JPH06145413A - Composition for preventing hot-melt resin infiltration and adhesive interlining - Google Patents

Abstract

PURPOSE:To provide the subject composition high in initial adhesive force, solvent-resistant adhesive force and water-resistant adhesive force, and also excellent in hot-melt resin infiltration-preventive effect, and to provide an adhesive interlinings using this composition. CONSTITUTION:(A) 100 pts.wt., on a solid basis, of a polymer emulsion prepared by polymerization of a monomer emulsion comprising (1) 52.5wt.% of ethyl acrylate, (2) 40wt.% of butyl acrylate, (3) 5wt.% of acrylonitrile, (4) 0.5wt.% of N-methylol acrylamide and (5) 2wt.% of acrylic acid, is incorporated with (B) 5 pts.wt., on a solid basis, of colloidal silica and (C) 0.2 pts.wt. of a silane coupling agent, followed by agitation and then adding 12.25 pts.wt. of a thickening agent to the system, thus affording the objective composition with a viscosity of 22000cps. A nonwoven fabric is coated with this composition followed by drying and then applying a hot-melt resin on the surface and melting the resin, thus affording the other objective adhesive interlining.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composition for preventing penetration of hot-melt resin and an adhesive interlining, more specifically, the adhesive strength immediately after adhering to a cloth (hereinafter referred to as "initial adhesive strength") and a solvent. The subsequent adhesive force (hereinafter, referred to as "solvent-resistant adhesive force") and the adhesive force after soaking in water (hereinafter, referred to as "water-resistant adhesive force") are strong, and the effect of preventing penetration of the hot melt resin (hereinafter, " The invention relates to a composition for preventing penetration of a hot melt resin and an adhesive interlining material which are excellent in “penetration preventive property”.

[0002]

2. Description of the Related Art As an interlining material for clothes and automobile interiors, an adhesive interlining material, which is obtained by coating an interlining base cloth with a hot melt resin, is used. In recent years, difficult-to-bond materials and thin materials are often used as interlining materials. However, with an interlining material made of a material that is difficult to adhere to, the clothing material adhered to the interlining material is likely to peel off. In addition, in the interlining made of a thin material, there is a problem that the hot melt resin penetrates into the interlining base fabric and impairs the texture of clothing. Therefore, in order to prevent the penetration of the hot melt resin, an adhesive interlining is proposed in which the interlining base cloth is coated with a composition for preventing penetration of the hot melt resin, and the hot melt resin is coated on it. Magazine "Textile Engineering" Vol.45, No.3, P147-1
56 (1992)). Conventionally, acrylic acid ester resins and urethane resins have been used for the composition for preventing penetration of hot melt resin. However, the acrylic ester resin was weak in initial adhesive strength, solvent resistant adhesive strength and water resistant adhesive strength. Further, since urethane resin is expensive, it cannot be used for a wide range of purposes.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide an inexpensive hot-melt resin permeation-preventing composition and adhesive interlining having high initial adhesive strength, solvent-resistant adhesive strength and water-resistant adhesive strength and excellent permeation-preventing property. Is to provide. As a result of intensive studies to achieve the above-mentioned object, the present inventors laminate a composition containing a specific substance as a main component and a hot melt resin containing the specific substance as a main component on an interlining base fabric. As a result, they have found that this object can be achieved, and have completed the present invention.

[0004]

Thus, according to the present invention, there is provided a composition for preventing penetration of a hot melt resin, which comprises a polymer, silica and a silane coupling agent as main components. Further, according to the present invention, there is provided an adhesive interlining which is obtained by laminating the composition for preventing penetration of hot melt resin and the hot melt resin on an interlining base cloth.

The composition for preventing permeation of hot melt resin of the present invention contains a polymer, silica and a silane coupling agent as main components.

The polymer used in the present invention is not particularly limited, and specific examples thereof include various polymers such as an acrylic polymer, a diene polymer and a styrene polymer. In particular, an acrylic polymer such as an acrylic ester resin is suitable for a composition for preventing penetration of a hot melt resin used for an adhesive interlining for clothes.

The polymerizable monomer used to obtain the polymer is, for example, methyl (meth) acrylate, (meth)
Ethylenically unsaturated carboxylic acid alkyl esters such as butyl acrylate, ethyl (meth) acrylate, and 2-ethylhexyl (meth) acrylate; acrylonitrile,
Cyano group-containing ethylenically unsaturated monomers such as methacrylonitrile, fumaronitrile, α-chloroacrylonitrile, α-cyanoethylacrylonitrile; 1,3-butadiene, isoprene, 2,3-dimethyl-1,3-butadiene, 2- Conjugated diene monomers such as ethyl-1,3-butadiene, 1,3-pentadiene and chloroprene; ethylenically unsaturated carboxylic acids such as acrylic acid, methacrylic acid, maleic acid, fumaric acid, citraconic acid and salts thereof; styrene Aromatic vinyl monomers such as alkyl styrene and vinyl naphthalene; fluoroalkyl vinyl ethers such as fluoroethyl vinyl ether; vinyl pyridine; non-conjugated diene monomers such as vinyl norbornene, dicyclopentadiene and 1,4-hexadiene; ethylene , Olefins such as propylene (Meth) ethylenically unsaturated amide monomers such as acrylamide; and the like. Among these polymerizable monomers, the (meth) acrylic acid alkyl ester is used in the composition for preventing hot melt resin permeation used for the adhesive interlining for clothing from the total amount of polymerizable monomers used to obtain the polymer. 60% by weight or more of the body, especially 80% by weight
It is preferable to use the above.

Furthermore, the polymerizable monomer having a crosslinkable functional group is used as the total amount of the polymerizable monomers used to obtain the polymer.
It is preferable to use it in the range of not more than 2% by weight, especially in the range of not more than 2% by weight, since the solvent resistance and water resistance of the composition for preventing permeation of hot melt resin are improved. If it exceeds 5% by weight, the polymerization stability of the polymer decreases. The crosslinkable functional group is a functional group that becomes a crosslinking point when the polymer is crosslinked, and examples thereof include a hydroxyl group, a glycidyl group, an amino group, an N-methylol group, and a vinyl group. Specific examples of the polymerizable monomer having a crosslinkable functional group include hydroxypropyl (meth) acrylate,
Hydroxy ester of ethylenically unsaturated carboxylic acid such as hydroxyethyl (meth) acrylate; Glycidyl ester of ethylenically unsaturated carboxylic acid such as glycidyl (meth) acrylate; Ethylenically unsaturated such as dimethylaminoethyl (meth) acrylate Amino ester of carboxylic acid; N-methylol (meth) acrylamide, N,
Methylol group-containing ethylenically unsaturated amides such as N-dimethylol (meth) acrylamide; ethylenedi (meth)
A monomer having two or more vinyl groups such as acrylate and divinylbenzene; and the like.

The polymer used in the present invention can be obtained by known emulsion polymerization, solution polymerization and the like. In the polymerization, the polymerization temperature, the pressure during the polymerization, the addition method of the polymerizable monomer,
The auxiliary materials (polymerization initiator, molecular weight adjusting agent, pH adjusting agent, etc.) used are not particularly limited.

As the polymerization initiator, a water-soluble initiator such as persulfate; an oil-soluble initiator such as benzoyl peroxide can be used. As the molecular weight modifier, mercaptans such as t-dodecyl mercaptan and n-dodecyl mercaptan;
α-methylstyrene dimer; sulfides such as dimethylxanthogen disulfide and diisopropylxanthogen disulfide; nitrile compounds such as 2-methyl-3-butenenitrile and 3-pentenenitrile; and the like, and these can be used alone or in combination of two or more. . As the emulsifier, for example, an anionic surfactant, a nonionic surfactant or the like can be used alone or in combination. Also,
Reactive surfactants, protective colloids, etc. can also be used. After the polymerization, a pigment, a cross-linking agent, a cross-linking accelerator, etc. can be added if necessary.

The polymer used in the present invention preferably has a glass transition temperature of -50 to 60 ° C. Particularly, a composition of -40 to 0 ° C is suitable for a composition for preventing penetration of a hot-melt resin used for an adhesive interlining for clothes, and a composition for preventing penetration of a hot-melt resin for an adhesive interlining for an automobile interior is suitable. It is preferably 10 to 50 ° C.

The polymer used in the present invention is not limited by its form, but it is particularly preferable to use it as an emulsion of the polymer because a uniform composition for preventing penetration of hot melt resin can be obtained.

The polymer emulsion has a polymer particle size of 0.05 to 0.5 μm, particularly 0.08 to 0.2 μm.
Are preferred. If it is less than 0.05 μm, the viscosity of the emulsion becomes high, which is inconvenient to handle. Conversely, 0.
If it exceeds 5 μm, the initial adhesive strength of the composition for preventing penetration of hot melt resin becomes weak.

The polymer emulsion preferably has a pH in the range of 7 to 10.5 in order to maintain the stability of the emulsion. As a pH adjuster,
Ammonia, organic amines, alkali metal hydroxides (sodium hydroxide, potassium hydroxide) and the like can be used.

The polymer emulsion is obtained by a known emulsion polymerization method or phase inversion method. The production conditions of the emulsion polymerization method and the phase inversion method are not particularly limited.

The silica used in the present invention has a particle size of 1
It is preferably in the range of ˜100 mμ, particularly 10 to 50 mμ. If the particle size is too small, it becomes difficult to obtain a uniform composition for preventing penetration of hot melt resin. Again 100
If a particle having a large particle size of more than mμ is used, the initial adhesive strength of the composition for preventing permeation of hot melt resin becomes weak.

The silica used in the present invention is not limited by its form, but colloidal silica is particularly preferable because a uniform composition for preventing permeation of hot melt resin can be obtained.

The colloidal silica can be used regardless of whether the pH is acidic, neutral or basic, but those having a pH in the range of 8.5 to 10.5 are particularly preferable. If the pH becomes too low, the colloidal silica aggregates and gels. Conversely, if the pH becomes too high,
The storage stability of colloidal silica is impaired.

The silane coupling agent used in the present invention is
It is an organosilicon compound having a hydrolyzable group. The hydrolyzable group is a functional group capable of binding to silica after hydrolysis, and examples thereof include an alkoxy group and a halogen group. Specific examples of the silane coupling agent include vinyl tris (β-methoxyethoxy) silane, γ
-Vinylalkylalkoxysilanes such as methacryloxypropyltrimethoxysilane; γ-glycidoxypropyltrimethoxysilane, β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, γ-glycidoxypropylmethyldiethoxysilane, etc. Epoxyalkylalkoxysilane; γ-aminopropyltriethoxysilane and other aminoalkylalkoxysilanes; γ-mercaptopropyltrimethoxysilane and other mercaptoalkylalkoxysilanes; γ-chloropropyltrimethoxysilane and other halogenated alkylalkoxysilanes; vinyl Examples thereof include vinylhalosilane such as trichlorosilane; alkylacyloxysilane such as methyltriacetoxysilane. In particular, epoxyalkylalkoxysilane, aminoalkylalkoxysilane or halogenated alkylalkoxysilane is preferable.

In the composition for preventing permeation of hot melt resin of the present invention, the ratio of the polymer, silica and silane coupling agent is 1 to 30 parts by weight of silica based on 100 parts by weight of the polymer.
Parts by weight and silane coupling agent 0.05 to 5 parts by weight,
More preferably, it is 3 to 15 parts by weight of silica and 0.3 to 2 parts by weight of a silane coupling agent. When the amount of silica is less than 1 part by weight, the initial adhesive strength becomes weak. On the other hand, if it exceeds 30 parts by weight, the initial adhesive strength of the composition for preventing permeation of hot melt resin becomes weak and the permeation preventive property also deteriorates. If the amount of the silane coupling agent is less than 0.05 parts by weight, the initial adhesive strength, solvent resistant adhesive strength and water resistant adhesive strength of the hot melt resin permeation preventive composition will be weakened. On the other hand, even if the amount exceeds 5 parts by weight, the effect of increasing the amount is not improved and it is not economical, and the storage stability of the composition for preventing permeation of hot melt resin is lowered.

The composition for preventing permeation of hot melt resin of the present invention is not limited by the preparation method thereof,
For example, a method in which silica is mixed and dispersed in a polymer, and then a silane coupling agent is mixed and dispersed; when a polymer is produced, a silane coupling agent is added together with a polymerizable monomer to polymerize, and A method of mixing and dispersing silica; and the like. The method of mixing and dispersing is not particularly limited, and examples thereof include a method of kneading with a Henschel mixer or the like.
When the polymer is an emulsion, a method of stirring with a stirrer or the like can be used.

The hot-melt resin permeation-preventing composition of the present invention is preferably used as an emulsion of the composition because it is easy to handle when laminated on an interlining base fabric. The emulsion of the composition for preventing penetration of hot melt resin has a viscosity of 10,000 to 50,000 cps, especially 20,000.
It is preferably -40,000 cps. 10,000
When it is less than cps, the emulsion of the composition for preventing permeation of hot melt resin permeates into the interlining base fabric, and the effect of preventing permeation of hot melt resin cannot be obtained. On the other hand, if it exceeds 50,000 cps, it becomes inconvenient to handle the emulsion of the composition for preventing permeation of hot melt resin. Regarding the viscosity, the emulsion of the composition for preventing permeation of hot melt resin at 20 ° C. adjusted to have a solid content of 20% was measured using a BL type viscometer. Measure with a 4 rotor at 6 rpm. The viscosity can be adjusted by adding a thickener to the emulsion of the composition for preventing permeation of the hot melt resin or heating the emulsion of the composition for preventing permeation of the hot melt resin. In particular, it is preferable to adjust the viscosity with a thickener. As the thickener, an emulsion type thickener such as polyacrylic acid emulsion is suitable. The emulsion of the composition for preventing hot-melt resin permeation is not limited by its preparation method. It is obtained by phase inversion.

The adhesive interlining of the present invention is obtained by laminating the above-mentioned composition for preventing penetration of hot melt resin and hot melt resin on an interlining base cloth.

The hot-melt resin used in the present invention is usually used as a hot-melt adhesive agent, and specifically, polyamide resin, polyester resin, polyethylene resin, ethylene-vinyl acetate resin, polyvinyl chloride resin, etc. Is mentioned. Further, the hot melt resin is not limited by its form, and may be in any form such as powder form, particle form, and net form.

The interlining base fabric used in the present invention is usually used as an adhesive interlining for clothes or automobile interiors, and examples thereof include woven fabric and non-woven fabric. Nonwoven fabrics are especially preferred for adhesive interlinings for clothing. Further, the interlining base fabric is not particularly limited depending on its material. Examples thereof include natural fibers such as silk, cotton and hemp; synthetic fibers such as polyester fibers and polyamide fibers; carbon fibers; metal fibers and the like. Polyester fibers are particularly suitable for adhesive interlinings for clothing.

The adhesive interlining of the present invention is obtained by laminating a composition for preventing penetration of hot melt resin on an interlining base fabric and further laminating a hot melt resin on a layer of the composition for preventing hot melt resin. The composition for preventing penetration of hot melt resin is laminated on all or part of the interlining base fabric. When the hot melt resin permeation preventive composition is laminated on a part of the interlining base fabric, it is common to laminate the hot melt resin permeation preventive composition in a regular or irregular pattern of dots or lines. is there. The hot melt resin is laminated on the layer of the composition for preventing hot melt resin. When the hot melt resin is laminated on a portion other than the layer of the composition for preventing permeation of the hot melt resin, the hot melt resin penetrates into the interlining base fabric, and the texture of the cloth is deteriorated. The thickness of each layer is appropriately selected according to the purpose.

The adhesive interlining of the present invention is not limited by its laminating method. As a method for laminating the composition for preventing permeation of hot melt resin, for example, the composition for preventing permeation of hot melt resin is applied by screen coating, brush coating or spray coating, and then dried if necessary. As a method of laminating the hot melt resin, for example, after the hot melt resin is powder-dispersed or spray-coated, the hot melt resin is melted as necessary.

[0028]

As described above, according to the present invention, it is possible to obtain a composition for preventing penetration of a hot-melt resin and an adhesive interlining which have a high initial adhesive strength, particularly solvent-resistant adhesive strength and water-resistant adhesive strength and are excellent in permeation preventing property. it can.

[0029]

EXAMPLES The present invention will be described in more detail with reference to the following examples. The invention is not limited to the examples. The parts and% in the examples are by weight unless otherwise specified. Further, the weights of the polymer emulsion and colloidal silica are in terms of solid content.

In this example, the evaluation method of the composition for preventing penetration of hot melt resin and the adhesive interlining was as follows. (Preparation of test piece) A men's clothing is placed on the adhesive interlining, and a load of 2 kg / 10c is applied from above on it using a press machine at 130 ° C.
It was crushed with m ² for 30 seconds and cut into 3 cm × 3 cm to obtain a test piece.

(Initial Adhesion) The T-type adhesive peel strength between the interlining of the test piece and the clothing was measured according to JIS K6854.

(Waterproof adhesive strength) Using a domestic washing machine, the test piece was placed in 30 liters of water at 20 ° C. and 100 g of household laundry soap.
Was washed for 5 minutes with water, drained for 1 minute, then washed with 30 liters of water at 20 ° C. for 5 minutes, and drained for 1 minute. After repeating this operation three times, the T-type adhesive peel strength was measured by the same method as the evaluation method of the initial adhesive force.

(Solvent resistance adhesive strength) After the test piece was immersed in tetrachloroethylene at 20 ° C. for 1 hour, the T-type adhesive peel strength was measured by the same method as the evaluation method of the initial adhesive strength.

(Permeation prevention property) The test pieces were visually observed and evaluated according to the following criteria. ○ ・ ・ There is no penetration of hot melt resin, and the texture of the clothes is soft. △ ・ ・ There is no penetration of hot melt resin, but the texture of the clothes is hard. × ・ ・ Hot melt resin penetrates and the texture of clothes is hard.

Reference Example A monomer emulsion was obtained according to the formulation shown in Table 1. In parallel, the inside of the flask reactor equipped with a condenser, a thermometer, a monomer emulsion introducing pipe, a nitrogen gas introducing pipe and a stirrer was replaced with nitrogen, and 60 parts of soft water and 1.5 parts of sodium dodecylbenzenesulfonate were added. It was added and the temperature was raised to 80 ° C. Next, 2 parts of ethyl acrylate was added to the reactor and stirred for 5 minutes, and then 10 parts of a 5% aqueous solution of ammonium persulfate was added to the reactor to start the reaction. After 1 hour, the above monomer emulsion was dropped into the reactor over 3 hours. that time,
6 parts of a 5% aqueous solution of ammonium persulfate was simultaneously added dropwise over 3 hours. After the completion of the monomer emulsification droplets, the reaction was continued for another 2 hours, then cooled to 20 ° C., and further depressurized to remove the residual monomer to obtain a polymer emulsion. The properties of these polymer emulsions are shown in Table 1.

[0036]

[Table 1]

Example 1 100 parts of the polymer emulsion (a) was added to colloidal silica (Snowtex C: Nissan Chemical Co., solid content 20%).
Add 5 parts and stir for 10 minutes, then silane coupling agent (γ-glycidoxypropyltrimethoxysilane)
0.2 part was added and stirred for 20 minutes. Furthermore, a thickener (Aron B300: manufactured by Toagosei Kagaku Co., solid content 40
%, Polyacrylic acid emulsion) 12.25 parts, and 280 parts of soft water to add a viscosity of 22000 cps and a solid content of 20.
% Of hot melt resin permeation preventive composition (A) was obtained. Next, 25 cm x 40 cm non-woven fabric (polyester spun bond, 1 denier, basis weight 30 g /
No. 10 g of the emulsion (A) of the composition for preventing permeation of hot-melt resin on one side of No. m ² ). It was applied using a wire bar of 18, and then placed in an oven at 130 ° C. for 4 minutes to be dried. Next, 1 g of hot melt resin powder (Daiamide 250: manufactured by Daicel Hüls, polyamide resin) was evenly dispersed on the coated surface of the composition for preventing penetration of the hot melt resin, and then placed in an oven at 130 ° C. for 3 minutes to hot melt. The resin powder was melted to obtain an adhesive interlining. The evaluation results of this adhesive interlining are shown in Table 2.

Examples 2 to 6 A hot melt having a viscosity of 22000 cps and a solid content of 20% was prepared in the same manner as in Example 1 except that the formulations of the polymer emulsion, colloidal silica and silane coupling agent were changed as shown in Table 2. Resin penetration preventing composition (B)
An emulsion (F) was obtained, and an adhesive interlining material was obtained from each. The evaluation results of these adhesive interlinings are shown in Table 2.

Comparative Examples 1 to 3 A polymer latex (a) was blended with a thickener without adding a colloidal silica or a silane coupling agent to obtain a viscosity of 2
Emulsions of hot melt resin permeation preventing compositions (G) to (I) having a cps of 2000% and a solid content of 20% were obtained, and adhesive interlinings were obtained in the same manner as in Example 1. The evaluation results of these adhesive interlinings are shown in Table 2.

[0040]

[Table 2]

From Table 2, it can be seen that those without addition of silica or silane coupling agent (Comparative Example) had weak initial adhesive strength, solvent resistant adhesive strength and water resistant adhesive strength. on the other hand,
According to the present invention, it can be seen that those containing a polymer, silica and a silane coupling agent as main components (Examples of the present invention) have strong initial adhesive strength, solvent resistant adhesive strength and water resistant adhesive strength and are excellent in permeation prevention.

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Claims (2)

[Claims] 1. A composition for preventing penetration of a hot melt resin, which comprises a polymer, silica and a silane coupling agent as main components. 2. An adhesive interlining, which is obtained by laminating the composition for preventing penetration of a hot melt resin according to claim 1 and a hot melt resin on an interlining base fabric.