JP5270206B2 - Multi-layer paper with suede appearance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper or hardboard made by multilayer-papermaking, having suede-like appearance, also having the surface of the paper or the hardboard exhibiting a touch feeling different from paper while being a paper product, capable of imparting high-class impression to a shopping bag or a cardboard case, and exhibiting high slip-preventing properties. <P>SOLUTION: The paper or hardboard made by multilayer-papermaking, comprising a base paper formed out of at least three or more paper layers of a surface layer, an intermediate layer and a back layer, and having a colored layer in the layer forming the surface layer of the base paper is obtained by coating a water-dispersed resin containing resin particles at least on one surface of the surface layer of the colored layer, and drying the coated layer to afford the suede-like touch feeling. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a multilayer paper having a suede-like appearance, a suede-like feel and excellent cosmetics.

  Corrugated cardboard used as a product package is manufactured by directly printing an appropriate pattern or pattern on paper or paperboard. Recently, there has been a tendency for corrugated cardboard to have a high-class feeling, and as a result, not only the appearance but also the tactile feel has been demanded to have a good quality or a different one.

  One of high-quality paper or paperboard has a suede appearance. Suede tone means that the back of the leather is brushed with sandpaper in a velvet shape (a soft fabric with fluff on the surface) and the hair is raised. In the prior art, there is a method for producing a material having the following suede appearance.

  That is, for example, in Patent Document 1, an aqueous resin composition mainly composed of a binder composed of an acrylate copolymer emulsion containing a heat-sensitive agent and a foam stabilizer is stirred with a high-speed propeller mixer, for example, to generate foam. After the surface of the substrate is stamped or coated to form a composition layer, the composition layer is heated in a wet state, gelled and dried in a foamed state, so that it is porous, light and has a good texture A three-dimensional pattern layer is obtained. This three-dimensional pattern layer may be embossed by an embossing roll or the like, or a suede-like three-dimensional pattern may be formed by sanding.

  However, in the invention described in Patent Document 1, it is necessary to adjust the viscosity and bubble (foaming) with a stirrer at the stage of adjusting the aqueous resin composition to be applied or screen-printed, so as to adjust the coating liquid. Equipment and manufacturing time are required. In addition, in order to obtain a suede-like appearance, the aqueous resin composition is gelled after coating, in the examples, heat drying is performed for 10 to 15 minutes, and the obtained three-dimensional resin film surface is sanded with sandpaper. As a result, there is a problem that the operability is poor and the manufacturing time is increased and the manufacturing cost is increased.

  Further, for example, in Patent Document 2, in a decorative material in which at least one of an intermediate layer and a surface layer of a base material includes an expanded layer and a skin layer, a microcapsule thermally expanded in a polymer is included in the expanded layer. Dispersed, and the skin layer contains at least one of urethane beads, silicon beads, and silicon oil, so that the surface irregularities have a fine and fine appearance, and also have a soft feel and are matte. A decorative material having a toned and moist suede-like outer surface and a method for manufacturing the same have been proposed.

  However, the decorative material described in Patent Document 2 is a method in which a thermally expandable microcapsule is dispersedly coated on the surface of paper, and a coating liquid containing at least one of urethane beads, silicon beads, and silicone oil is applied. However, it is necessary for such coating that the paint used as the primer is diluted with an organic solvent, and it is essential that the coating equipment is explosion-proof. In addition, due to VOC regulations accompanying the Air Pollution Control Law, there is a problem that factory equipment is required to meet the VOC emission standards, and equipment costs are incurred. In addition, since suede-like paper is processed by bag-making companies, printing companies, and cardboard companies, there may be no problems in terms of operability and transportability due to slipping of paper or paperboard. .

  In Patent Document 3, a paint film containing a bead pigment is applied to a plastic auxiliary film having heat resistance and solvent resistance to form a coating film. A packaging paper that maintains a suede-like appearance by laminating on paper suitable for packaging has been proposed.

  However, the packaging paper described in Patent Document 3 requires secondary processing for bonding a suede-like film to paper or paperboard, resulting in an increase in manufacturing cost due to an increase in the number of steps and manufacturing time. Moreover, since it is difficult to separate paper and film from a film-bonded product, there is a problem that it is difficult to recycle as waste paper. Furthermore, a paint containing a pigment particle in the form of a bead pigment coated with a synthetic resin was used and applied directly to paper to obtain a suede-like appearance. In the column, “The coating film must be at least 10 μm, generally 25 μm or more, and coating such a thick film causes unevenness because the amount of paint absorbed depends on the fiber density difference of the paper. As can be seen from the description that `` there is no beautiful appearance, '' the conventional technology provides a suede-like appearance by applying a coating solution containing a synthetic resin in the form of grains to paper. It was impossible to produce paper with.

Japanese Patent Publication No. 8-30307 Japanese Patent No. 3778663 JP-A-4-144743

  The present invention has been made in view of the above-described circumstances, and the object of the present invention is a paper product, but has a suede appearance and a feeling of touch that are different from general paper, and is high. It is to provide a multilayer paper having a suede-like appearance and also having an anti-slip property.

The object of the present invention is that a base paper is constituted by at least three paper layers of a surface layer, an intermediate layer, and a back layer, and at least the surface of the surface layer is averaged on the surface of the multilayer paper having at least the surface layer as a colored layer. A water-dispersed resin containing water-dispersed urethane resin particles having a particle diameter of 4 to 20 μm is applied in a weight solid content of 0.8 to 12.0 g / m ² per side to form a coating layer. This is achieved by providing a multilayer paper having a suede-like appearance, characterized in that the sliding angle measured according to JIS-P8147 (1994) is 19 degrees or more.

The above-described object of the present invention, a multilayer Extract which has the appearance of suede, wherein J IS-B0601 (1994) surface roughness height value determined in accordance with the test of (Ry) is less than 21μm This is achieved more effectively by providing paper.

Furthermore, the above object of the present invention is a suede characterized in that the density measured according to the thickness and density test method of JIS-P8118 (1998) is 0.35 to 0.93 g / cm ^3. This is achieved more effectively by providing a multilayer paper having a toned appearance.

  The base paper is composed of at least three paper layers, a surface layer, an intermediate layer, and a back layer, at least the surface layer is a colored layer, and at least the surface of the surface layer is coated with an aqueous dispersion resin containing resin particles. By forming the coating layer, it is possible to produce a multi-layered paper having a suede-like appearance and hand feeling and excellent in cosmetics at low cost, and formed using the multi-layered paper according to the present invention. A high-quality impression can be given to a shopping bag, a cardboard case, and the like.

  Hereinafter, a multilayer paper having a suede appearance according to the present invention will be described in detail. The multi-layered paper having a suede appearance according to the present invention is not limited to the following embodiments, and can be changed as appropriate without departing from the scope of the claims. .

  The multilayer paper having a suede-like appearance according to the present invention (hereinafter referred to as “the present multilayer paper”) has a base paper composed of three paper layers: a surface layer, a middle layer, and a back layer. In this base paper, at least the surface layer is colored to form a colored layer. In addition, this multilayer paper gives a suede feel by applying a water-dispersed resin containing resin particles to the surface of the surface layer, which is at least a colored layer, to form a coating layer. be able to.

  Raw material pulp used for the base paper of this multilayer paper is hardwood bleached kraft pulp (LBKP), softwood bleached kraft pulp (NBKP), hardwood unbleached kraft pulp (LUKP), softwood unbleached kraft pulp (NUKP), Pulp and chips chemically treated with wood fibers such as coniferous broad-leaved sulfite pulp and coniferous sulfite pulp, or non-wood fibers such as kenaf, hemp, and firewood, which are fiber materials other than wood, are used as the main raw materials. Pulp, which has been mechanically pulped from treated pulp and chips, chemi-ground pulp, which has been mechanically pulped with chemicals added to wood or chips, and digesters until chips are softened, then refiner, etc. Virgin pulp such as semi-chemical pulp and kraft pulp, semi-chemical pulp, enzyme Office waste paper containing white pulp is deinked, bleached pulp, milk pack waste paper, high quality cut-off waste paper, coat cut-off waste paper, upper white, extra white, medium white, etc., unprinted, street ticket, new stage, newspaper, craft envelope For example, recovered pulp obtained from imitation and magazine waste paper can be used. In addition, there is an advantage that an environmental load is reduced when much waste paper pulp is used.

  In the multilayer paper, the surface layer of the raw material pulp is mixed with a colorant to form a colored layer, and the surface of the multilayer paper is colored. The present multi-layer paper can achieve the desired purpose by blending a colorant in at least the raw material pulp of the surface layer, but it can be achieved by blending the colorant in the raw pulp of the middle layer or the back layer. And / or the back layer may be a colored layer.

  As the colorant, a basic dye having a beautiful color and a high color density can be used together with an anionic direct dye or a cationic direct dye. In addition, when two or more of these dyes are added, the order of addition of the dyes is that an anionic direct dye is added at an early stage, a pH is adjusted by adding a sulfuric acid band, and then a basic dye and necessary for it. It is preferable to add a cationic direct dye having a high speed dyeing property near the inlet, high exhaustibility, good water fastness and good fastness to sunlight. Furthermore, by adding a pigment, it is possible to realize coloring with a deeper color and higher weather resistance. Various known pigments can be used as the pigment.

  The raw material pulp used for the surface layer is preferably adjusted to a freeness of 250 to 400 ml, particularly 250 to 350 ml. When the freeness of the surface layer is less than 250 ml, the fibers are likely to become dense, resulting in poor dewatering of the multilayer paper. On the other hand, when the amount exceeds 400 ml, the fibers are likely to become sparse, resulting in poor texture of the multilayer paper. That is, the cosmetic properties of the multi-layered paper are deteriorated.

Pulp used in the middle layer, it is preferable to adjust the freeness 250～450Ml, especially two hundred and fifty to forty 0 m l. If the freeness of the middle layer is less than 250 ml, the fibers are likely to become dense, resulting in poor dewatering of the multilayer paper and poor drying. On the other hand, if the freeness of the middle layer exceeds 450 ml, the fibers tend to become sparse, resulting in poor texture of the multilayer paper.

  Moreover, it is preferable that the raw material pulp used for a back layer adjusts freeness to 250-450 ml, especially 250-400 ml. If the freeness of the back layer is less than 250 ml, the fibers are likely to become dense, and moisture in the paper is difficult to escape to the back surface during drying after the resin is applied. On the contrary, if the freeness of the back layer exceeds 450 ml, the difference between the freeness of the raw material pulp of the surface layer of the multilayer paper and the freeness of the raw material pulp of the back layer becomes large, and curling occurs after drying.

  In addition, as a method for adjusting the freeness of the raw material pulp, a known beating machine such as a single disc refiner (SDR), a double disc refiner (DDR), or a conical refiner can be used.

  In addition, in this specification, freeness is based on the freeness test method of a JIS-P8121 (1995) pulp after disintegrating a sample with a standard disintegrator based on the JIS-P8220 (1998) disaggregation method. This is a value measured by a Canadian standard freeness tester.

  In the base paper, fillers, yield improvers, freeness improvers, paper strength enhancers, fixing agents, fluorescent brighteners, pH adjusters, antifoaming agents, pitch control agents, slime are added as necessary. Internal additives for papermaking such as a control agent, a bulking agent, and a foaming agent can be appropriately blended.

The basis weight of the base paper of the present multi-made paper is not particularly limited, usually 120~320g / ^{m 2,} preferably 120~280g / ^{m 2.} When the basis weight is less than 120 g / m ² , it is difficult to ensure the strength when the multilayer paper is processed into corrugated base paper. Conversely, if the basis weight exceeds 320 g / m ² , not only will the quality be excessive, but also the manufacturing cost will be high. In addition, the basic weight in this specification is the value measured based on the basic weight measuring method of JIS-P8124 (1998).

In addition, in making the multilayer paper, a known sizing agent such as an acidic rosin sizing agent, a neutral rosin sizing agent, or an alkyl ketene dimer may be internally added in order to adjust the water absorption of the resin into the base paper. According to JIS-P8140 (1998), the cobb sizing degree of the paper before coating the resin (hereinafter referred to as “base paper before coating”) is 15 to 80 g / m with a contact time of 120 seconds. ² and preferably adjusted to ²⁰ to 50 g / m ² . When the cobb sizing degree of the base paper before coating is less than 15 g / m ² , it is impossible to uniformly coat the resin described later in the subsequent resin coating process. On the other hand, if the cobb sizing degree of the base paper before coating exceeds 80 g / m ² , the amount of resin to be applied penetrates into the inside of the base paper, and the desired suede appearance and feel of the present application can be obtained. I can't.

Furthermore, in the production of the base paper of the present multilayer paper, the density of the base paper before coating is preferably 0.35 to 0.93 g / cm ³ . If the density of the base paper before coating is less than 0.35 g / cm ³ , the amount of the resin soaked into the base paper is increased, so that the desired suede feel of the present application cannot be obtained. On the other hand, when the density of the base paper before coating exceeds 0.93 g / cm ³ , the adsorption strength of the resin to the base paper is weakened, the surface strength is lowered, and the coating layer is easily peeled off. In addition, as a method for adjusting the density of the base paper before coating, for example, the processing conditions such as the pressure of a pressure device such as a Yankee dryer, a super calender, a gloss calender, and a soft calender, a heating temperature, and the number of nips are appropriately adjusted. .

  In addition, the papermaking method of the base paper of this multilayer papermaking is not particularly limited, and any of an acidic papermaking method, a neutral papermaking method, and an alkaline papermaking method may be used. Also, the paper machine is not particularly limited. For example, a long paper machine, a twin wire paper machine, a circular paper machine, a short mesh combination paper machine, a Yankee paper machine, an inclined wire paper machine, etc. Various known paper machines can be used as appropriate.

The multilayer paper made by coloring the surface layer as described above has an aqueous dispersion resin containing resin particles on the surface of at least the colored layer of the base paper in a weight solid content of 0.9 to 12. A coating layer is formed by coating 0.0 g / m ² (dry) and drying. That is, at least on the surface of the base paper, in the coating step after the dryer of the paper machine, a resin is applied or applied to provide a coating layer, and then pressed and dried while pressing the coating layer on the dryer. Thereby, a coating layer comes to show a suede-like external appearance and a touch feeling. Thereby, a suede-like appearance and a feeling of touch can be imparted to the multilayer paper, and the cosmetics are excellent.

  As the resin used for the multilayer paper, generally known water dispersion resins such as urethane, acrylic, polyester, latex, vinyl alcohol and alkyl can be used. It is particularly preferable to use a resin.

The coating amount of such a water-dispersed resin is 0.9 to 12.0 g / m ² (dry), preferably 2.0 to 8.0 g / m ² (dry) in terms of weight solids. When the coating amount is less than 0.9 g / m ² (dry), the desired suede-like appearance and feel of the present application cannot be obtained, and the slip angle is set to 19 degrees or more desired by the present application. I can't. On the other hand, when the coating amount exceeds 12.0 g / m ² (dry), there arises a problem that the paper is not sufficiently dried in the drying step after coating the resin.

  The resin particles contained in the resin are those having an average particle diameter of 4 to 20 μm, preferably 8 to 20 μm. As a result, the slip angle (hereinafter simply referred to as “slip angle”) measured in accordance with JIS-P8147 (1994) “Inclination method of friction coefficient test method for paper and paperboard” of the present multilayer paper. It can be 19 degrees or more. If the average particle size is less than 4 μm, the particle size is small and the coated surface is less likely to have a rough feel, making it difficult to obtain the desired suede appearance and feel of the present invention. . On the contrary, if the average particle diameter is more than 20 μm, the moist and smooth suede tone is not obtained.

  As the above-mentioned water-dispersed resin coating method, either coating by an on-machine coating facility or coating by an off-machine coating facility may be used. In view of cost and production efficiency, it is preferable to perform coating on-machine. Examples of such a coating apparatus include a calendar, a blade coater, an air knife coater, a roll coater, a reverse roll coater, a bar coater, a curtain coater, a slot die coater, a gravure coater, a champlex coater, a brush coater, a slide bead coater, Generally known coating apparatuses such as a two-roll or metering blade type size press coater, a bill blade coater, a short dwell coater, and a gate roll coater can be used.

  Further, the slip angle of the multilayer paper is preferably 19 degrees or more. If the sliding angle of the multilayer paper is less than 19 degrees, the cardboard case may collapse when the multilayer paper is processed into, for example, a cardboard case. However, if the slip angle of the multi-layer paper is too high, when processing the multi-layer paper, it may cause sheet clogging in a pasting machine such as a corrugator or a box making machine such as a flexo folder gluer. From the standpoint of preventing the collapse of the corrugated cardboard case in which the multilayer paper is processed, the slip angle is preferably in the range of 19 to 55 degrees because the quality is excessive.

  Further, the multilayer paper formed as described above is a high / low value (Ry) (hereinafter simply referred to as “roughness”) measured in accordance with the surface roughness test of JIS-B0601 (1994). ) Is 21 μm or less, and practically 20 μm or less is preferable. When the roughness exceeds 21 μm, when gravure printing is performed on the multilayer paper, ink smearing occurs particularly at the halftone dots, or reproducibility is poor, and the gravure printing suitability is deteriorated. .

  In addition, this multi-layer paper is JAPAN TAPPI No. The surface strength (hereinafter referred to as “surface strength”) measured in accordance with the surface strength test method of No. 1 wax is 14 A or more. When the surface strength is less than 14A, for example, when producing a cardboard case using this multilayer paper, the surface layer may peel off at the gluer joint, and printing using high viscosity ink such as offset printing The picking problem occurs. However, even if the surface strength exceeds 23A, it is excessive quality in normal printability, so 14 to 23A is practically preferable.

Furthermore, this multilayer paper has a density of 0.35 to 0.93 g / cm ³ according to the thickness and density test method of JIS-P8118 (1998). When the density is less than 0.35 g / cm ³ , the multilayer paper cannot secure strength as a corrugated base paper. On the other hand, when the density exceeds 0.93 g / cm ³ , the paper becomes too weak and the compression strength becomes weak.

  The multilayer paper formed as described above has an excellent suede-like appearance and feel, is excellent in cosmetics, and is also excellent in anti-slip properties. Therefore, the multilayer paper is formed using the multilayer paper. A high-quality impression can be given to shopping bags and cardboard cases.

  The multilayer paper according to the present invention has been described for the case where the paper layer is composed of three layers. However, the middle layer may be composed of two or more layers, and may be composed of four or more paper layers. Moreover, although the case where resin was coated on the surface of this multilayer paper was demonstrated, you may coat on the back surface or front and back.

  In order to confirm the effect of this multilayer paper, the following various samples were produced and the test which evaluates the quality with respect to each of these samples was done. In addition, in a present Example, the numerical value which shows a mixing | blending, a density | concentration, etc. is a numerical value of solid content or the mass reference | standard of an active ingredient. Moreover, since the pulp, chemical | medical agent, etc. which are shown in a present Example are only examples, it cannot be overemphasized that this invention is not restrict | limited by these Examples, and can be selected suitably.

  35 types of multi-layer papers (referred to as “Example 1” to “Example 35”) according to the present invention and one type of paperboard for comparison with these Examples 1 to 35 (This is referred to as “Comparative Example 1”) was fabricated in the configuration shown in Table 1.

[Example 1]
(Creation of base paper)
<Surface>
Using 100% by mass of hardwood bleached kraft pulp (LBKP), the raw pulp was adjusted with a double disc refiner so that the freeness (CSF) was 300 ml, and a raw pulp slurry for the surface layer was prepared. A colorant, a fixing agent, a sizing agent, and a paper strength enhancer were added to the raw material raw material slurry. Anionic direct dyes and pigments were used as colorants. Further, a sulfuric acid band was used as a fixing agent, and 3.0% by mass was added. Further, an acidic rosin sizing agent was used as a sizing agent, and 0.75% by mass was added, and further a paper strength enhancer was added by 0.4% by mass.
<Middle layer>
The raw pulp was adjusted using a double disc refiner so that the freeness (CSF) was 350 ml using 100% by weight of the waste paper pulp that had been cut from the coat, and a raw pulp slurry for the middle layer was prepared. A fixing agent, a sizing agent, and a paper strength enhancer were added to the intermediate layer raw material pulp slurry. A sulfuric acid band was used as a fixing agent, and 0.4% by mass was added. Further, an acidic rosin sizing agent was used as a sizing agent, and 0.75% by mass was added, and further a paper strength enhancer was added by 0.4% by mass.
<Back layer>
The raw pulp was adjusted so that the freeness (CSF) was 400 ml with a double disc refiner using 100% by mass of the waste paper waste paper pulp, and the raw pulp slurry for the back layer was prepared. A fixing agent and a sizing agent were added to the raw material pulp slurry for the back layer. A sulfuric acid band was used as a fixing agent, and 0.4% by mass was added. Further, an acidic rosin sizing agent was used as a sizing agent, and 0.75% by mass was added, and further a paper strength enhancer was added by 0.4% by mass.

Using the raw material pulp slurries of each of the surface layer, the middle layer, and the back layer, the surface pulp, the 3 layers of the middle layer, and the back layer of the raw material pulp slurry were combined by a circular mesh 5-layer paper machine, and the basis weight was 170 g / multi-made paper having a colored layer consisting of base paper a five-layer structure of the m ² (the board) was making.
(Resin adjustment)
First, as a water-dispersed resin containing resin particles, a die plastic coat SCW-6734 clear manufactured by Dainichi Seika Kogyo Co., Ltd. was used. This resin is applied to the surface of the surface layer of the base paper, which is a colored layer, so that the coating amount is 0.8 g / m ² (dry) as a solid content in the coating part after the pre-dryer. The resultant was formed and pressure-dried with a mirror-finished dryer to form a suede tone layer on the surface of the surface of the base paper to obtain a multilayer paper (Example 1).

  Examples 2 to 9 Multilayer papers obtained in the same manner as in Example 1 except that the amount of resin applied to the surface of the base paper was changed as shown in Table 1.

  (Examples 9 to 15) Multilayer paper obtained in the same manner as in Example 6 except that the average particle diameter of the resin particles contained in the resin applied to the surface of the base paper was changed as shown in Table 1. paper.

  (Examples 15 to 23) Multilayer papers obtained in the same manner as in Example 7 except that the Cobb sizing degree of the surface layer on which the resin of the base paper was applied was changed as shown in Table 1.

  (Examples 24 to 30) Multilayer papers obtained in the same manner as in Example 6 except that the density of the base paper was changed as shown in Table 1.

(Examples 31 to 35) Multilayer paper obtained in the same manner as in Example 7 except that the type of water-dispersed resin and / or the type of resin particles were changed as shown in Table 1. However, in Table 1 and Table 2 described later, Examples 31 to 35 are read as Reference Examples 31 to 35.

  (Comparative Example 1) A multilayer paper obtained in the same manner as in Example 7 except that nothing was applied to the base paper.

In Table 1, “surface cobb sizing degree (g / m ² )” is based on JIS-P8140 (1998), the water absorption of the base paper before application of the resin (base paper before coating). Measured value.

Further, “density (g / cm ³ )” in Table 1 is the density of the base paper before the resin is applied, and conforms to the thickness and density test method of JIS-P8118 (1998). Measured value.

  Quality tests were conducted on all the examples and comparative examples, that is, evaluation tests were conducted on the slip angle, surface strength, roughness, etc. of the multilayer paper (all layers). The results are shown in Table 2. This quality evaluation was performed under environmental conditions of a temperature of 23 ± 2 ° C. and a humidity of 50 ± 2% in accordance with JIS-P8111. Moreover, the tactile sensation and coating properties of the obtained multilayer paper were evaluated, and a comprehensive evaluation was performed together with the evaluation test results.

  “Slip angle (degrees)” in Table 2 is a measure of the slipperiness of the multi-layered paper according to each sample in accordance with the inclination method of the friction coefficient test method for paper and paperboard of JIS-P8147 (1994). It is the value.

  “Surface strength (A)” means the strength of the surface of the multilayer paper according to each sample, JAPAN TAPPI No. This is a value measured in accordance with the surface strength test method using No. 1 wax.

  “Roughness (μm)” is a value obtained by measuring the roughness of the surface of the multilayer paper according to each sample in accordance with the surface roughness test of JIS-B0601 (1994).

“Post-coating density (g / cm ³ )” means the density of the multi-layer paper according to each sample after coating the resin on the surface of the base paper with the thickness of JIS-P8118 (1998). And a value measured according to the density test method.

The “tactile sensation” is a sensory evaluation of whether or not the appearance and feel of the multi-layered paper that is each obtained sample are suede. The evaluation criteria were as follows.
(Double-circle): It is a particularly excellent suede tone.
○: Excellent suede tone.
Δ: Suede tone.
X: Not suede-like.

In addition, “coating property” is a visual evaluation of whether coating can be performed uniformly and uniformly when a resin is applied to the surface of at least the surface layer of the base paper. The evaluation criteria are as follows: It was.
○: Uniform coating is possible without unevenness.
Δ: Slightly uneven, but practically no problem
X: There is unevenness and coating cannot be performed uniformly.

Furthermore, “comprehensive evaluation” means comprehensively judging the quality, production cost, and processing suitability of the base paper after application of the resin, such as the feel of the base paper, the cosmetics, the coatability, and the slip resistance. It was evaluated as a comprehensive evaluation.
A: Excellent in suede-like appearance and feel, and excellent in quality and processability.
◯: Excellent in suede appearance and feel, and has quality and processability.
Δ: Suede-like appearance and feel, but slightly inferior in terms of quality and processability.
X: It does not have a suede appearance and a touch feeling, and is inferior from the viewpoint of quality and processing suitability.

As can be seen from Table 2, the multilayer paper having a suede-like appearance according to the present invention, that is, the multilayer paper according to Examples 1 to 30, has a suede-like appearance and a touch feeling, and is a cosmetic product. It can be seen that a multi-layered paper which is excellent in processing properties and has a high anti-slip property and is excellent in processing suitability can be produced at low cost.

Claims (3)

The base paper is composed of at least three paper layers, a surface layer, an intermediate layer, and a back layer, and at least a multilayer paper having the surface layer as a colored layer,
At least the surface of the surface layer is coated with 0.8 to 12.0 g / m ^{2 of} water-dispersed resin containing water-dispersed urethane resin particles having an average particle size of 4 to 20 μm per side in terms of weight solids. A multilayer paper having a suede-like appearance, wherein a coating layer is formed and a sliding angle measured according to JIS-P8147 (1994) is 19 degrees or more. The multilayer paper having a suede-like appearance according to claim 1 , wherein the height (Ry) measured in accordance with JIS-B0601 (1994) is 21 μm or less. The multilayer paper having a suede appearance according to claim 1 or 2, wherein the density measured according to JIS-P8118 (1998) is 0.35 to 0.93 g / cm ^3. paper.