-08-16 2022-11-18 亚青永葆生活用纸(苏州)有限公司 一种纸巾纸彩色印刷及保湿液添加同步成型工艺

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KR102563251B1 (ko) * 2020-11-05 2023-08-07 주식회사 쌍용씨앤비 보습티슈 도포 시스템

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JP2008245780A (ja) * 2007-03-29 2008-10-16 Oji Nepia Kk ローションペーパーの製造方法及び製造装置
JP2012170817A (ja) * 2011-09-15 2012-09-10 Daio Paper Corp ティシュペーパー製品の製造方法及びティシュペーパー製品
JP2014194092A (ja) * 2013-03-28 2014-10-09 Nippon Paper Crecia Co Ltd 衛生薄葉紙の製造方法及び製造装置
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11274398B2 (en) * 2018-02-28 2022-03-15 Daio Paper Corporation Tissue paper
US11280050B2 (en) * 2018-02-28 2022-03-22 Daio Paper Corporation Tissue paper
WO2022075267A1 (fr) * 2020-10-06 2022-04-14 大王製紙株式会社 Procédé de fabrication de papier de soie et procédé de fabrication d'un produit en papier de soie
JP7520677B2 (ja) 2020-10-06 2024-07-23 大王製紙株式会社 ティシュペーパーの製造方法及びティシュペーパー製品の製造方法
CN115352184A (zh) * 2022-08-16 2022-11-18 亚青永葆生活用纸(苏州)有限公司 一种纸巾纸彩色印刷及保湿液添加同步成型工艺

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