JPS61282478A - Lining composition for fiber product - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a composition for lining textile products that is excellent in light resistance, blister resistance, and appearance on the back side.

For pile fabrics and textiles such as tufted carpets, chair upholstery fabrics, automobile seats, aircraft seats, artificial lawns, etc., general Specifically, inorganic fillers such as heavy calcium carbonate and aluminum hydroxide, and various additives such as thickeners are blended as necessary with polymer water dispersions such as SBR latex, natural rubber latex, and polymer emulsions. The composition is lined (backed). The composition of the present invention is used as a lining for pile fabrics and fabrics as described above.

[Conventional technology]

Among the above polymer aqueous dispersions, if SBR latex or natural rubber latex is used as a backing agent, although it may cause nesting, if the product is exposed to sunlight for a long time outdoors, the backing agent will age and its strength will decrease. , or a change in texture or discoloration (
yellowing) may occur, significantly reducing the product value.

On the other hand, in the drying process of textile products coated with a backing agent, if the drying efficiency is improved by increasing the air volume at a particularly high temperature, when the water in the applied adhesive evaporates,
Only the surface dries quickly and forms a film, and the water remaining inside breaks through the dried film on the surface, causing a blister phenomenon that can seriously impair the appearance of the product. This phenomenon can be prevented by incorporating an organopolysiloxane compound into the composition when SBR latex, NBR latex, MBR latex, or natural rubber latex is used as the polymer aqueous dispersion; When a polymer emulsion of a polymer or copolymer obtained using an ethylenically unsaturated monomer such as ester, styrene, or acrylonitrile as the main monomer is used, an orgacud relisiloxane compound is mixed 1/4. It is difficult to prevent the blister phenomenon. For example, JP-A-59-2300
As seen in No. 75, by using a small amount of ammonium compound to dramatically increase the effect of organopolysiloxane, the blistering phenomenon can be prevented even in polymer dispersions mainly composed of acrylic esters. However, when ammonium plates are used, salts may recrystallize and precipitate when cooled from humid or wet conditions, changing the appearance of the backside. This is especially noticeable in winter when the backing surface is colored black.

[Problem that the invention seeks to solve]

(Those using IISBR latex, natural rubber latex, etc. as a backing agent can easily prevent blistering, but have poor light resistance. In addition, those using conventional polymer emulsions as a backing agent have excellent light resistance. However, it is difficult to prevent blistering.

(2) When organopolysiloxane and ammonium oxide are used together to improve the blister resistance of a polymer emulsion, the salt recrystallizes and impairs the appearance of the back side.

[Means for solving problems]

As a result of repeated studies to develop a composition for lining textile products with excellent light resistance, blister resistance, and back appearance, the present inventor found that 100 parts by weight of a polymer emulsion (solid content: 0 to 500 parts by weight of inorganic filler) , a composition characterized by containing 0.03 to 3 parts by weight of an organopolysiloxane compound and 0.5 to 10 parts by weight of an amorphous material consisting of an alkanolamine and an acid achieves the intended purpose. Heading,
K completed the present invention.

[For production]

The polymer emulsion used in the present invention has properties such as pile fabrics such as tufted carpets, upholstery fabrics, automobile seats, aircraft seats, and artificial lawns, pile fixation of fabrics, adhesion of secondary base fabrics, and dimensional stability. used for a purpose. The main purpose of fillers is to be used as bulking agents to reduce costs, but they can also be used to reduce product costs! It is also used to give a sense of volume. Furthermore, the okji/yt' lysiloxane compound is highly effective in preventing the occurrence of the siblister phenomenon when used in combination with an amorphous salt consisting of alkanolamine 7 and e.

The polymer emulsion of the present invention is a polymer acrylic resin emulsion, and monomers having a functional group (for example, ethylenically unsaturated carboxylic acid, (meth)acrylic acid 2
Hydroxyethyl, dihydroxypropyl (meth)acrylate, acrylamide, N-methylol acrylamide) is preferably contained in an amount of 0.5 to 10 i% in the total monomers. Within this range, a product with good adhesive strength, filler dispersibility, viscosity stability over time, water resistance, polymerization stability, etc. can be obtained.

Constituent monomers of this polymer emulsion include, for example, ethylenically unsaturated carboxylic acid alkyl esters (e.g., methyl (meth)acrylate, ethyl (meth)acrylate, n-propyl (meth)acrylate, l-propyl (meth)acrylate , n-butyl (meth)acrylate, l-butyl (meth)acrylate, t-butyl (
meth)acrylate, 2-ethylhexyl (meth)acrylate), ethylenically unsaturated aromatic monomers (e.g. styrene, α-methylstyrene, divinylbenzene), ethylenically unsaturated carboxylic acids (e.g. acrylic acid, methacrylic acid, itaconic acid, maleic acid, 7-malic acid, crotonic acid), and other vinyl monomers (e.g. acrylonitrile, 2-hydroxyethyl (meth)acrylate,
It is a polymer emulsion consisting of a single or copolymer of (2-hydroxypropyl (meth)acrylate, acrylamide, N-methylolacrylamide). The polymer emulsion is prepared by adding an emulsifier and an emulsifier in an aqueous medium by a known method.
It can be produced by emulsion polymerization using a polymerization initiator, a chelating agent, and a molecular weight regulator.

As the emulsifier used in the production of the polymer emulsion used in the present invention, anionic and nonionic surfactants used in ordinary polymerization can be used. For example, examples of the anionic surfactant include sulfate ester salts of higher alcohols, sodium alkylbenzenesulfonates, aliphatic sulfonates, fatty acid soaps, and the like. Examples of the nonionic surfactant include common polyethylene glycol alkyl ethers, alkyl esters, alkylphenyl ethers, etc., but in order for the composition of the present invention not to generate blisters, it is also important to have excellent strength and water resistance. In order to maintain this, it is desirable that the amount of emulsifier used during polymerization is no greater than ts parts by weight, which is equivalent to 100 parts by weight of the solid content of the polymer emulsion.

Polymerization initiators include water-soluble initiators such as anthonium persulfate, sodium persulfate, and potassium persulfate, oil-soluble initiators such as benzoyl peroxide, or redox systems that combine them with hydrogen peroxide/ferrous sulfate. Any initiator can be used.

Molecular weight regulators, chelating agents, inorganic salts, etc. that are known in emulsion polymerization can be used.

As the filler used in the present invention, bicarbonate calcium carbonate, aluminum hydroxide, clay, talc, etc. can be used alone or in combination. The amount used is 0 to 500 parts by weight per 100 parts by weight of the solid content of the polymer dispersion.

If you dislike the white color of the backing layer caused by the filler, you may not use the filler, but it is generally preferable to increase the amount of filler because it tends to improve the blister resistance. The amount used is 100 to 400 parts by weight.

500! ! If the amount exceeds a certain amount, titration-specific physical properties cannot be obtained.

The substance having an anti-blister effect used in the present invention is a combination of an organopolysiloxane compound, a salt consisting of an alkanolamine and an acid, or it is difficult to prevent blister even when used alone. Organopolysiloxane compounds are disclosed in Japanese Patent Publication No. 40-21427 and Japanese Patent Publication No. 47-1.
No. 9604, JP-A No. 50-24336, U.S. Patent No. 3
No. 246339, No. 3255140, British Patent No. 1
No. 141867, for example, no-C,H,0-CT(, (CH,), S I 0-
E-(CM,), Stoysss(Cm,
4o=C4H,0H()10-CH,CHIN-CH,
-8l (CH, $-8l +CH3), -C)T, -
Dimethylpolysiloxane-alkylene oxide copolymers such as N(CH,%OH) are preferably used, and commercially available products include, for example, TPA4380 and TPA4390 (products of Toshiba Silicon Co., Ltd.).

The amount used is 0.03 to 3.0 parts by weight per 100 parts by weight of the solid content of the polymer emulsion. If the overlapping area is less than 0.03, it is impossible to prevent blistering.
However, even if the amount exceeds 3.0 parts by weight, no further blister-preventing effect can be obtained.

Salts used in combination with organopolysiloxane compounds include:
It must be an amorphous salt of an alkanolamine and an acid. When the crystalline ammonium salt of yostoic acid is cooled from a humid or watery state, it may precipitate as crystals and impair the appearance of the back surface.

As the alkanolamine, primary, secondary, and 6th-class ethanolamine, glopanolamine, etc. can be used.

Examples of acids include non-fluoric acids such as hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, and carbonic acid, and fluoric acids such as formic acid, acetic acid, fumaric acid, maleic anhydride, oxalic acid, and citric acid. These salts also act as a fusion agent for the crosslinking reaction when a carboxylic acid monomer in the emulsion and a self-crosslinking monomer such as N-methylolacrylamide are used. Preferred salts include, for example, monoethanolamine sulfate. Addition of salt: 0.5 to 100 parts by weight of solid content of the 11-polymer emulsion
It is 101゛ scenery part. If the amount is less than 0.5 parts by weight, the anti-blister effect will be weak, and if it is more than 10 parts by weight, the strength and water resistance will decrease, which is not preferable.

Furthermore, the composition of the present invention may optionally include a dispersant, a crosslinking agent,
There is no problem in incorporating conventional additives such as defoamers, thickeners, preservatives and pigments. The organopolysiloxane compound, alkanolamine, and acid base may be added to the polymer emulsion together with other ingredients during the preparation of the composition, or may be added to the polymer emulsion in advance during or after polymerization. good.

The composition of the present invention can be applied to all textile products whose back side is treated with a polymer emulsion, including carpets, artificial lawns, moquettes, etc.

Next, the present invention will be specifically explained using examples. All parts of ingredients in each example indicate parts by weight of solid content.

Synthesis Example (Synthesis of Polymer Emulsion) 100 parts of water and 10 parts of Nucol 271A (sodium alkyl diphenyl ether sulfonate; Nippon Nyukazai ■) are charged into a reaction vessel equipped with a stirrer, a reflux condenser, a dropping funnel, and a thermometer. Next, a mixture of 90 parts of ethyl acrylate, 7 parts of acrylonitrile, 2 parts of N-methylol acrylamide, and 3 parts of acrylic acid, 15 parts of ammonium persulfate, and 15 parts of sodium chloride sulfate were added dropwise over 4 hours to bring the reaction temperature to 60. Emulsion polymerization was carried out at
part was added. The polymer emulsion (2) thus obtained had a solid content of 50%, a pH of 4.5, and a viscosity of 70 cps.

Comparative Synthesis Example (Synthesis of SBR7 Tex) In a pressure-resistant polymerization vessel equipped with a stirrer, 120 parts of water, 27iAtO parts of Anycol,
05 parts of sodium ethylenediaminetetraacetate, 2 parts of potassium persulfate Q, and then 50 parts of styrene, 47 parts of butadiene, 3 parts of acrylic acid, and 5 parts of tertiary dodecyl mercaptan cL were charged, and after sufficient nitrogen purging, the temperature was 60~
The reaction was carried out at 70°C for 10 hours. The obtained 2tex was adjusted to pH t-a O with an aqueous potassium hydroxide solution, then steam and nitrogen blowing was performed to remove residual motumar, and finally the solid content and pH were adjusted, and the solid content was 50% and the viscosity was 150 cps. , pHao SBR latex ■ was obtained.

[Example 1] 100 parts of the polymer emulsion of the synthesis example, 300 parts of heavy calcium carbonate (SS30 powdered ■), organopolysiloxane compound (TPA4380: Toshiba Silicon ■)
Blend 6 parts of a, to parts of monoethanolamine hydrochloride,
Furthermore, sodium polyacrylate (Aron A 2
0 L:, Toagosei ■) 6.2 parts, dispersed pigment (Disp
erse Black 5D-9020) 1.0 part and water to adjust the solid content to 70% and viscosity to 1.
A composition of 5,000±11,000 eps (measured value at 25° C. with B-type rotational viscometer, No. 4 rotor 121-pm) was obtained. Next, in order to measure the viscosity change of the composition over time, this composition was placed in a glass sample bottle with a lid, the bottle was tightly sealed, and the bottle was kept for 2 hours.
The viscosity was measured after being left at 5°C for 10 days and after being left at 40°C for 10 days. Next, this composition was evenly applied to the back side of an artificial lawn greige whose base fabric was polypropylene and pile was nylon so that the amount of application was tOkl//m' (wet), and the temperature was immediately raised to 150°C. , wind speed 1
After drying in a hot air dryer at 5 m/sea for 7 minutes, the state of blistering was observed with the naked eye. Next, this composition was applied to an artificial lawn in the same manner, and after drying, the applied surface was irradiated for 200 hrs in a fade meter, and the presence or absence of cracks and the degree of hardening of the texture were observed. These results are shown in Table 1, and it can be seen that this composition of the present invention has no viscosity change over time and has extremely excellent blister resistance and light resistance.

In addition, the appearance of the back surface did not change at all even if the backing was immersed in water for about 10 seconds, then taken out and left at room temperature of 25°C for 1 hour, and then left at 0°C for another hour. Ta.

[Example 2] 3.0 parts of 2-amino-2-methyl-1-propatur hydrochloride as a base, 3 parts of sodium polyacrylate as a thickener
．． A composition having a solid content of 70% and a viscosity of 15,000 cpa was prepared in exactly the same manner as in Example 1 except that 5 parts were used.

Next, the viscosity stability over time, blister resistance, light resistance, and appearance of the back surface were measured in the same manner as in Example 1. The results were extremely excellent as shown in Table 1.

[Example 3] Implemented except that 2 parts of organopolysiloxane compound, 3.5 parts of monoethanolamine hydrochloride, 2.8 parts of sodium polyacrylate as a thickener, and no heavy calcium carbonate was used. Solid content 7 in exactly the same manner as Example 1
A composition with a viscosity of 15,000 cps was prepared.

Next, the viscosity stability over time, blister resistance, light resistance, and appearance of the back surface were measured in the same manner as in Example 1. The results were extremely excellent as shown in Table 1.

[Comparative Example 1] Completely the same method as Example 1 except that 3.0 parts of an organopolysiloxane compound and 2.7 parts of sodium polyacrylate as a thickener were used, and that monoethanolamine hydrochloride was not added. A composition having a solids content of 70% and a viscosity of 15,000 epa was prepared.

Next, the viscosity stability over time, blister resistance, light resistance, and appearance of the back surface were measured in the same manner as in Example 1. The results are in Table 1
As shown in Figure 2, this composition had poor viscosity and oral stability, and also poor blister resistance compared to the composition of the present invention.

: Comparative Example 2] Solidification was carried out in exactly the same manner as in Example 1, except that 6.0 parts of monoethanolamine hydrochloride and 4.0 parts of sodium polyacrylate as a thickener were used, and no organoborisiloxane was added. - The properties, light resistance, and appearance of the back surface were measured. As shown in Table 1, this composition, which does not contain an organopolysiloxane compound, has very poor blister resistance.

[Comparative Example 3] Example 1 except that 2.5 parts of ammonium sulfate was used instead of 2.5 parts of monoethanolamine hydrochloric acid group as the base.
Solid content 70%, viscosity 15000 cp using exactly the same method as
The composition of a was seasoned.

Next, the viscosity stability over time, blister resistance, light resistance, and the condition of the back surface were observed in the same manner as in Example 1. The results are in Table 1
As shown in Figure 2, the viscosity stability over time, blister resistance, and light resistance were good;
After leaving it for a while, I looked at the back and found that only the part that had been immersed in water had turned white.

[Comparative example mark]

A solid content of 70% was obtained in exactly the same manner as in Example 1, using 500 parts of heavy calcium carbonate and 4.0 parts of sodium polyacrylate as a thickener, and without adding the organopolysiloxane compound and acid ammonium salt. %, viscosity 150
A composition of 00 cpa was prepared.

Next, the viscosity stability over time, blister resistance, light resistance, and appearance of the back surface were measured in the same manner as in Example 1. The results are in Table 1
As shown in Figure 2, despite the large amount of filler, this composition, which did not contain an organopolysiloxane compound or a platform, had poorer blister resistance than the composition of the present invention.

[Comparative Example 5] Using 100 parts of SBR latex ■ of Comparative Synthesis Example and 2.5 parts of sodium polyacrylate as a thickener, the solid content was reduced to 70 in the same manner as in Example 1, except that ammonium sulfate was not added. % and a viscosity of 15,000 cps.

Next, the viscosity stability over time, blister resistance, light resistance, and appearance of the back surface were measured in the same manner as in Example 1. The results are in Table 1
As shown in (1), this composition, in which an organopolysiloxane compound was added to SBR latex, had poor oral viscosity stability and poor light resistance.

[Comparative Example 6] 100 parts of SBR latex ■, nonionic activator (polyoxyethylene nonylphenyl ether, Neugen EA1
20 Daiichi Kogyo Seiyaku ■) 2 parts, organopolysiloxane compound a 3 parts, sodium polyacrylate as a thickener 2.
A composition having a solid content of 70% and a viscosity of 15,000 apH was prepared in the same manner as in Example 1 except that 5 parts of monoethanolamine was used and monoethanolamine was not added.

Next, the viscosity, oral stability, blister resistance, appearance of the back surface, and light resistance were measured in the same manner as in Example 1. The results are in Table 1
As shown in (1), this composition containing SBR latex had poor light resistance.

Claims (1)

[Claims] 1. 100 parts by weight of polymer emulsion (solid content), 0 to 500 parts by weight of filler, 0 organopolysiloxane compound
．． 1. A composition for lining textile products, comprising 0.03 to 3 parts by weight, and 0.5 to 10 parts by weight of an amorphous salt consisting of an alkanolamine and an acid. 2. The composition for lining textile products according to claim 1, wherein the filler is one or more inorganic fillers selected from ground calcium carbonate, aluminum hydroxide, clay, and talc. 3. The composition for lining textile products according to claim 1, wherein the organopolysiloxane compound is a dimethylpolysiloxane adduct of polyalkylene oxide.