JPH10158980A - Adhesive composition for lining fiber product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition that has resistance to blister regardless of the amount of inorganic filler formulated and its foaming state by formulating an organopolysiloxane and an ethylene glycol ether to an adhesive composition comprising a polymer dispersion and a filler. SOLUTION: An organopolysiloxane (preferably an alkylene oxide-modified organopolysiloxane), an ethylene glycol ether (preferably ethylene glycol monobutyl ether) are formulated to an adhesive composition comprising a polymer dispersion and an inorganic filter.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD OF THE INVENTION

[0002] The present invention relates to an adhesive composition for backing textile products having excellent blister resistance.

[0003]

2. Description of the Related Art Conventionally, carpets such as tufted carpets, knitted carpets and hook carpets are used for backing (sticking of piles) and laminating secondary fabrics, and for transportation of cars, trains, ships, airplanes and the like. Styrene-butadiene copolymer rubber (SBR) latex, natural rubber latex, acrylic polymer, etc. for dimensional stability, elasticity and lamination of secondary backing, etc. for fiber sheets and various upholstery fabrics for engines BACKGROUND ART Adhesive compositions for backing textiles in which a large amount of an inorganic filler is mixed with a polymer aqueous dispersion such as latex are used.

The above adhesive composition for backing textile products comprises:
It is applied to the back surface of the above-mentioned textile product and dried as it is or after pressing the secondary base fabric. At that time, depending on the drying conditions, only the surface is dried first, and a film of the adhesive composition is formed on the surface.
The appearance of the back surface of the backed textile product may be significantly impaired.

[0005]

In order to suppress the blister, an organopolysiloxane compound which is a heat-sensitive gelling agent has been conventionally used. When the amount of the adhesive composition is increased or when the adhesive composition is foamed and used, there is a problem that the blister resistance is reduced, and improvement is demanded. Therefore, the present inventor has conducted intensive studies to develop an adhesive composition for backing textile products having a blister resistance even when used in a large amount of an inorganic filler and in a non-foamed state and a foamed state. It has been found that the blister resistance is improved by using a combination of an agent and a certain organic compound, and the present invention has been completed based on this finding.

[0006]

According to the present invention,
An adhesive composition for backing textiles, comprising an adhesive composition comprising a polymer dispersion and a filler, wherein an organopolysiloxane compound and ethylene glycol ethers are blended with the adhesive composition. You.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to embodiments of the present invention. As the polymer dispersion used in the present invention, any conventionally known polymer latex used for backing textile products can be used, and it is not particularly limited. For example, SBR latex, butadiene-methyl methacrylate copolymer rubber latex, acrylonitrile-butadiene copolymer rubber latex, natural rubber latex, vinyl chloride polymer latex, vinyl chloride-
And vinyl acetate copolymer latex. The (co) polymer constituting these latexes may contain a functional group such as a carboxyl group, a hydroxyl group, a methylol group, an amide group, a glycidyl group or a sulfonic acid group. Particularly, a latex of a (co) polymer modified with a carboxyl group is preferable.

The inorganic filler used in the present invention includes:
For example, heavy calcium carbonate, light calcium carbonate, aluminum hydroxide, clay, talc and the like can be mentioned. Among them, heavy calcium carbonate or aluminum hydroxide generally used for lining treatment of textiles is preferable. The amount of the inorganic filler used is 100% of the solid content of the polymer dispersion liquid.
It is usually 50 to 600 parts by weight, preferably 150 to 500 parts by weight, per part by weight. If the amount is less than 50 parts by weight, the blister resistance becomes insufficient, and if it exceeds 600 parts by weight, a satisfactory adhesive strength cannot be obtained.

The organopolysiloxane compound used in the present invention is usually referred to as a heat-sensitive gelling agent.
It is a compound having a lower alkoxy group, a polyoxy lower alkylene group, a poly lower alkylene amino group or a derivative thereof, and a particularly preferred compound is an alkylene oxide-modified organopolysiloxane. For example, TPA
Commercial products such as 4380 and TPA4390 (both manufactured by Toshiba Silicon Corporation) can be used. The amount of the organopolysiloxane compound used is usually 0.03 to 3 parts by weight, preferably 0.05 to 3 parts by weight, per 100 parts by weight of the solid content of the polymer dispersion.
~ 2 parts by weight. If the amount is less than 0.03 parts by weight, it is difficult to suppress the occurrence of blister resistance. If the amount exceeds 3 parts by weight, the stability of the adhesive composition over time is lowered.

The ethylene glycol ether used in the present invention is a compound represented by the general formula R ¹ O (CH ₂ CH ₂ O) _n R ² , wherein ^one of R ¹ and R ² is a hydrogen atom A monoether compound wherein the other is an organic group and R ¹
And diether compounds wherein R ² is an organic group which may be the same or different. The organic group is not particularly limited and includes, for example, an alkyl group having about 1 to 12 carbon atoms; a phenyl group and a benzyl group which may have a substituent; an acyl group such as an acetyl group, a propionyl group and a benzoyl group; Is mentioned. n is an integer of about 1 to 5, where n is 1 as monoethylene glycol ethers, and n is 2 or more as polyethylene glycol ethers.

Among the monoethylene glycol ethers, examples of the monoether compound include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monoisopropyl ether,
Ethylene glycol monobutyl ether, ethylene glycol monoisobutyl ether, ethylene glycol monoisoamyl ether, ethylene glycol monophenyl ether, ethylene glycol monobenzyl ether, ethylene glycol monoacetate, etc., as diether compounds, for example, ethylene glycol dimethyl ether, ethylene glycol diphenyl ether And the like. Preferred are ethylene glycol monoisobutyl ether, ethylene glycol monoisoamyl ether and the like.

Among the polyethylene glycol ethers, examples of the monoether compound include diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate, triethylene glycol monoethyl ether, and tetraethylene glycol monoethyl. Examples of ethers and diether compounds include diethylene glycol dimethyl ether, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate, and triethylene glycol dimethyl ether. Preferred are diethylene glycol monoethyl ether , triethylene glycol dimethyl ether and the like.

The above compounds can be used alone or in combination of two or more. Although the above compounds include compounds having a low flash point, it is preferable to use a compound having a flash point of 50 ° C. or higher from the viewpoint of work safety.
Also, the use of ethylene glycol monoethers, diethylene glycol mono and diethers is preferred from the standpoint of availability.

The amount used is usually 0.1 to 20 parts by weight, preferably 0.5 to 20 parts by weight, per 100 parts by weight of the solid content of the polymer dispersion.
To 10 parts by weight. If the amount is less than 0.1 part by weight, it is difficult to suppress the blister resistance, and if it exceeds 20 parts by weight, the blister resistance does not change even if it is used more.

The adhesive composition for backing textiles of the present invention can be produced by adding a predetermined amount of each of the above-mentioned components to a polymer dispersion and uniformly dissolving and dispersing the same. The adhesive composition of the present invention may contain, if necessary, a surfactant, a dispersant, a thickener, a vulcanizing agent, a vulcanization accelerator, an antioxidant, a coloring agent, a fungicide, and an anti-mite agent. And a compounding agent such as an antifoaming agent.

The adhesive composition of the present invention can be used in a non-foamed state or in an expanded state of about 1.1 to 20 times to produce carpets such as tufted carpets, knitted carpets and hook carpets, artificial grass, and the like. For backing treatment of moquettes, etc. (sticking of piles) and bonding of secondary base fabrics. Also, dimensional stability and elasticity of fiber sheets for transportation of automobiles, trains, ships, airplanes, etc., and various upholstery fabrics. It can be used for application and bonding of secondary fabric.

[0017]

Next, the present invention will be described more specifically with reference to examples and comparative examples. Parts and percentages in each of Examples and Comparative Examples are based on weight.

Examples 1-4, Comparative Examples 1-3 Acid-modified SBR latex (Nipol manufactured by Zeon Corporation)
Lx489F) 100 parts (solid content) of sodium polyacrylate (an amount at which the viscosity of each adhesive composition becomes 25,000 cps) and the compounding agents described in Table 1 are uniformly dissolved and dispersed to give a solid content of 75%. An adhesive composition was prepared. The viscosity after each adhesive composition was left at 40 ° C. for 1 week was measured,
The difference from the viscosity immediately after the preparation (the case where the viscosity increased is indicated by + and the case where the viscosity was decreased is indicated by-) is shown in Table 1 as the daily viscosity difference (cps).

The obtained adhesive composition was applied to the back of a tufted carpet having a base cloth of polypropylene and a pile of nylon (filament loop pile 1/8 inch gauge product) at a rate of 1.2 kg (wet) / m ² . Apply evenly,
It was dried in a hot air dryer for 1 minute. In addition, the same treatment as described above was performed using an adhesive composition which was mixed with air and foamed twice. Blister resistance was evaluated by visually observing the state of blister generation after drying.
The evaluation was made in five grades. Table 1 shows the results.

[0020]

[Table 1] (Note) Organopolysiloxane: TPA4 manufactured by Toshiba Chemical Corporation
380 Compound A: butyl cellosolve Compound B: diethylene glycol monobutyl ether Compound C: triethylene glycol dimethyl ether

[0021]

According to the present invention described above, the adhesive for lining textile products has excellent blister resistance regardless of the amount of the filler and the excellent blister resistance even when used in a non-foamed state and a foamed state. A composition is provided. The adhesive composition for backing textile products of the present invention can be used for backing treatment (pile fixation) of carpets such as tufted carpets, knitted carpets and hook carpets, artificial grass, moquettes, etc. It is suitable for dimensional stability, elasticity imparting, bonding of secondary fabrics, and the like to fiber sheets and various upholstery fabrics for transportation such as trains, ships, and airplanes.

Claims (3)

[Claims] 1. An adhesive composition comprising a polymer dispersion and a filler, wherein the adhesive composition comprises an organopolysiloxane and ethylene glycol ethers. Stuff. 2. The adhesive composition according to claim 1, wherein the ethylene glycol ether is a monoethylene glycol ether. 3. The adhesive composition for backing textile products according to claim 2, wherein the monoethylene glycol ether is ethylene glycol monobutyl ether.