JPS6253480A - Production of adhesive core cloth - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention contains an interfiber binder inside the fleece, and the outer layer has zero
This article relates to a method of manufacturing a superior wooden interlining material.

Conventional technology and its problems Conventionally, the method for producing this type of nonwoven adhesive interlining has been to apply an interfiber binder such as acrylic acid ester emulsion or latex to fleece, which is composed of various fibers. , a method of fixing fibers by gelling them after drying;
Possible methods include using a high-pressure water stream or a high-pressure air stream to entangle the fibers of the fleece, or applying local heat-pressure treatment to the fleece to fuse the fibers together at the heat-pressure area. , Nonwoven fabrics formed by these methods are often used as an interlining base material, and a hot-melt adhesive is adhered to the surface of the nonwoven fabric in the form of powder, dots, or spider webs. .

However, in the case of interlining materials using interfiber binders such as synthetic resins and latex, the texture after lamination with the fabric is hard, and corners occur when the fabric is bent, resulting in areas that require drapability. is difficult to apply.

If the interlining is made by intertwining each fiber with the flow of high-pressure water or high-pressure air, the drapability after lamination with the fabric is excellent, but the stress caused by the interlining during high-pressure processing causes the interlining to deteriorate. The fabric itself is thin and lacks a sense of fullness, and due to repeated washing, pilling occurs due to loosening of intertwining between fibers, which tends to cause fibers to separate, causing problems in terms of durability. In the case of interlining that has been subjected to local heat and pressure treatment to locally bond the fibers, the drape properties after lamination with the fabric are excellent, but the fibers that form the fused portion are Since the crimp disappears, it lacks i:i elasticity, and it is also difficult to produce thin interlinings, so it has been desired to develop a versatile adhesive interlining that can be used only in limited areas.

Means for Solving the Problems The present invention overcomes these conventional drawbacks and provides a fabric that is rich in rebound, has excellent drapability, has wash resistance, and does not contain a fiber binding agent inside the 7liss. The purpose is to provide a method for manufacturing adhesive interlining, in which a sublimating organic agent that swells or dissolves the fiber surface by heating is used, and a fleece containing soluble tR fibers is impregnated with this agent and heated. After forming a binder-free non-woven fabric that bonds the fflta to each other, an iron-on adhesive is applied to one side in dots or a spider web pattern, and a resin or rubber print bond is applied to the other side. The present invention provides a method for producing an adhesive interlining in which the above-mentioned adhesive and print bond are dried and the agent that adheres to the fibers is sublimated.

Example An embodiment of the present invention will be described below based on the drawings.

A fleece with a fiber basis weight of 30/- was prepared by using a known card or air flow type Unibar with a mixed fiber consisting of 2 d x 51 g, 70% of nylon fiber and 8 d x 51 tps, 30% of polyester fiber. Then, the fleece was immersed in a 20% aqueous solution of benzoic acid that exhibits solubility when heated to nylon fibers, and was then immersed using a mangle roll so that the benzoic acid adhesion amount was 10 p/fP. The amount of wringing is adjusted to dry for 20 minutes at a drying temperature of 70 to 100°C, and the cross-contact points of the constituent fibers are melted and bonded to form a binder-free nonwoven fabric fl) as shown in the drawing. Paste dot processing machine
Dot (2) (polyamide resin adhesive) with a diameter of 5jlI is 500 @7'LnO number and the adhesion resistance is 159
The lower part is made using a printer roll with a diameter of 80 mm and 500 pieces/buttons of print bond (3) is applied using acrylic acid ester resin emulsion, the amount of adhesion is 5 times. lo.

It was dried at ~150°C for 5 minutes to sublimate the benzoic acid while drying the paste dot resin and print bond to form an adhesive interlining.

As a result of extracting and analyzing the benzoic acid remaining in the adhesive interlining, it was found that the value was less than 0.1'77m, indicating that it is safe to assume that most of the benzoic acid has sublimed.

Effects of the Invention Since the present invention is constructed as described above, unlike the conventional manufacturing method of adhesive interlining, emulsion binding or latex is used, impregnating bonding treatment is performed, and resin f! The adhesive interlining can be manufactured with a relatively simple device, without adhesion to the soaking device or staining of the nonwoven fabric due to gum up, and without the need for high-pressure water flow or high-pressure air flow generation devices.

Furthermore, the use of sublimating agents has the advantage that substances other than those necessary for bonding the fibers to each other are sublimed by heating and do not remain.

Furthermore, the adhesive core material obtained according to the present invention was heated at a temperature of 150' with a adhesive press machine having a basis weight of 200 y/d.
e, pressure (125K!7/CIIF, contact M time 10
The resulting laminated product bonded under the conditions of seconds had excellent repellency, excellent drapability, and a sufficient sense of fullness. Furthermore, an attempt was made to apply anti-layering for 5 hours using a household washing machine, but there was no pilling on the non-adhesive surface after washing, and there was almost no change in the texture of the laminated product, indicating that the invention had excellent practical value. be.

BRIEF DESCRIPTION OF THE DRAWINGS The drawing is a sectional view of an adhesive interlining according to an embodiment of the present invention. fl)...Nonwoven fabric containing no binder, (2)...Dots, (3)...Print bond

Claims (1)

[Claims] A fleece comprising fibers that swell or dissolve the fiber surface when heated with the chemical is impregnated in advance with a solution of a sublimable organic agent, and the cross-contact points between the fibers constituting the fleece are melted and bonded by heating. After applying an iron-on adhesive in the form of dots or spider webs to one side of a fleece material that does not contain a binder, rubber latex or synthetic resin emulsion is printed and bonded to the opposite surface. A method for producing an adhesive interlining characterized by: