JPS5930819B2 - self-adhesive interlining - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing interlining having self-adhesive properties.

Conventional manufacturing methods for adhesive interlining based on woven fabric include scattering, coating, spraying, laminating, transferring, printing, etc. adhesive resin on gray fabric in granular, random, uniform, spider web shapes, or the entire surface. There are two methods of rubbing, but each method is complicated and has problems such as weak adhesive strength between the adhesive resin and the woven fabric constituting the interlining.

However, since the fibers that make up the woven or knitted fabrics themselves have thermal adhesive properties, the present invention is completely different from conventional products and has excellent properties such as very good adhesion, double-sided adhesion, and reusability. This is a method for producing a self-adhesive interlining.

That is, composite or mixed spun fibers are made of a thermoplastic polymer substance A that has fiber-forming ability and a thermoplastic polymer substance B whose melting point is 50°C or more lower than that of A, and in which the B component constitutes part or all of the fiber surface. A method for producing a self-adhesive interlining, characterized in that 50% or more of component B is fused by heat-treating a woven or knitted fabric containing 20% or more at a temperature higher than the softening point of component B and lower than the melting point of component A. Unlike conventional products, since the adhesive resin itself constitutes the base fabric, the adhesive force is extremely strong.

The adhesive component B is fused by heat treatment, resulting in a structure that substantially covers the surface of the woven or knitted fabric, resulting in an interlining that can be bonded to both the front and back surfaces.

Furthermore, since component B comes out from inside the base fabric through heat treatment, it comes out to the surface and fuses with each ironing or pressing, and adheres to the object to be adhered.

That is, it can be used repeatedly 2 to 3 times, and there is no decrease in adhesive strength during use.

Further, since the interlining of the present invention can be bonded on both sides, it has very good shape stability even when worn for a long period of time, and there is no fear of deformation or peeling even after washing.

Furthermore, since it can be used repeatedly two or three times, it has the important advantage that it is possible to correct or redo the adhesion during sewing.

Thermoplastic polymer substance A having fiber-forming ability as used in the present invention
refers to a melt-spun polymer, preferably polyester, polyamide, etc.

Polyesters are aromatic or aliphatic dicarboxylic acids such as terephthalic acid, isophthalic acid, naphthalene-2,6-dicarboxylic acid, adipic acid, and sebacic acid, or their esters, and ethylene glycol, diethylene glycol, 1,4-butanesiol, It is a polyester synthesized from a diol compound such as neopentyl glycol or dichlorohexane-1,4-dimetatool, and polyethylene terephthalate is particularly preferred.

Further, the above components may be copolymerized with polyalkylene glycol, glycerin, pentaerythritol, methoxypolyalkylene glycol, bisphenol A, sulfoisofucuric acid, or the like.

Furthermore, polyesters synthesized by self-condensation of oxycarboxylic acids and polyesters in which 70% or more of the repeating structural units are oxycarboxylic acid polymers can also be used.

Examples of polyamides include polycaprolactam, polyhexamethylene adipamide, and polymetaphenylene isophthalamide.

In the present invention, component 5B is a thermoplastic polymer substance that can be melt-spun and has a melting point 50°C or more lower than the melting point of component A,
More preferably, the melting point is 180°C or lower.

As component B, for example, polyethylene, polypropylene,
Included are polyolefins such as polybutene-1 and polypentene-1, polystyrene, polyamide, polyvinyl chloride, polyvinylidene chloride, polyurea, polyurethane, and the like.

Polyethylene includes all products produced by low pressure, medium pressure, and high pressure methods.

Polyamides include nylon 10, nylon 11, nylon 88, nylon 1010°, or copolymerized nylon made by mixing and copolymerizing different types of aminocarboxylic acids or dibasic acids and diamines during normal nylon polymerization to have a melting point of 200°C or less. is included.

Polyvinylidene chloride refers to a copolymer of vinyl chloride, acrylonitrile, ethyl acrylate, methacrylate, and the like.

Polyurea also includes its copolymers.

The composite or mixed spun fibers referred to in the present invention can be obtained by known side-by-side type, core-sheath type or multicore-sheath type composite spinning methods, chip blend type, melt-mixing type mixed spinning methods, and the like.

The melt-mixing type mixed spinning method referred to here refers to the two polymers being discharged using separate gear pumps, forming multilayers, joining, and
This is a spinning method that combines splitting operations.

The composite or mixed spun fibers used in the present invention must have component B forming part or all of the fiber surface, examples of which are shown in FIGS. 1 to 24.

The proportion (b%) of component B in the composite fiber is preferably 20% or more.

The woven or knitted fabric used in the present invention may contain 20% or more of the composite or mixed spun fibers, and other constituent fibers may be ordinary synthetic fibers or natural fibers.

More preferably, the proportion of the fiber used in the interlining is B%
It is a woven or knitted fabric in which (B≧20) and Xb satisfies 30%≧□≧10%.

00 That is, when 10% or more and 30% or less of the interlining is composed of the self-adhesive component B, the strong adhesiveness, double-sided adhesiveness, and repeatability that are the characteristics of the present invention are effectively exhibited.

If the B component exceeds 30% of the interlining, problems such as the adhesive resin oozing out onto the surface of the adherend occur, which is not preferable.

The composite or mixed spun fibers are used in the warp and/or weft of textiles and are woven or knitted.

When used as warp threads of textiles, it can be used as a non-sizing thread by heat-sealing it at a temperature higher than the melting point of component B, which performs sizing. This is preferable because it improves adhesive performance.

The self-adhesive interlining of the present invention can be obtained by heat-treating the woven or knitted fabric obtained by the above method at a temperature higher than the softening point of component B and lower than the melting point of component A.

The heat treatment referred to here is an operation in which component B is softened or melted and thermally fused, and more preferably, the base fabric is heated under tension at a temperature that is higher than the softening point of component B and lower than the melting point of component A. This is an operation in which the surface of the fused B component is covered.

By this operation, component B is almost uniformly fused to the woven or knitted fabric, and can impart adhesiveness, bending rigidity, etc. necessary for an adhesive interlining.

Here, the substantially fused state is a state in which the heat-fused component B also occupies the space of the woven or knitted material, and at the same time the surface of the woven or knitted material is uniformly covered.

The self-adhesive interlining thus obtained has adhesive properties on both sides due to the presence of a thermoplastic polymer substance with adhesive properties on the front and back sides of the fabric, and therefore has a high adhesive strength with the adhered object. It is extremely strong and has no problems with deformation or peeling.

It can also be used as a single-sided interlining by applying a release agent or release paper to one of both sides and attaching it to one side, and then removing the release agent or paper later.

Furthermore, by stacking and bonding interlining materials in multiple layers, it is possible to obtain an interlining material of arbitrary hardness and thickness.

In particular, it differs from ordinary interlining in that it is suitable for adhesion to three-dimensional structures.

That is, when adhering a conventional interlining to a three-dimensional structure, it was difficult to adhere the interlining to the object due to bending or sagging of the interlining.

However, in the case of the interlining of the present invention, adhesive resin exists inside the fibers, and as it moves to the surface by ironing, pressing, etc., most of the bending and sagging of the base fabric gets into the resin during bonding. Enables adhesion to three-dimensional objects.

Due to this excellent performance, it is very easy to adhere to three-dimensional structures.

In addition, this double-sided adhesive interlining can be re-adhered or corrected during sewing, and does not lose its shape or peel when washed, making it extremely suitable as an interlining for collars and cuffs of dresses and shirts. ing.

Although the main application of the present invention is adhesive interlining, it can also be used for canvas, tents, etc.

The present invention will be explained below with reference to Examples.

Example I Composite fiber (b = 40%) 250d/
A heat-fused yarn is made by retaining 48f in hot air at 130℃ for 30 seconds using a slasher-type warper, and this is used as the warp yarn, and regular polyester fiber 250 d/48f is used as the weft yarn. woven fabric (13=50%)
made.

Xb The amount of B component in this fabric is □=20%.

This sample was treated for 1 minute in hot air at 180°C using a pin tenter.

The surface of the base fabric was substantially covered with fused polyethylene.

This material was used as an interlining material for the collar of a cutter shirt made of a polyester/cotton blend.

Since it has adhesive properties on both sides, it had very good adhesion to fabrics and did not lose its shape at all.

When it was ironed after washing, it became more adhesive and had very good form stability.

Example 2 Polyamide fiber 150d/16f for warp yarn, A for weft yarn
Component: 50 parts of polyamide, component B: 5 parts of copolymerized polyamide
A taffeta fabric was made by alternately implanting 0 parts of composite fibers 150d/12f and polyamide fibers 150d/16f shown in FIG. 20.

This Xb B of the item is 25% and □=12.5%.

00 This fabric was subjected to tension heat treatment for 1 minute using a heat setter at 200°C.

The copolyamide was heat fused and practically covered the surface of the fabric.

This material had a peel strength of 500 f/in and was suitable for the collar of a dress.

In addition, it was also possible to bond the sample once used again with an iron.

Comparative example 1 Composite fiber 1: Ordinary PoXb This was done using Liamide fiber 2.

Textiles: □-8,300 %.

Since this interlining had a small amount of component B, its adhesive strength was slightly insufficient compared to that obtained in Example 2.

Comparative example 2 A woven fabric was created using the same yarns as in Example 1.

If this was used as an interlining without heat treatment, the adhesive force would be low and the shape would easily deform due to the small amount of heat-fused component B.

Comparative example 3 The composite fiber used in Example 1 was made into warp yarn and weft yarn Xb. It was used to make textiles.

This thing's □-4000 %Met.

Next, tension heat treatment was performed for 1 minute using a heat setter at 180°C to obtain an interlining.

Since this interlining contains a large amount of component B, the adhesion was strong, but there was a slight problem with oozing.

Example 3 A 16 count single spun yarn consisting of 150 d/48 f of polyester fiber in the warp yarn, 50 parts of polyester as component A and 50 parts of polyethylene as component B in the weft yarn, having a cross section as shown in Fig. 11, was wound. Reduction number: 10 strands/in, average fiber length: 5111
An Xb weave was made using a composite fiber consisting of Lm.

At this time, B is 50% and □-2500 %.

This fabric was passed through a heat setter at 185° C. under tension for 1 minute to bring the B component into a substantially fused state.

This self-adhesive interlining exhibited good performance as in Example 1.

[Brief explanation of drawings]

Figures 1 to 24 attached as drawings are schematic diagrams of cross-sections of composite or mixed spun fibers that can be used in the present invention. In FIG. 1, A indicates a thermoplastic polymeric substance A having fiber-forming ability, and B indicates a thermoplastic polymeric substance B whose melting point is 50° C. or more lower than that of A. This relationship is applied in exactly the same manner to FIGS. 2 to 24.

Claims (1)

[Claims] 1. Thermoplastic polymeric substance having fiber-forming ability (component A)
and a thermoplastic polymer substance (component B) whose melting point is 50°C or more lower than that of component A, and the composite or The mixed spun fibers have a mixing ratio B of 20%.
A self-adhesive interlining made of the above woven or knitted fabric, characterized in that the relationship Xb between the width and B in the woven or knitted fabric is 30%≧□>10%.