JPS5890919A - Film lamination of woven cloth - Google Patents

Abstract

PURPOSE:To obtain a laminated film having an emboss matching the texture of a woven cloth by a method wherein a woven cloth is laid on a (semi)transparent film laminated on a cloth the same as said cloth and pressure welded with a flat roll under heat to emboss. CONSTITUTION:A thermal adhesive 13 with a viscosity of 500-1,000 CPS is applied on a woven cloth 12 with a roll coater 14 so that impregnation thereof is caused up to about one-third to one-fifth of the thickness. After the cloth is dried in a drying furnace 5, a (semi)transparent thermoplastic resin film 10' is bonded thereon with a heated nip roll 16 to obtain a laminate 1'. Then, the laminate 1' is heated with a heater 2 while a woven cloth 3' the same as the woven cloth 12 is laid on the film 10', pressure welded with a flat roll 4 to emboss so that the film 10' is laminated to match the texture of the woven cloth 12. Thereafter, the laminate is cooled with a cooling roll 5 to separate the woven cloth 3' which is reeled up with a reeling roll 6 while the product is wound with a winder 7.

Description

DETAILED DESCRIPTION OF THE INVENTION In order to laminate a transparent or translucent thermoplastic resin film (hereinafter referred to as the film) in a manner that matches the weave of a woven fabric, the present invention provides a laminate of a woven fabric and the film. (hereinafter referred to as the laminate), and while a woven fabric same as the laminate is overlaid on the film of the laminate, a film of woven fabric is simultaneously pressed with an E flat roll and embossing/11 bossed. The purpose is to provide a laminating method.

Conventionally, when laminating a film onto a woven fabric.

Many items, such as tablecloths, are intended to prevent water from penetrating and to allow dirt to be easily wiped off. A method for laminating a film on a woven fabric is to apply an adhesive to one side of the film using a roll coater or the like.

It can be attached to a woven fabric using a dry lamination method or a wet lamination method, or there is a method of applying a heat-sensitive adhesive to one side of either the woven fabric or film, letting it dry, and then heat-bonding it. The laminates produced by these methods have a flat surface and are strong, giving the impression that they are laminated with films, and have the drawback that the taste of the woven fabric cannot be fully utilized. Also, as a method of laminating a film in a shape that matches the weave of the woven fabric, when laminating the thermoplastic resin film on the woven fabric, the thermoplastic resin film is heated (2) to soften it, and at the same time, suction is applied from the back side of the woven fabric. There is a method of embedding the softened thermoplastic resin film into the weave, but this method requires quite large-scale equipment and requires quite advanced technology. Moreover, the quality of the product itself cannot be said to be that excellent.

The present invention aims to overcome these conventional drawbacks and provides a method for laminating films that is simple and takes advantage of the taste of woven fabrics.

To explain the present invention in detail below, first, a transparent or translucent thermoplastic resin film (hereinafter referred to as the film) is laminated onto a woven fabric to form a laminate (hereinafter referred to as the laminate).

At this time, a conventional method may be used to laminate the film onto the woven fabric, but some restrictions must be placed on the amount and method of application of the adhesive. In other words, when the film is bitten through the weave of the woven fabric,
If the adhesive is applied only to the convex part of the weave and not to all four parts, even if the film gets embeded in the weave, it will not be able to be bonded and the film will return to its original state.
If the entire woven fabric is impregnated with the adhesive, there will be no problem in adhesion between the film and the woven fabric, but the woven fabric itself will become stiff.

The original texture of the woven fabric is lost. Therefore, it is necessary to take measures to prevent such problems from occurring, but when applying dry laminating adhesive or heat-sensitive adhesive to one side of the film, do not apply the adhesive to the entire surface of one side of the film. Since the adhesive is applied, there will be no unbonded areas, and since the adhesive will not impregnate the fabric, the feel of the fabric will not be impaired. but.

How to do the following? The woven fabric and the film are laminated using
I. When doing so, it is necessary to take measures.

First of all, when wet laminating with a water-based emulsion type adhesive, etc., apply the adhesive to one side of the film, and when laminated with the woven fabric, the adhesive will stick to the woven fabric. It is necessary to set the thickness to be impregnated to a certain degree.

Usually, the appropriate viscosity of the adhesive is 500 to 1.0 OOCpS.

The amount of application may be set so that the thickness of the woven fabric used is impregnated with the woven fabric. Second, when applying a heat-sensitive adhesive to one side of a woven fabric and performing calothermal lamination, the amount of adhesive impregnated into the woven fabric depends on the thickness of the woven fabric, as in the case of 1 above. ~ Set 1 to include jump level ~. The appropriate viscosity of the adhesive is 500 to 1,000 CpS. If you set the adhesive conditions as described above, there may be some unbonded parts.

By laminating the woven fabric and the film without damaging the texture of the woven fabric. The laminate (1) produced by any of the above methods is heated using a far-infrared heater (as shown in Fig. 1).
2) The film of the laminate is softened and embossed by heating from Ic. At this time, the same woven fabric (3) as that used for the laminate is heated to Layer it on top and press it with a flat roll (4) IC.

In the present invention, the woven fabric used for embossing is:

It may be a long piece or a belt-like item. In the former case, the method shown in Fig. 1 is used, and the woven fabric (3) used is required in the same quantity as the item to be manufactured.

(5) Crimp roller 4) After crimping with the VC, use the cooling roll (
5) After cooling with the V-trowel, it is rolled up with a winding coil (6) while being peeled off. The woven fabric used here is 1 piece of the same woven fabric a.
The product can be used over and over again as long as it is not damaged. (When the heavily used woven fabric is bell-shaped.

As shown in Figure 2, a roll (
Emboss the fabric (9) while moving it between the two rolls. Therefore, in this case, the amount of woven fabric is small and there is no need to wind it up.

By the above method, a laminate can be obtained in which the f, I/rem are laminated in a form that matches the weave, as shown in FIG. 3.

In accordance with the present invention, it is also conceivable that the same woven fabric as the laminate is not used, and that synchronized embossing is carried out using an embossing roll with engravings identical to the weave of the woven fabric. In this case, the embossing roll itself is hard and the woven fabric is
Because it does not occur.

It is difficult to embossing in a manner that is in sync with the weave, also because the weave of the woven fabric itself of the laminate will shift and cause it to crease (6). Therefore, as in the present invention.

If the same woven fabric is used for crimping, when the woven fabrics are overlapped and crimped, the weave will be crimped in a shape that matches the weave of the woven fabric of the laminate, so the weave V will be , and can be laminated in a matching 7 shape.

The IC of the present invention (woven fabrics that are frequently used include cotton, linen, rayon,
Acetate, polyester, vinylon, etc., may be used as long as they can withstand the softening temperature of transparent or translucent thermoplastic resin films that will be used for drinking tomorrow. vinyl.

Polyvinylidene chloride, acrylic, polyethylene.

Polyvinyl alcohol or the like can be used, and the thickness of the film is preferably about 10 to 50 μm. If a thick film is used, the texture of the woven fabric will be affected, so it may be selected depending on the purpose.

As described above, the present invention involves laminating a transparent or translucent thermoplastic resin film (hereinafter referred to as the film) on the surface of a woven fabric, and embossing the laminate without heating. In the step of forming the laminate, a woven fabric with the same strain as that used for the laminate is applied to the IC layer on the film of the laminate, and at the same time, the film is embossed by pressing with a flat roll. Since the film is laminated in a shape that matches the weave of the woven fabric, it is possible to obtain a film-laminated woven fabric that expresses the taste of the woven fabric as it is, does not allow water to penetrate, and can easily wipe away dirt that adheres to it.

<Example> As shown in Figure 4-A, cotton woven fabric Q91C, 120-150
Heat bonded at a temperature of ℃, viscosity 5 oocps, resin content 20
Roll coater 04) heat-sensitive adhesive α3 adjusted to
At.

Apply so that it is impregnated with Ht to the thickness of the woven fabric.

Next, the woven fabric coated with this adhesive was dried in a drying oven (1), and then heated with a nip roll (1) heated at 130°C to a plasticizer content of 60% and a thickness of 30%.
A transparent polyvinyl chloride film α0' of μ is heat-bonded to obtain a laminate (1)'. Next, in a method as shown in Fig. 4-B, the laminate (1)' is heated to a far infrared heater (2).
) Ic While heating to about 7180°C, laminate (1)'
By overlaying a cotton woven fabric (3)' identical to the cotton woven fabric used for E lie on the heat-softened transparent polyvinyl chloride surface of the laminate (1)', at the same time press-bonding it with a flat roll (4) IC. Embossed. The embossing cotton woven fabric (3)' used at this time was cooled in the form of a 9MR layer (1)'
) lc and was wound up. As shown in Figure 3, the product manufactured in the second step has a shape that matches the weave, with the film embedded in the weave, and Figure 1 shows that the texture of the woven fabric is similar to that of ICI embossing. Fig. 2 is a process diagram when the woven fabric for embossing is in the form of a belt, Fig. 3 is a cross-sectional view of a product manufactured according to the present invention, and Fig.
Figure A and Figure 4-B are process diagrams in the example.

(1) Laminated product of woven fabric and film, (1) MR product of goose cotton woven fabric and transparent polychlorinated beer film, (2)
'... Far infrared heater, (8)... Long woven fabric for embossing.

(9) (3 so... long cotton woven fabric for embossing, (4)...
Flat roll for crimping, (5)...cooling roll,
(6)...Woven fabric winding device for embossing, (7)...Product winding device +t, (8)...Roll that rotates at the same time as (4), (9)...Belt-shaped embossing Woven fabric, (10
...Transparent or translucent thermoplastic resin film, αO・
... Transparent polyvinyl chloride film, α ■ ... Cross section of woven fabric, α◇ ... Cross section of cotton woven cloth, (B) ... Cotton woven fabric, αa ... Heat-sensitive adhesive, ( 14)... Roll coater 9 (l... Drying oven, (16)... Nip roll (10) Figure 1 Figure 2 Figure 3 Figure 4-A

Claims (1)

[Claims] A transparent or translucent thermoplastic resin film (hereinafter referred to as the film) is laminated on the surface of a woven fabric. In the step of embossing the laminate (hereinafter referred to as the laminate) while heating, a woven fabric identical to the woven fabric used in the laminate VC is overlaid on the film of the laminate and is simultaneously pressed with a flat roll. A method for laminating a woven fabric, characterized in that the film is laminated in a form that matches the weave of the woven fabric by embossing.