JP2001269262A - Shading curtain and manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shading curtain having shading performance that can prevent leaking light caused by a pinhole and providing an ornamental characteristic. SOLUTION: A face layer and a reverse side layer are made from cloth having the same or deferent characteristic in color, design, tissue, or the like. Each of one side is applied with an adhesive layer containing pigment and fire retardant respectively and a resin layer containing a shading material is laminated on the layer. A face laminated body and a reverse laminated body are composed to stick the resin layer to the opposite resin layer each containing the shading material. According to the composition of the invention, two shading layers make it possible to obtain product with thin, light, and more satisfactory in shading ability compared with the case of obtaining high shading ability by one layer that occurs thin part of a layer by protruding of a thick layer or the surface of cloth. In addition, it is possible to select cloth comprising both surfaces freely within suited for the use and it is possible to select materials and processing applicable to the environmental problems which occur when the product is disposed as well as efficiency for the manufacturing processes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-shielding curtain, a blind, a roll screen, and the like used for windows of a building, and more particularly to a high light-shielding performance capable of preventing light leakage due to a pinhole. The present invention relates to curtains capable of achieving both decorativeness as an interior.

[0002]

2. Description of the Related Art As a light-shielding curtain, a black or dark-colored cloth or a decorative cloth and a black cloth are pasted. Many of them are bonded with a resin layer of
In particular, there are many examples of using a heat-welding film. However, 1
In the case of a heat-sealable film having a layer, there is a disadvantage that the film thickness of a portion in contact with a protrusion such as a knot, a nep, a knotted thread or a thick thread on the surface of the fabric to be laminated becomes thin, and as a result, the light-shielding property is impaired. Further, a vinyl chloride-based film which is advantageous for imparting the flame retardancy required of a curtain and which has been frequently used in the past is required to be reviewed from the viewpoint of the environment.

[0003]

SUMMARY OF THE INVENTION In a method of using a heat-welding resin layer excellent in workability in producing a light-shielding curtain with a light-shielding resin layer interposed in an intermediate layer, the surface of a fabric to be bonded is It is an object of the present application to provide a method and a product that reduce the influence of nodules and the like to ensure high light-shielding properties. Further, the use of a non-vinyl chloride resin as the heat welding resin is also included in the subject.

[0004]

Means for Solving the Problems As a means for solving the above-mentioned problems, the present inventors are superior in that a resin containing a light-shielding material is laminated on each of a surface material and a backing material, and the resin layers are laminated to face each other. It was found that light-shielding properties were obtained. The reason for this is that in a single light-shielding resin layer, a thin portion of the layer is generated due to protrusions on the surface of the laminated fabric, and as a result, the light-shielding performance is reduced. However, when two layers are superimposed, the probability of coincidence of defective portions is extremely low, and a remarkably high light shielding performance can be obtained. In order to obtain high light-shielding properties with one light-shielding resin layer, it is necessary to increase the layer thickness in view of safety. Therefore, it is rather thinner and lighter to use two light-shielding layers,
Products with higher light-shielding properties are possible. Further, as materials and processing methods that satisfy environmental problems at the time of product disposal and workability at the time of production, polyurethane resins, polyester resins, or emulsions of ethylene-vinyl acetate copolymer resins as resins other than vinyl chloride are used. It has been found that a dispersion is used alone or in combination, and a sol coating method is employed as a processing method.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The fabric constituting both surfaces of the present invention has no particular restrictions on its color, pattern, woven or knitted structure, and can be freely selected within a range suitable for its use.
Actually, synthetic fibers such as polyester and acrylic,
Woven or knitted alone or in combination with natural fibers such as regenerated fibrous fibers such as Yong, cotton, hemp, etc. Plain weave, twill weave, satin weave, satin weave, and other preferred tissues can be selected. Satin weave is often used as a curtain.
As for the color and pattern, it is possible to freely adopt dyeing, dyeing, printing and the like.

[0006] An adhesive layer is applied to one side of the above fabric, and a pigment and a flame retardant are mixed in the adhesive. The pigment is used to prevent the color of the inner light-shielding layer from affecting the color of the surface fabric, and is generally white or light-colored, but a color that does not impair the color of the surface fabric or pattern is selected. . The flame retardant is for imparting the required flame resistance to the curtain, and is selected from antimony trioxide, aluminum hydroxide, magnesium hydroxide, zinc borate, bromine-based flame retardants and the like. Adhesive is not particularly limited, acrylic, urethane,
A material having an affinity for the heat-welding resin layer such as a polyester-based material is selected, and a solid content of about 40 to 100 g / m ² is applied by an appropriate method.

The heat-welding resin layer containing the following light-shielding material is a layer for achieving the light-shielding property which is the object of the present invention, and has a black pigment such as carbon or other effective light-shielding properties. Use and mix the required amount of materials. As the heat-welding resin, heat-welding polyurethane resin, polyester resin,
Alternatively, an ethylene / vinyl acetate copolymer resin is suitable, and when laminating, an emulsion of these resins,
Alternatively, the dispersions are applied alone or mixed and applied and laminated by a sol coating method. The coating amount is 4
About 0 to 100 g / m ² is appropriate.

Hereinafter, Examples and Comparative Examples will be described. The light-shielding property was evaluated by the following method. The test was performed in a dark room,
A 500-cm light source was placed in a 50-cm square box, and a 20-cm square glass window was provided at the top. A sample was placed there and the number of pinholes was observed. No light was visible at all except for the pinhole.

[0009]

EXAMPLE Adhesive layer 2 in which an adhesive of formulation A containing a white pigment and a flame retardant was applied to one surface of a surface fabric layer 1 which was a satin-woven polyester fabric having a basis weight of 125 g / m ² and a solid content of 60 g / m ^{2 was} applied. And dried at 150 ° C. for 2 minutes. Further, as a second layer, a light-shielding layer 3 coated with an emulsion of a heat-sealable acrylic resin of Formulation B containing a light-shielding black pigment and a flame retardant by a sol coating method so as to have a solid content of 75 g / m ² was formed. And dried at 150 ° C. for 2 minutes. The two three-layer laminated sheets including the front fabric layer 1, the adhesive layer 2, the light-shielding layer 3, and the back fabric layer 6, the adhesive layer 5, and the light-shielding layer 4 are arranged with their heat-welding resin surfaces facing each other. Heat laminating at 150 ° C
Lamination welding is carried out by the method. Table 1 shows the results obtained by collecting four 40 cm square samples from the laminate and evaluating the light-shielding properties.

(Formulation A) Acrylic adhesive manufactured by Nisshin Chemical Co., Ltd .: 60 parts, Vibrin 651-FN Daikyo Chemical's flame retardant Vigor DNF1000, 20 parts Nissan Chemical's flame retardant, Antimon Sol 2550, 20 parts Nisshin Chemical's thickener Vinyblan 390KX-G 1 copy

(Blend B) 100 parts of Nissin Chemical's Acrylic Resin ViniBlan 2623 10 parts of calcium carbonate SS # 80 manufactured by Nitto Powder Chemical Co., Ltd. 20 pigments of Dainippon Ink and Chemicals, Inc. Part 1 of G

COMPARATIVE EXAMPLE Two two-layer laminated sheets having an adhesive layer formed on the same fabric as the embodiment under the same blending and processing conditions were produced, and one of them was formed to a thickness of 1 sheet.
A 00 μm black vinyl chloride film is heat-laminated at 150 ° C. to produce a three-layer laminated sheet. The two-layer and three-layer laminated sheets are laminated so that the black vinyl chloride film is the center, and heat laminated to produce a five-layer laminated sheet having a light-shielding vinyl chloride film interposed therebetween. . The light-shielding property of this product was evaluated in the same manner as in the example.
Shown in

[0013]

[Table 1]

[0014]

The light-shielding curtain of the present invention has the above-mentioned construction, and is excellent in that a resin containing a light-shielding material is laminated on each of the outer material and the lining, and the resin layers are bonded to each other so as to face each other. Light shielding properties can be obtained. That is, in a single light-shielding resin layer, a thin portion of the layer is generated due to a protrusion on the surface of the laminated fabric, and as a result, the light-shielding performance is inevitably reduced. However, in the case of a laminate in which two layers were stacked, the probability of coincidence of defective portions was significantly reduced, and a remarkably high light-shielding property was obtained.

[Brief description of the drawings]

FIG. 1 is an explanatory sectional view showing an embodiment of a light-shielding curtain according to the present invention.

[Description of Signs] 1 Front fabric layer 2 Adhesive layer 3 Light shielding layer 4 Light shielding layer 5 Adhesive layer 6 Back fabric layer

Claims (3)

[Claims] 1. An adhesive layer containing a pigment and a flame retardant is applied to one surface of each of a surface layer and a back layer made of a fabric having the same or different colors, patterns, or textures, and further formed on the layer. A method for producing a light-shielding curtain, comprising: laminating resin layers each including a light-shielding material, and laminating the surface layered body and the back layer laminated body with the resin layers including the light-shielding material facing each other. 2. A resin layer containing a light-shielding material is formed by a sol-coating method using a polyurethane resin, a polyester resin, an emulsion of ethylene / vinyl acetate copolymer resin, or a dispersion alone or in combination. The method for producing a light-shielding curtain according to claim 1. 3. A surface layered product comprising three layers of a cloth having the same or different colors, patterns, textures, etc., an adhesive layer containing a pigment and a flame retardant, and a resin layer containing a light-shielding material. A light-shielding curtain, wherein a back layer laminate is joined at a surface of a resin layer containing the light-shielding material.