JPS61225378A - Composition for artificial leather - Google Patents

Abstract

PURPOSE:A composition that contains a specific resin emulsion and a fibrous substance, thus giving an artificial leather similar to natural leather with high durability, high resistance to water and washing, good coating operability, high resistance to coldness and dryness, when it is backed to the fibrous base material. CONSTITUTION:The objective composition contains a resin emulsion selected from polyacrylate emulsions, polyurethane emulsions or their mixture and 10-50, preferably 30-50pts.wt., per 100pts.wt. of the solid of the emulsion, of a fibrous substance, preferably powdery hides of animals such as horses or cattles of 5-200, preferably 10-50 mesh sizes. The composition is adjusted in its pH to 5-9, preferably to 6-8 and coated on a sheet of releasing paper or of a fibrous base material in an amount of 500-1,500, preferably 750-1,500g/m<2>, predried and baked to give the objective artificial leather.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a synthetic leather composition that backs a fiber base material to form a synthetic leather-like backing surface. Specifically, the present invention relates to a composition that forms a backing layer with a pseudo-leather appearance by being coated on the other side of a woven fabric, knitted fabric, non-woven fabric, etc. in which fibers are densely grown on one side by means such as raising or tufting, and further dried.

[Conventional technology]

BACKGROUND ART Conventionally, buffing of a composition containing a resin emulsion or rubber latex as an adhesive component on the back side of a fibrous base material such as a woven fabric, pile woven fabric, or knitted fabric has been widely practiced. However, the purpose of this is to bond piles, improve dimensional stability, or adjust texture, as seen in tufted carpets, vehicle seat cloths, etc., and to increase product value. There was no purpose of imparting a unique appearance, and no appearance suitable for such purpose could be obtained.

[Problem that the invention seeks to solve]

On the other hand, rugs, fur coats, etc. made of natural leather have been commercially available, but they cannot be washed with al-Water.
It has drawbacks such as easy growth of mold, (C1 size is limited), and (d) high price.

In order to obtain a textile product that eliminates the above-mentioned drawbacks of natural leather, the present invention forms a highly durable film that has an appearance very similar to natural leather by simply backing it onto a textile base material and drying it. The present invention provides a composition for use in simulated leather.

[Means for solving problems]

The present inventors have conducted extensive research to provide artificial leather that does not have the above-mentioned drawbacks of natural leather and has an appearance and feel that closely resembles natural leather by applying banking processing to the fiber base material. The inventors have discovered that a simulated leather composition having the following composition is effective for this purpose, and have arrived at the present invention.

That is, the present invention contains at least 7100 parts by weight (in terms of solid content) of one or more resin emulsions selected from polyacrylic acid ester emulsions and polyurethane emulsions and 10 to 50 parts by weight of fibrous substances. This can be summarized as a synthetic leather composition characterized by:

[Structure of the invention]

When applying the synthetic leather composition of the present invention, the fiber base material used is a woven fabric, knitted fabric, non-woven fabric, etc. in which fibers are densely grown on one side of natural fibers or synthetic fibers by means such as raising or tufting. . Natural fibers include wool, silk, cotton, etc., and chemical fibers include polyamide fibers, polyester fibers, polyacrylonitrile fibers, polyvinylidene chloride fibers, polyvinyl chloride fibers, rayon, and the like. It may be applied directly to such a base material, or it may be made separately on release paper and bonded together.

The resin emulsion used in the present invention has a
From the viewpoint of cold resistance and durability, it must be a polyacrylate emulsion or a polyurethane emulsion, singly or in a mixture.

When these emulsions are mixed and used, they may be mixed in a ratio of 9 to 1:1 to 9 (weight ratio).

Further, the Tg (glass transition point) of these emulsions is preferably 0 to -40°C. If it is outside these ranges, the softness of fake leather cannot be obtained.

The polyacrylic ester emulsion used in the present invention is a resin emulsion obtained by emulsion polymerization of one or more acrylic esters and methacrylic esters in an aqueous medium, and further includes carboxyl groups, N-methylol groups, and epoxy esters. A monomer for introducing a functional group such as a group or a nitrile group may be copolymerized.

Such polyacrylic acid ester emulsions include, for example, (1) an acrylic acid alkyl ester having an ester alkyl group having 1 to 18 carbon atoms, a methacrylic acid alkyl ester having an ester alkyl group having 4 to 18 carbon atoms, and a methacrylic acid alkyl ester having an ester alkyl group having 4 to 18 carbon atoms; 30 to 99.9% by weight of at least one monomer selected from conjugated diolefins (
2) 0.1 to 10% by weight of at least one α,β-monoethylenically unsaturated carboxylic acid, and (3) at least one other α,β-monoethylene copolymerizable with the above monomers. A polyacrylic acid ester emulsion resin composition for imitation leather is obtained by emulsion copolymerizing 0 to 69.9% by weight of the sexually unsaturated monomer.

Acrylic acid alkyl ester having an ester alkyl group having 1 to 18 carbon atoms, methacrylic acid alkyl ester having an ester alkyl group having 4 to 18 carbon atoms, and carbon Typical conjugated diolefins having 4 to 6 atoms include ethyl acrylate, n-propyl acrylate, isopropyl acrylate, n-butyl acrylate, isobutyl acrylate, n-octyl acrylate, and acrylic. 2-ethylhexyl acid, decyl acrylate, octadecyl acrylate; n-butyl methacrylate, n-octyl methacrylate, methacrylic f11-
2-ethylhexyl, dodecyl methacrylate, octadecyl methacrylate; butadiene-1゜3.2-methylbutadiene-1,3,2-chlorobutadiene-1,3,2
, 3-dimethylbutadiene-1,3, etc. These monomers are used to impart flexibility to the emulsion, but if their proportion is less than 30% by weight of the total monomers, the effect will not be sufficient and the texture of the fake leather will be extremely rough. It becomes hard.

α and β used as second component monomers in the present invention
- Monoethylenically unsaturated carboxylic acids include acrylic acid, methacrylic acid, crotonic acid, maleic acid, fumaric acid, itaconic acid and unsaturated dicarboxylic acid monoalkyl esters such as monomethyl maleate, monoethyl fumarate, mono-n- itaconate. Examples include butyl. These monomers are necessary components to increase the mechanical stability and freezing stability of the composition, as well as to increase the adhesion of the emulsion film to the fibers, and their proportion in the total monomers is 0
．． If it is less than 1% by weight, there is no effect, and if it exceeds 10% by weight, the water resistance of the film decreases, and the waterproof performance of the manufactured fake leather is inferior.

Other α,β-monoethylenically unsaturated monomers that can be copolymerized with the above-mentioned first and second component monomers used as the third component monomer in the present invention include methyl methacrylate, methacrylic acid Ethyl, n-propyl methacrylate, isopropyl methacrylate, styrene, α-methylstyrene, vinyltoluene, chlorostyrene, 2,4-dibromustyrene, acrylonitrile, methacrylonitrile,
Monomers mainly for imparting hardness or specific performance to the composition film, such as vinyl acetate, vinyl propionate, vinyl chloride, vinylidene chloride, vinylidene bromide, etc.
Also, acrylamide, methacrylamide, N-methylolmethacrylamide, N-butoxymethylacrylamide, N-butoxymethylmethacrylamide, diacetone acrylamide, hydroxymethyl diacetone acrylamide, glycidyl acrylate, glycidyl methacrylate, 2-hydroxy acrylate Examples include functional group-containing monomers that can be crosslinked by heat and acid catalysts, such as ethyl, 2-hydroxypropyl acrylate, 2-hydroxyethyl methacrylate, and 2-hydroxypropyl methacrylate. . These monomers are used in an amount of 69.9% by weight or less of the total monomers, but if the former monomer exceeds 69.9% by weight, the film of the composition will become too hard and difficult to process. The texture of the imitation leather becomes rough and hard. In addition, the latter monomer should be used in an amount of 10% by weight or less based on the total monomers, because if its proportion increases, the emulsion stability during polymerization will decrease and the storage stability of the composition will decrease. preferable.

The polyurethane emulsion used in the present invention is an aqueous dispersion of a urethane resin, and is not limited by its manufacturing method, the presence or absence of an emulsifier, and the presence or absence of an organic solvent.

This aqueous polyurethane dispersion is already known and can be produced by various methods. A polyhydroxy compound having a hydroxyl group at the end is reacted with an organic polyisocyanate in excess of the stoichiometric amount, and then the obtained prepolymer is emulsified in an aqueous dispersion medium using a surfactant, and a chain extender is added to this. In addition, an aqueous polyurethane dispersion obtained by chain elongating a prepolymer can also be used.

Such polyhydroxy compounds usually have a molecular weight of 300
-4000 preferably 600-3000,
Typical examples include polyether polyols and polyester polyols.

Polyether polyols include ethylene glycol, diethylene glycol, triethylene glycol, 1.2-
Propylene glycol, trimethylene glycol, 1.
3-butylene glycol, tetramethylene glycol,
hexamethylene glycol, decamethylene glycol,
Glycerin, sorbitol, R11lt, aconitic acid, trimellitic acid, hemimellitic acid, phosphoric acid, ethylenediamine, propylene diamine, diethylene triamine,
Triisopropanolamine, pyrogallol, dihydrobenzoic acid, hydroxyphthalic acid,!・At least 2 active hydrogen atoms such as 2,3-propane trithiol, etc.
Manufactured by addition polymerization of one or more monomers such as ethylene oxide, propylene oxide, butylene oxide, styrene oxide, epichlorohydrin, tetrahydrofuran, cyclohexylene, etc. by a conventional method using one or more of these compounds as an initiator. be done.

On the other hand, polyester polyols include ethylene glycol, diethylene glycol, triethylene glycol,
At least two such as 1,2-propylene glycol, trimethylene glycol, 1,3-butylene glycol, tetramethylene glycol, hexamethylene glycol, decamethylene glycol, glycerin, trimethylolpropane, pentaerythritol, sorbitol, etc.
one or more compounds having hydroxyl groups, malonic acid, maleic acid, succinic acid, adipic acid,
One or two compounds having at least two carboxyl groups, such as tartaric acid, pimelic acid, sebacic acid, calcinic acid, phthalic acid, terephthalic acid, hexahydrophthalic acid, aconitic acid, trimellitic acid, hemimellitic acid, etc. It is produced by condensation polymerization of two or more species using a conventional method.

Polyhydroxy compounds such as polyether polyols and polyester polyols can be used alone or in combination of two or more, and further include ethylene glycol, diethylene glycol, triethylene glycol, Can be used in admixture with low molecular weight polyols such as glycol, trimethylene glycol, 1,3-butylene glycol, tetramethylene glycol, hexamethylene glycol, decamethylene glycol, glycerin, trimethylolpropane, pentaerythritol, sorbitol, etc. .

Examples of organic polyisocyanates include aliphatic, alicyclic or aromatic polyisocyanates, such as 2,4-tolylene diisocyanate, 2,6-tolylene diisocyanate, 4,4'-diphenylmethane diisocyanate, m
- Phenyl diisocyanate, xylylene diisocyanate, tetramethylene diisocyanate, hexamethylene diisocyanate, lysine diisocyanate, ■・
4-cyclohexylene diisocyanate, 4,4'-dicyclohexyl diisocyanate, 3,3'-dimethyl-4,4'-biphenylene diisocyanate, 3,3'
-dimethoxy-4,4'-biphenylene diisocyanate, 3,3'-dichloro-4,4'-biphenylene diisocyanate,!・5-naphthalene diisocyanate,
Examples include 1,5-tetrahydronaphthalene diisocyanate and diphenyl-2,4,4-triisocyanate.

The chain extender has at least two groups capable of reacting with the isocyanate groups.
Compounds having active hydrogen atoms, such as ethylene glycol, tetramethylene glycol, hexamethylene glycol, diethylene glycol, monoethanolamine, ethylene diamine, triethylene diamine, 2-propylene diamine, hexamethylene diamine, N-ethanol ethylene diamine , N-N'-jethanolethylenediamine, m-phenylenediamine,
Representative examples include glycols, alkanolamines, and diamines such as 2,4-tolylene diamine, bis-4-aminophenylmethane, 3,3'-dichloro-4,4'-diaminodiphenylmethane, piperazine, and 2-methylpiperazine. As a typical example, a reaction product of 1 mole of alkylene diamine and 2 moles of acrylamide, and a reaction product of 1 mole of alkylene diamine and 2 moles of acrylonitrile can also be used.

In the case of the present invention, the concentration of the aqueous polyurethane dispersion is not particularly limited, but considering economic efficiency and homogeneity during drying,
A suitable amount is 30 to 60% by weight, preferably 40 to 50% by weight.

Examples of the surfactant used in emulsion polymerization of the resin emulsion of the present invention include anionic surfactants, nonionic surfactants, cationic surfactants, water-soluble polymer substances, etc. , anionic type, nonionic type, and a combination system of anionic type and nonionic type are used in an amount of 0.1 to 10% by weight based on the total amount of monomers.

In addition, there are no particular restrictions on the polymerization aids used in normal emulsion polymerization (all can be used). For example, as a polymerization initiator, persulfates such as potassium persulfate and ammonium persulfate, hydrogen peroxide, and Redox initiators are made by combining inorganic and organic peroxides such as hydroperoxide and tertiary butyl hydroperoxide, and water-soluble reducing agents such as ferrous salts, sodium bisulfite, and polyamines. can be used.

The various monomers mentioned above may be added all at once, in portions, or by continuous dropwise addition, and the polymerization temperature is 0 to 100.
Polymerization is carried out in the range of °C.

After the polymerization is completed, unreacted monomers are removed by stripping or concentration, solid content is adjusted, or pH is adjusted to 1li by adding ammonia or the like, as required.

When applying the thus obtained simulated leather composition of the present invention to a fiber base material, a conventional processing method such as a doctor knife method, a roll coating method, a spray method, or an impregnation method can be applied. The amount of surfactant added is
The amount is o, ooi to 5%, preferably 0.01 to 2%, based on the weight of the resin emulsion. Added amount is 0.001% by weight
If the amount is less than 5% by weight, hardly any effect will be observed, and conversely, if the amount added is more than 5% by weight, no further effect will be observed and it is not economical.

The fibrous material used in the present invention preferably has a size of 5 to 200 meshes, particularly 10 to 50 meshes, such as natural fibers such as cotton, wool, hemp, acrylonitrile copolymer fibers, polyacrylic fibers, etc. Synthetic fibers such as fibers, urethane fibers, polyester fibers, nylon fibers,
It is a fine fibrous powder such as skin powder or pulp, and there are no particular restrictions on the material, but animal skin powder such as horse, cow, and sheep is preferred from the viewpoint of texture, and the particle size of the skin powder is determined by coating. From the viewpoint of workability, it is preferably 10 to 200 meshes, particularly 10 to 50 meshes. These fibrous substances are contained in an amount of 10 to 5 parts by weight based on 100 parts by weight of the solid content of the polyacrylic acid ester emulsion and the polyurethane emulsion alone or in a mixture.
0 parts by weight, preferably 3 to 50 parts by weight. In this case, if the amount added is less than 10 parts by weight, the feel of leather cannot be obtained. Further, if the amount added is 50 parts by weight or more, fluidity suitable for coating cannot be obtained, and durability such as washing resistance is deteriorated.

The composition of the present invention thus obtained is preferably used by adjusting the pH to 5 to 9, preferably 6 to 8.

In addition, for fake leather, the composition of the present invention is applied on a release paper or a fiber base material at a rate of 500 to 1500 g/rd, preferably 750 to 150 g/rd.
Apply 0g/rd (WET) and pre-dry preferably at 80~''120℃ x 5~30120℃ x 5~3
0 minute-King, preferably from 140 to b. Especially when applied to fiber substrates, aminoplast resins, epoxy resins,
Network crosslinking can be achieved by adding phenol resin, xylene resin, etc. The amount added at this time is preferably 1 to 10 parts by weight per 100 parts by weight of the resin emulsion.

In addition, when the coating amount is 750 to 1500 g/rrr, there is no problem in adding a solvent to improve drying properties.As for the type of solvent, low boiling point solvents and medium boiling point solvents are preferable.Low boiling point solvents For example, methyl alcohol,
Examples include those having a boiling point of 100° C. or lower, such as ethyl alcohol, propyl alcohol, isopropyl alcohol, carbon disulfide, benzene, and carbon tetrachloride. Examples of medium boiling point solvents include toluene, xylene, butyl acetate, butyl alcohol, isobutyl alcohol, sec-butyl alcohol, cellosolve, methyl cellosolve, diethyl cellosolve, isopropyl cellosolve, cellosolve acetate,
Methyl cellosolve acetate boiling point 100℃~150℃
Examples include:

There is no problem in adding additives such as a dispersant, an extender, a colorant, a thickener, and a solvent to the composition of the present invention, if necessary.

Particularly in the production of fake leather, for example, in the process of puffing the composition of the present invention onto a fiber base material, it is necessary to adjust the viscosity to an appropriate coating device, and roll coater 1 or knife coater, which is widely used for backing, is necessary. The viscosity of the composition of the present invention is between 20,000 and 80,000 cps
Therefore, for this purpose, the viscosity can be easily increased by adding an aqueous solution of a water-soluble polymer such as sodium polyacrylate, carboxymethyl cellulose, or polyethylene glycol monostearyl ester to a thickener. It is possible to adjust the viscosity to an appropriate level.

〔effect〕

According to the present invention, it is possible to obtain a fake leather that is comparable to natural leather and has excellent durability, water resistance, washing resistance, coating suitability, cold resistance, and drying properties. Moreover, it can be used not only for clothing, but also for places where leather is used, such as rugs, bags, bags, and shoes.

〔Example〕

Next, the present invention will be specifically explained with reference to Examples. In the examples, "r parts" indicates "parts by weight."

Example 1 Polyacrylic ester emulsion (Boncourt A
C=650 solid content 55% Dainippon Ink & Chemicals Product) 40 parts cow hide powder (viscosity 32 mesh), 5.5 parts perchlorethylene, trimethylolmelamine resin (Beccamin PMN) Add 5 parts of Dainippon Ink Chemical Industry ■product) and 0.2 part of organic amine catalyst (Catalyst 376 Dainippon Ink Chemical Industry ■product) and stir to make a homogeneous slurry. A-2OL Toagosei Chemical Product) and polyethylene glycol monostearyl ester (
Finenol AN-20 (manufactured by Nippon Politic) 50
150 (solid content weight ratio) to make a 25% aqueous solution, 2 parts of a thickener was added and further stirred until it became homogeneous to obtain a composition A with a viscosity of 30,000 cps, 5 pH of 7.0, and a solid content of 50%. Composition B (viscosity 6500
0 cps, pH 7.0, solid content 50%).

Next, high pile fabric of acrylic fiber (pile length 1c)
Apply compositions A and B to the back side of I11) using a knife coater so that the dry weight is 1000 g/ryf,
Immediately pre-dry it in a hot air dryer at 100°C for 15 minutes, then bake at 150°C for 15 minutes to form a fake leather-like backing layer on the back side of the high pile fabric.
After being allowed to stand for 24 hours at 3° C. and 60% RH, the backing layer was subjected to a performance test using the method described below.

(Performance test method) - Appearance The uniformity of the thickness of the buffing layer and the appearance of the backing cotton were observed.

Judgment Criteria> 0: The backing layer has a uniform thickness and has the outside I of natural leather.

Δ: The thickness of the backing layer is slightly uneven, but it has an appearance similar to natural leather.

X: The thickness of the backing layer is uneven and the appearance is far from that of natural leather.

・The acrylic fiber high-vile fabric (pile length 1 cm) coated with the drying composition was dried in a hot air dryer at 100°C for 15 minutes at 150°C.
After heating for 15 minutes at °C, the degree of dryness of the backing layer was observed by touch.

Judgment Criteria: o: Completely dry.

Δ: Slightly damp.

×: Moist.

・Cold resistance - Immediately after standing at 20°C for 24 hours, the texture was compared by touch.

<Judgment Criteria> ○: There is almost no change compared to that left standing at a car room temperature of 20°C.

△: Slightly harder than that left standing at a car room temperature of 20°C.

×: Very hard compared to those left at room temperature (20° C.).

- Coating suitability: Uniform coating property when the composition is applied to a fiber base material using a knife coater Judgment criteria: 0: Can be applied uniformly.

Δ: Slightly unevenly applied.

×: Cannot be applied uniformly.

・Tensile strength ・Cut the sample into 4cm x 15csa and autograph IM
-100 (manufactured by Shimadzu Corporation) at a tensile speed of 200 m/+
Measured as sin.

・Peel strength: The banking layer of the sample and the rayon brushed fabric were pasted together using a synthetic rubber adhesive, and after drying at 20°C for 24 hours, the width was 2.
A specimen of 5csl and 15cm+ in length was prepared and tensile speed was 30 using Autograph IM-100 (manufactured by Shimadzu Corporation).
0m/mln (measurement temperature 23℃, humidity 65%RH)
The pile fabric and backing layer were peeled off and the strength was measured.゛・Washing resistance After washing the sample with water in a home washing machine, the appearance of the backing layer was observed.

Test conditions Toshiba fully automatic electric washing machine (saving mode 24 minutes) Detergent - 1 - 7th minute of Zabuori, Bu (180cc) Number of washes - 5 times Drying method - 1 Tumbler 60℃XIO minutes Judgment criteria: ○: No peeling between the high pile fabric and the backing layer.

×: There was peeling between the high pile fabric and the backing layer.

The performance test results are shown in Table 1 (Both compositions A and B can be coated very easily and uniformly using a knife coater, and the backing layer after heat treatment has an appearance and feel very similar to natural leather. It also had excellent peel strength and tear strength.

Table-1 Coating, conditions and performance of backing layer 1) BH type rotational viscometer Magnetic 60-ter, 10 rpm, (25°C)
Example 2 Backing composition C (viscosity 60
000cps, pH 7.0, solid content 50%), D(
Viscosity 65000cps.

PH7.0, solid content 50%) was prepared.

Next, compositions C and D were applied to a high pile fabric under the same method and conditions as in Example 1, dried and baked to form a backing layer, and various physical property tests were conducted. The results are shown in Table 2.
As shown in Figure 2, Compositions C and D could be coated very easily and uniformly using a knife coater, and the banking layer after heat treatment had an appearance and feel very similar to natural leather.

Comparative Example 1 Backing composition E (viscosity 50,000 cps, pH 7.0, solid content 50%) was prepared in the same manner as in Example 1 except that the amounts of skin powder added were 0 parts, 5 parts, and 60 parts, respectively.
F (viscosity 53000 cps, pH 7.0, solid content 5
0%) and G (viscosity 62,000 cps, pH 7.0, solid content 50%) were prepared.

Next, Composition E and FSG were applied to a high pile fabric using the same method and conditions as in Example 1, dried and baked to form a backing layer, and various physical property tests were conducted. The results are shown in Table 2. Compositions ESF and G had poor coating suitability, and the backing layer after heat treatment had an appearance that could not be considered fake leather at all.

Table 2 Effect of added amount of skin powder on backing layer performance Example 3 Example 1 except that the blending ratio of the emulsion used was different
Backing composition H (viscosity 65,000
cps, pH 7.0, solid content 50%), J (viscosity 62
000cps.

po'r, o, solid content 50%), K (viscosity 58000c
The emulsion blending ratio and amount of thickener used in Composition H and JSK are shown in Table 3. After that, high pile was prepared using the same method and conditions as in Example 1. Compositions H, J, and K were applied to fabrics, dried, and baked to form banking layers, and various physical property tests were conducted. The results are shown in Table 3. Compositions H, J, and K using polyacrylic acid ester emulsions and/or polyurethane emulsions can be coated very easily and uniformly with a knife coater, and the backing after heat treatment is The layer also has an appearance and feel very similar to natural leather, and has excellent drying properties, cold resistance, peel strength, tear strength, and 5 times of home washing.
The moisture permeability test was also excellent.

Comparative Example 2 Backing composition L (viscosity: 63,000 c
ps.

pH 7.0, solid content 47%), M (viscosity 59000cp)
s, pH 7.0, solid content 47%), N (viscosity 80,000
cps, pH 7.0, solid content 42%) was prepared.

The amounts of emulsions and thickeners used in &11 products, M, and N are shown in Table 3.

Next, using the same method and conditions as in Example 1, the composition was applied to a high-grade fabric, M and N were applied, dried and baked to form a backing layer, and various physical property tests were conducted. The results are shown in Table 3. For the compositions using vinegar and ethylene cobolymer emulsion, SBR latex, and polyvinyl acetate emulsion, M and N had poor coating suitability, and after heat treatment. The backing layer also had an appearance that could not be considered pseudo-leather at all, and was inferior in drying properties, cold resistance, peel strength, tear strength, home washing five times, and moisture permeability tests. However, the contents of the compounded substances used are as follows.

Bonco)” AC-650 Dainippon Ink & Chemicals ■Product Polyacrylate Resin Emulsion NV54~5
6% Bondic @1050 Dainippon Ink & Chemicals ■
Product Polyurethane Resin Emulsion NV46-48% Evadic 0EV-2 Dainippon Ink & Chemicals Product Ethylene-Vinyl Acetate Resin Emulsion NV49-51
% Luxstar ■D S-604 Dainippon Ink & Chemicals ■Product Styrene-butadiene resin emulsion NV5
4-56% Boncourt 02520 Dainippon Ink & Chemicals ■
Product polyvinyl acetate resin Elsion NV41~43%

Claims (1)

[Claims] It is characterized by containing at least 100 parts by weight (in terms of solid content) of one or more resin emulsions selected from polyacrylic acid ester emulsions and polyurethane emulsions and 10 to 50 parts by weight of fibrous substances. A composition for imitation leather.