JPH04194078A - Noise-insulating curtain and its production - Google Patents

Abstract

PURPOSE:To obtain a noise-insulating curtain having excellent wash resistance, good noise-insulating property and drapability and soft feeling by applying a foamed coating layer on one surface of a cloth. CONSTITUTION:The objective noise-insulating curtain having soft feeling and excellent drapability and resistant to washing can be produced at a low cost by applying a coating emulsion composed mainly of a synthetic polymer (e.g. polyurethane resin) and a foaming agent to at least one surface of a woven or knit fabric or nonwoven fabric made of natural fiber, semisynthetic fiber, synthetic fiber, etc., drying the coating emulsion and heat-treating the product to form a foamed coating layer.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a sound insulating curtain and a manufacturing method thereof, and more particularly, to a sound insulating curtain having excellent sound insulating properties, washing resistance, drapability, and soft texture. and its manufacturing method.゛(Prior art) Conventionally, the method of blocking sound from entering or exiting the room or outdoors through window openings was to close the windows. There was a problem that the effect was inhibited.

Therefore, various soundproof curtains have been proposed.

For example, Japanese Utility Model Application Publication No. 61-86087 discloses that a curtain body is made of polymeric cardboard, one end or both ends of a hollow part of the curtain body is sealed, and water is absorbed into the curtain body to form a gel-like superabsorbent material. There is also a sound insulating curtain filled with a synthetic polymer gel, and Japanese Utility Model Application Publication No. 58-3884 discloses a soft sound insulating sheet made of a synthetic resin mixed with a material with a high specific gravity, and a decorative cloth is pasted on one or both sides of the sheet. In addition, Japanese Patent Application Laid-Open No. 57-148389 discloses a sound insulating sheet made of a flexible high-density filler such as soft rubber, soft synthetic rubber, or soft synthetic resin. A sound insulation curtain is proposed in which a core material is covered with decorative sheets on both sides, and a noise prevention material in which water is sealed between plastic films is proposed in Japanese Patent Application Laid-open No. 61-261547. .

(Problems to be Solved by the Invention) However, such sound insulation curtains have a hard texture and do not have drapability (unsuitable as interior materials).11. The current situation is that the curtains have not yet been completed.

As a result of intensive research into the sound insulation properties of ordinary fabrics, the present inventors have discovered a new sound insulation method that eliminates all of the problems of the existing methods described above, and have completed the present invention.

The purpose of the present invention is to provide excellent sound insulation and washing resistance.

An object of the present invention is to provide a sound insulating curtain having drapability and a soft texture, and a method for manufacturing the same.

(Means for solving problems) In order to achieve the above object, the present invention has the following configuration.

That is, the gist of the first invention is a sound insulating curtain comprising a foam coating layer on at least one side of a fabric,
The gist of the second invention is a method for producing a sound insulating curtain, characterized in that a foam coating agent mainly composed of a synthetic polymer and a foaming agent is applied to at least one side of a fabric, and then heat treated after drying. .

The present invention will be explained in detail below.

The fabrics used in the present invention are cotton and rayon.

Natural fibers such as silk 5 wool, semi-synthetic fibers such as acetate and triacetate, polyester, and nylon.

It is made of synthetic fibers such as acrylic, and blends and weaves of various fibers. Examples of the fabric include woven fabrics, knitted fabrics, non-woven fabrics, and the like.

The foam coating agent used in the present invention mainly contains a synthetic polymer and a foaming agent.

Examples of the synthetic polymer include urethane resins and acrylic resins. Examples of the urethane resin include ether-based and ester-based polyurethane resins, and the polyurethane emulsion can be obtained by the following commonly known method.

That is, it is produced in a solvent system by reacting H 2 in a solvent, emulsified with a commonly known appropriate emulsifier, and the solvent is appropriately recovered.Specific products include, for example, Dainippon Ink Co., Ltd. Bondic 1610, Bondic 1660, Bondic 1640, Izerasox 5404ON, a product of Hodogaya Chemical Co., Ltd., Evanoanol N5-2, a product of NICCA Chemical Co., Ltd. Evaphanol S-5, Evaphanol KH, etc. may be mentioned, and N,N' dimethylformamide solutions of commonly known polyurethane elastomers can also be used.

Furthermore, acrylic resins include methyl acrylate, ethyl acrylate, n-propyl acrylate, isopropyl acrylate, n-butyl acrylate, isobutyl acrylate, cyclohexyl acrylate, benzyl acrylate, 2-ethylhexyl acrylate, and lauryl acrylate.

Tridecyl acrylate, stearyl acrylate, methoxyethyl acrylate, ethoxyethyl acrylate, butoxyethyl acrylate.

Methoxypolyethylene glycol acrylate.

Examples include single or copolymer emulsions of 2hydroxyethyl acrylate, 2hydroxypropyl acrylate, 2hydroxy3chloropropyl acrylate, and 1.4 butylene glycol monoacrylate, or mixed emulsions of these homopolymers.

Foaming agents include ethyleneoxide adducts of linear secondary alcohols of mixed C11 to C15 having about 10 to 50 ethyleneoxide units in the molecule, preferably about 12 to 20 ethyleneoxide units, linear secondary alcohols having 10 to 16 carbon atoms; Ethylenoxide adduct of primary alcohol, 5 to about 50 ethyleneoxide of alkylphenol having 8 to 12 carbon atoms
fatty acid alkalamides such as coconut fatty acid monoethanolamide, disodium N-octadecylsulfosuccinate 5, tetrasodium N-(1°2-dicarboxyethyl)-N- octadecyl sulfosuccinate,
In addition to nonionic and anionic surfactants such as sulfosuccinate ester salts such as cyamyl ester of sodium sulfosuccinate, dihexyl ester of sodium sulfosuccinate, dioctyl ester of sodium sulfosuccinate, etc., distearylpyridinium chloride. , N-coco-aminopropionic acid (N-tallow or N-lauryl derivatives) or its sodium salt, stearyldimethylbenzylammonium chloride, betaine, or cationic or amphoteric surfactants can also be used. The amount used is synthetic polymer 1
The amount is 1 to 20 parts by weight per 00 parts by weight.

In the present invention, it is preferable to add a crosslinking agent to improve the washing resistance of the coating layer.

Examples of the crosslinking agent include dimethylol ethylene urea, dimethoxymethyl ethylene urea, dimethylol glyoxal monourein, ethylene urea derivatives such as dimethoxymethyl-4゜5-dimethoxyethylene urea, dimethylol propylene urea, dimethoxymethyl propylene urea, and dimethoxymethyl. Examples include aminoplast resins such as propylene urea derivatives such as -5゜5-dimethylpropylene urea and dimethoxymethyl-5-hydroxypropylene urea, and uron derivatives such as dimethyloluron and dimethoxymethyluron. The amount is 1 to 15 parts by weight per 100 parts by weight of the combined product. Furthermore, if necessary, latent acidic catalysts, such as ammonium salts such as ammonium chloride, ammonium sulfate, diammonium hydrogen phosphate, etc., which are neutral in the processing bath and become acidic during heating (curing), 2-amino-2-methylpropanol, hydrochloride, etc. Metal salts such as amine salts such as magnesium chloride, zinc nitrate, zinc chloride, zinc sulfide, etc. may also be added.

The above synthetic polymer, foaming agent, etc. are foamed and stirred to a foaming ratio of about 2 to 6 times using a mixer, a continuous foaming device, etc. to form a foamed coating agent. Such foam coating agents can be applied to knife coaters, air doctor coaters, blade coaters,
It is applied to at least one side of the fabric using a reverse roll coater, gravure coater, kiss coater, etc., and dried.

The amount of coating agent to be applied varies depending on the material used for the fabric and the desired sound insulation properties, but it is usually preferred to be 70 to 400 g/mg.If it is not possible to apply such a weight, apply multiple layers such as two or three layers. Also, drying is preferably performed at 90 to 130°C for about 1 to 3 minutes, and after drying, drying is performed at 140 to 170°C for 2 minutes.
Heat treatment is performed for about 5 minutes.

(Function) Since the present invention is constructed as described above, the air bubbles contained in the foamed coating layer absorb sound and have sound insulation properties. In addition, the bubbles contained in the foamed coating layer give it a soft texture and drape properties. Furthermore, since synthetic polymers are used, products with wash resistance can be obtained.

(Example) Hereinafter, the present invention will be explained in detail based on examples.

Example 1 Desizing, scouring, bleaching, mercerizing, and dyed warp yarn count 30 double yarn, weft yarn count 16 double yarn, warp density 140/inch, weft density 57 yarn/inch, basis weight 250 g/m by a commonly known method.
The following coating agent was applied to the cotton hand woven fabric.
100 parts by weight of Yodozol AC-75UV (manufactured by Kanebo N.C., acrylic resin, active ingredient 65%) as a synthetic polymer, Kanebinol YC as a foaming agent.
-81 (manufactured by Kanebo N.C. Co., Ltd.) 5 parts by weight, 3 parts of Sumitex Resin M-6 (manufactured by Sumitomo Chemical Co., Ltd., active ingredient 50%) as a crosslinking agent, Sumitex Accelerator MX as a catalyst (Manufactured by Jumin Kagaku Co., Ltd.) A mixed solution consisting of 0.5 parts by weight was applied to a foaming machine to create a coating agent with a foaming ratio of 3 times, and 200g/
It was applied to a 100% cotton plain weave fabric in an amount of 100% cotton. This was dried at 100° C. for 2 minutes, and then heat treated at 150 tons for 3 minutes to obtain the product of Example 1.

Example 2 The same coating agent as in Example 1 was applied to the product obtained in Example 1 in the same amount, followed by drying and heat treatment in the same manner. The product of Example 2 was obtained.

Comparative Example A product of Comparative Example 1 was obtained by using the same dough as in Example 1 and carrying out the same treatment as in Example 1 except that no foaming agent was used and no foaming was performed.

Next, Example 1. Example 2. Table 1 shows the sound insulation properties, texture, and drape properties of Comparative Example 1 and the unprocessed fabric.

In addition, the sound insulation performance was determined by placing a 1m x 1m product on top of the bell and using the auditory senses of five professional inspectors.
, Slightly poor △, and Poor.

Further, the texture was judged by the touch of five professional inspectors, and was indicated as good ◎, good O1, slightly poor △, and poor ×. In addition, the drapability was visually judged by five specialized inspectors, and was evaluated as Good ◎ and Good ○.

It was indicated as slightly poor △ or poor.

Table 1 As is clear from Table 1, the products obtained in Examples were excellent in sound insulation, texture, and drapability. In addition, the product obtained in the example was washed 10 times in accordance with JIS L0217 103 method, and the sound insulation, texture, and drape properties were similarly evaluated. (I found out something.

(Effects of the Invention) As detailed above, the product obtained by the present invention has sound insulation properties, washing resistance, drapability, and a soft texture, and is extremely useful as a curtain for interior decoration.

Further, the method of the present invention does not require any special equipment and can be provided at low cost, so its usefulness is obvious.

Claims (2)

[Claims] (1) A sound insulating curtain comprising a foam coating layer on at least one side of a fabric. (2) A method for producing a sound insulating curtain, which comprises applying a foam coating agent containing a synthetic polymer and a foaming agent as main components to at least one side of the fabric, drying and then heat-treating.