JPH0246712B2 - SETSUCHAKUSHINJI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an adhesive interlining for interlining having a soft feel and excellent durability.

(Prior Art and its Problems) Generally, adhesive interlining is made of a non-woven fabric in which fiber webs are bonded together with an emulsion resin binder, with a heat-adhesive resin adhered to one side of the non-woven fabric.

However, when these adhesive interlinings are bonded to the outer material, both the emulsion resin binder and the thermoadhesive resin are present on the side that contacts the outer material, so the amount of resin in that area becomes extremely large, resulting in poor texture. The drawback was that it was hard and uncomfortable to wear.

To solve this problem, it is possible to reduce the amount of at least one of the thermoadhesive resin and the emulsion resin binder, but reducing the amount of the thermoadhesive resin reduces the adhesion between the interlining and the outer material; Reducing the amount of the emulsion resin binder was not sufficient because it caused a problem in that the durability and strength of the interlining itself, such as pilling resistance and washing resistance, decreased.

(Objective of the Invention) The present invention was made in order to eliminate the drawbacks of the above-mentioned prior art, and its object is to obtain an adhesive interlining having a soft feel and excellent durability.

(Structure and operation of the invention) The present invention provides a first
a fiber layer and a second layer substantially free of the non-water retaining fibers;
a fiber layer, the constituent fibers of the first and second fiber layers are bonded by a water-based emulsion resin binder, and the binder ratio of the first fiber layer is set to the second fiber layer.
This adhesive interlining is characterized in that a thermoadhesive resin is attached to the surface of the first fiber layer side of a nonwoven fabric whose binder ratio is smaller than that of the fiber layer. That is, the adhesive interlining of the present invention contains 15% by weight of non-water retaining fibers.
Utilizing the fact that the first fiber layer contained above exhibits non-water retaining properties, the water-based emulsion resin binder is distributed such that the binder ratio in the first fiber layer is smaller than the binder ratio in the second fiber layer. A thermoadhesive resin is attached to the surface portion of the first fiber layer having a small binder ratio. Therefore, the total amount of resin present in the first fiber layer in contact with the outer fabric of the adhesive interlining of the present invention is reduced, so that even when bonded to the outer fabric, the texture remains soft.
In addition, since a sufficient amount of binder is present in the second fiber layer, it has excellent durability.

Next, the present invention will be explained in more detail using the drawings. The drawing is a cross-sectional model diagram of the adhesive interlining of the present invention.

The first fiber layer 1 of the present invention has non-water retaining fibers 215 to
100% polyester by weight and usually used for interlining,
Nylon, polyacrylonitrile, acetate,
It is composed of 385-0% by weight of synthetic fibers such as rayon. The non-water-retentive fibers 2 in the present invention refer to fibers that, when formed into a web alone, have a lower ability to retain water-based emulsion than webs formed from fibers such as polyester, nylon, and rayon. As a guideline for the water-based emulsion holding ability of this non-water-retaining fiber 2, for example, a 100% non-water-retaining fiber web with a basis weight of 50 g/m ² and a 100% polyester fiber web have a basis weight of 50 g/m2.
% web is dipped in water-based emulsion under the same conditions and squeezed with a mangle, 100% non-water-retentive fiber.
It is desirable that the amount of aqueous emulsion retained by the web is 70% or less of the amount retained by a 100% polyester web. As the non-water-retentive fiber 2 of the present invention, fibers obtained by treating synthetic fibers such as polyester, nylon, and rayon with silicone resins, fluorine resins, quaternary ammonium salts, etc. are preferably used, and in particular, polyester fibers, which are hydrophobic fibers, are preferably used. Those treated with silicone resin are preferred because they have excellent non-water retaining properties and flexibility. In order for the first fiber layer 1 to exhibit non-water retaining properties, at least 15% by weight of non-water retaining fibers is required. It becomes impossible to make the ratio sufficiently smaller than the ratio. In addition, if the non-water retaining fiber exceeds 90% by weight, the bonding strength may decrease and the durability and strength may decrease, but for example, it is possible to apply a thermoadhesive resin in the form of large dots with a large amount of resin. If you use the method of pressing with a calendar roll after bonding the interlining and outer material, this thermoadhesive resin will work to bond the constituent fibers of the first fiber layer, so there will be no decrease in durability or strength. . However, a particularly preferred amount of non-water retaining fibers 2 is 20 to 80% by weight based on the fiber weight of the first fiber layer 1.

The second fiber layer 5 of the present invention is composed of synthetic fibers 3 such as polyester, nylon, polyacrylonitrile, acetate, and rayon, which are usually used for interlining, and preferably does not substantially contain non-water retaining fibers. The expression "substantially" used here means that it is originally desirable to contain no non-water-retentive fibers at all, but if manufacturing involves a needle-punching process, for example, the non-water-retentive fibers of the first fiber layer 1 This is because there is a possibility that the fibers may move slightly to the second fiber layer 5. In order to improve the retention of the aqueous emulsion, it is more preferable that the second fiber layer 5 is a fiber layer mainly composed of hydrophilic fibers.

The weight ratio of the first fiber layer 1 and the second fiber layer 5 is preferably 20:80 to 70:30, and 20:80.
If the ratio of the first fiber layer 1 is smaller than 70:30, it will not be possible to obtain an adhesive interlining with a soft texture, and if the ratio of the second fiber layer 5 is larger than 70:30, the strength and durability of the interlining will decrease, and the interlayer Peeling is more likely to occur. In addition,
The first fiber layer 1 and the second fiber layer 5 may be stacked in three or more layers, for example, by combining several layers of the first fiber layer 1 with different amounts of non-water retaining fibers and the second fiber layer 5. It may be laminated, or the first fiber layer 1 and the second fiber layer 5
A fiber layer containing 0 to 15% by weight of non-water retaining fibers may be interposed between the fiber layer and the fiber layer. However, the layer in contact with the outer material, that is, the layer to which the thermal adhesive resin 6 is attached must be the first fiber layer 1.

The constituent fibers of the first fiber layer 1 and the second fiber layer 5 are bonded by a water-based emulsion resin binder 4 made of acrylate resin, ethylene-vinyl acetate resin, etc. to form a nonwoven fabric with a basis weight of 20 to 200 g/m ² are doing. The weight ratio of the fibers to the binder 4 (solid content adhesion) in the entire nonwoven fabric is preferably 50:50 to 90:10, and when the ratio of the binder is greater than 50:50, the interlining will have a hard texture. If the fiber ratio is greater than 90:10, the interlining will lack strength and durability.

In order to make the adhesive interlining of the present invention soft and durable when bonded to the outer material,
A nonwoven fabric must be used in which the proportion of the aqueous emulsion resin binder 4 in the first fibrous layer 1 is smaller than the proportion of the binder 4 in the second fibrous layer 5. In this nonwoven fabric, the first fiber layer 1 of the present invention contains 15 non-water retaining fibers 2.
This can be obtained by utilizing the fact that the first fiber layer 1 exhibits non-water retaining properties as a result of containing at least % by weight. That is, when a water-based emulsion is impregnated into a web in which the first fiber layer 1 and the second fiber layer 5 are laminated, the water-based emulsion is difficult to penetrate into the first fiber layer 1, which has a non-water-retentive property, and the water-based emulsion does not easily penetrate into the first fiber layer 1, which has a relatively high water-retentive property. 2 penetrates into the fiber layer 5. Moreover, when this is dried by heating, the water-based emulsion resin binder 4 transfers from the non-water retaining first fiber layer 1 to the second fiber layer 5,
Furthermore, the binder 4 is unevenly distributed in the second fiber layer 5. As a result, the binder ratio of the first fibrous layer 1 becomes smaller and 2
The binder proportion of the fiber layer 5 is increased. Note that the binder ratio here is the weight of the binder (solid content adhesion) divided by the sum of the weights of the binder and fibers.

A thermoadhesive resin 6 for adhering to the outer material is attached to the surface portion of the nonwoven fabric on the first fiber layer 1 side. The thermoadhesive resin 6 may be any material that can be melted and bonded to the outer material by heating at approximately 80 to 170°C using an iron or press, and various resins such as polyester resins, polyamide resins, and polyethylene resins may be used. Synthetic resin is used. If the thermoadhesive resin is in powder form, it is sprinkled, if it is in the form of a paste, it is applied in the form of dots, and if it is in the form of fibers, it is placed directly on the nonwoven fabric or transferred from release paper onto the nonwoven fabric. Approximately 5 to 50 g/m ² is attached to the surface portion of the first fiber layer 1 side.

The thermoadhesive resin 6 serves not only to bond the interlining and the outer fabric, but also to partially bond the constituent fibers of the first fiber layer 1, thereby increasing the strength of the interlining.

To illustrate an example of the method for manufacturing the adhesive interlining of the present invention, the first fiber layer 1 contains 15% by weight or more of non-water retaining fibers 2.
and a second fiber layer 5 made of synthetic fibers 3 that do not contain non-water-retentive fibers 2 to form a web, and this web is impregnated with a water-based emulsion resin binder 4 and then dried. A nonwoven fabric is obtained in which the binder ratio of the second fiber layer 5 is smaller than that of the fiber layer 1. The adhesive interlining of the present invention is obtained by attaching a thermoadhesive resin 6 to the surface of this nonwoven fabric on the first fiber layer 1 side.

In the adhesive interlining thus obtained, the first fiber layer 1 has a lower binder ratio of the emulsion resin binder 4 than the second fiber layer 5, and the first fiber layer 1 has a lower binder ratio of the emulsion resin binder 4 than the second fiber layer 5. Since the thermoadhesive resin 6 is adhered to the surface of the fiber layer 1, the amount of resin does not become too large in the area where it is bonded to the outer material, and the texture is kept soft.

Furthermore, since a sufficient amount of binder is present in the second fiber layer 5 of the adhesive interlining of the present invention, it has excellent durability such as pilling resistance and washing resistance.

(Example) Example 1 Polyester fiber treated with silicone resin 1d
×38mm40wt% and normal polyester fiber 1.5d×
38mm10wt% and nylon fiber 1.5d×44mm50wt%
The first fiber layer is a blend of 10g/ ^m2 of normal polyester fiber 1.5d x 38mm20% by weight and nylon fiber.
1.5d×44mm 80% by weight second fiber layer 20
A non-woven fabric was obtained by impregnating a water ^{-based emulsion resin binder made of acrylic resin with 12 g/m 2 (} solid content adhesion) into the web and drying it. At this time, the binder ratio of the first fiber layer was 0.23, and the binder ratio of the second fiber layer was 0.31. Polyester resin 15 is applied to the surface of the nonwoven fabric on the first fiber layer side.
g/m ² was deposited in dots to obtain an adhesive interlining.

The surface of this adhesive interlining on the first fiber layer side had a slimy feel and was particularly soft, and the texture did not become hard even after adhesion to the outer material.

In addition, the adhesive strength with the outer material was sufficient, and the durability such as pilling resistance and washing resistance after adhesion was also good.

Comparative example Both the first fiber layer and the second fiber layer are Example 1
Except that the fiber composition is the same as that of the first fiber layer,
An adhesive interlining was obtained in the same manner as in Example 1. however,
8.5 g/m ² of a water-based emulsion resin binder made of acrylic resin was adhered to the laminated web, and the binder ratio of the first fiber layer and the second fiber layer was both 0.22.

This adhesive interlining contains fibers treated with silicone resin over the entire layer, so it has low strength.
It had very poor durability against washing and abrasion.

Example 2 First fiber layer contains silicone-treated polyester fiber 1d x 38mm 80% by weight and nylon fiber 1.5d x 44mm
An adhesive interlining was obtained in the same manner as in Example 1, except that a cotton blend of 20% by weight was used.

However, the binder ratio of the first fiber layer was 0.20, and the binder ratio of the second fiber layer was 0.32.

The durability of this adhesive interlining was slightly inferior to that of Example 1, but the feel was extremely soft.

Example 3 Polyester fiber treated with silicone resin
1d×38mm30wt% and normal polyester fiber 1.5d
The first fiber layer is 8g/ ^m2 , which is a blend of 35% by weight of ×38mm and 35% by weight of nylon fibers, and a blend of 20% by weight of regular polyester fibers, 1.5d×38mm, and 80% by weight of nylon fibers, 1.5d×44mm. Second fiber layer 8
g/m ² to form a web, which is then coated with acrylic resin water-based emulsion resin binder 10g/m2.
A nonwoven fabric bonded with m ² (solid content adhesion) was obtained. At this time, the binder ratio of the first fiber layer was 0.33, and the binder ratio of the second fiber layer was 0.43. Polyamide resin 12 is applied to the surface of the nonwoven fabric on the first fiber layer side.
g/m ² was deposited in dots to obtain an adhesive interlining.

Like the interlining of Example 1, this adhesive interlining also had a soft feel and excellent durability.

(Effects of the Invention) As described above, the adhesive interlining of the present invention takes advantage of the fact that the first fiber layer containing 15% by weight or more of non-water-retaining fibers exhibits non-water-retaining properties, and uses the binder of the first fiber layer to The ratio is made smaller than the binder ratio of the second fiber layer, and the thermoadhesive resin is attached to the surface of the first fiber layer having a smaller binder ratio. Therefore, the adhesive interlining of the present invention has an extremely soft texture, and even when it is adhered to the outer material, the adhesive part does not harden, giving it an excellent feeling of wearing.Moreover, it has sufficient adhesion to the outer material. It is an excellent adhesive interlining that also has durability such as pilling resistance and washing resistance.

[Brief explanation of drawings]

The drawing is a cross-sectional model diagram of the adhesive interlining of the present invention. 1... First fiber layer, 2... Non-water retaining fiber, 3...
...Synthetic fiber, 4...Aqueous emulsion resin binder, 5...Second fiber layer, 6...Thermoadhesive resin.

Claims (1)

[Claims] 1 Consisting of a first fiber layer containing 15% by weight or more of non-water-retentive fibers and a second fiber layer that does not substantially contain the non-water-retentive fibers, and between the constituent fibers of the first and second fiber layers is a water-based emulsion resin. A thermoadhesive resin is provided on the surface portion of the first fiber layer side of the nonwoven fabric, which is bonded with a binder and has a binder ratio in the first fiber layer smaller than that in the second fiber layer. Adhesive interlining characterized by being adhered.