JPS6028585A - Production of heat-fusible temporary adhered 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 The present invention relates to a heat-sealable temporary adhesive fabric in which a trichlene-soluble and thermoplastic resin powder is sprayed onto the surface of a fabric such as a woven fabric or a non-woven fabric, and then adhered by preheating. The objective is to create a temporary adhesive that prevents the resin powder that has been heated and adhered to the cloth foil from penetrating into the interior of the cloth foil, and that also exhibits strong adhesive strength even under relatively weak adhesive conditions such as with a household iron. The purpose is to obtain adhesive cloth.

Conventionally, collars, cuffs, endpapers, etc. of shirts, blouses, etc. have been used to make sewing easier and to make the product look more beautiful.
The outer material and adhesive fabric (for example, non-woven fabric) are sewn together, but once sewn, the remaining adhesive oozes out when re-pressing after washing, etc. Preferably, the adhesive is removed after washing.

Conventionally, this was done by applying starch or the like to the nonwoven fabric just before sewing and adhering it to the outer material, but recently a slightly more advanced method has been used:
Attempts have been made to use so-called temporary adhesive cloth coated with a paste solution of water-soluble resins such as methyl cellulose and polyvinyl alcohol, but this cloth does not adhere to the outer material, but is applied using methods such as water spray. The resin must be moistened, which is a complicated process, and the moistened water-soluble resin penetrates into the interior of the fabric, resulting in a decrease in adhesive strength when adhering to the outer material, and resulting in poor texture. Recently, so-called heat-sealable temporary adhesive fabrics have been developed that can easily exhibit adhesion strength simply by heat pressing with a household iron, etc., when adhering to (B) outer fabrics. Although it has been studied, the method of applying water-soluble polymers to cloth foil is the same as method (A) (because a paste or emulsion solution is applied, no significant improvement in adhesion or texture could be obtained. If storage is required for a considerable period of time before adhesion to the outer material, the resin-coated surface is extremely sticky and cannot be stacked or rolled into paper tubes. Even when die-cutting into shapes such as the above, the adhesive fabrics adhered to each other to the extent that they could not be easily peeled off, making it difficult to put them into practical use industrially.

In addition, heat-sealable temporary adhesive fabrics using water-soluble thermoplastic resin powder have been developed (・However, these are all water bathable, so depending on the type of adherend, they may not be washable). There was a problem.

Also, when fibers with different shrinkage rates upon washing are combined, for example, natural fibers (wool, cotton, etc.) and synthetic fibers (
When temporarily adhering fabrics made of 1 yarn (nylon, polyester), when temporarily adhering an interlining made of synthetic fibers to an outer material made of natural fibers, and vice versa, the product may not tighten after washing with water. There was a problem that caused defects in the product.

In order to eliminate these shortcomings of conventional temporary adhesive fabrics, the present inventors have found, as a result of various studies, that they have a property that can be easily dissolved and peeled off by dry cleaning with triclean, etc., and that can be used under relatively weak adhesive conditions such as household irons. However, we have invented a method for producing a heat-sealable temporary adhesive fabric that can provide a sufficiently high adhesive strength and produce sewn products with excellent texture.

That is, the present invention has a number average molecular weight of 5,00 to 200,
000 polycaptolactone powder is sprinkled on the surface of the cloth and then heated to adhere.

The features of the present invention relating to a method for producing a heat-sealable temporary adhesive fabric are as follows.

Poly-ε-caprolactone powder is sprinkled on cloth as an adhesive and heated and melted to create a heat-sealable temporary adhesive cloth.The melting point of poly-ε-caprolactone is 50 to 10.
Since it is as low as 0°C, it can be melted and adhered to cloth at a relatively low temperature. In addition, poly-ε-caprolactone is completely solid at around room temperature and has no stickiness, so it can be stacked or rolled in paper tubes, making it easy to store.

Furthermore, when heat-sealing the heat-sealable temporary adhesive fabric and other fabrics, the heat-sealing can be performed at 50 to 100°C, so there is no fear of damaging the fabric.

Further, after being thermally fused to a cloth, the adhesive can be subjected to sewing processing, and then the adhesive can be removed by dry cleaning with TriClene, PerClene, or the like. And because it does not use water, it can be washed with water if fibers with different shrinkage rates are combined, e.g. natural fibers (wool, cotton, etc.)
and synthesis g! When subjecting fabrics made from blended fibers (nylon, polyester) to temporary bonding, when temporarily bonding an interlining made of synthetic fibers to an outer material made of natural fibers, or vice versa, the product may be stretched after washing with water. Blistering may occur, etc.
There is no need to worry about product defects.The present invention uses a heat-sealable temporary adhesive fabric in which poly-ε-caprolactone powder with a number average molecular weight of 5,000 to 200,000 is sprayed onto the surface of the fabric and then heated to adhere. Of course, poly-ε
- It is possible to produce a heat-sealable temporary adhesive cloth using caprolactone film, web, dope, etc.

Alternatively, by directly using powder, film, web, dope, etc., it is possible to temporarily bond fabrics without going through a heat-sealable temporary adhesive fabric. Polycaprolactone, which is the polymer of the present invention, can be used, for example, as follows. You can get it like this. That is, when ε~Kaguro 2 Chton is polymerized to form polycaprolactone, a compound having hydroxyl groups at both ends is used as a polymerization initiator. As this polymerization initiator,
For example, ethylene glycol, propylene glycol, 1
, 4-butanediol, 2,3-butyne/glycol,
Alkylene glycols such as pentamethylene glycol and hexamethylene glycol, iso-7-tallyl alcohol, tele-7-tallyl alcohol (sAβ-bistroxethyl terephthalate), /, 'β-bishydroxyethyl isophthalate, etc. containing aromatic nuclei. alicyclic compounds such as diol, cyclohexane 1,4-diol, and cyclohexane 1,4-dimetatool; and polymers such as polyether diol, polyester diol, polyacetal diol, polyester amide diol, polyester ether diol, and polyhydrocarbon diol. , specifically polyethylene glycol with a molecular weight of about 300 or more,
Examples include polypropylene glycol, polytetramethylene glycol, polybutylene adipate diol, polypropylene adipate diol, polybutylene adipate diol, polyethylene sebacate diol, polyethylene propylene diol, polyethylene-butylene adipate diol, polyethylene diol, and polypropylene diol.

Polycaprolactone is produced by adding the above-mentioned polymerization initiator to ε-caprolactone monomer, preferably using a catalyst, and stirring at usually 120-220°C, preferably 150-220°C.
It is obtained by reacting at 200°C for several hours.

Various organic or inorganic metal compounds are known as catalysts for ring-opening polymerization of lactone monomers.

Specifically, there are the following. These include compounds such as tetrabutyl titanate, tetraisopropyl titanate, tetraethyl titanate, and the like, as well as dibutyltin oxide, dibutyltin laurate, tin octylate, and stannous chloride.

Further, the amount of these catalysts used is 0.1 to 10,000P.

Preferably it is 0.5-500P.

The number average molecular weight of the obtained polycaprolactone was 5.00.
0~200,000. Preferably 10,000 to 100
,000.

Various additives such as stabilizers and plasticizers can be added to the lactone polymer of the present invention. Furthermore, various thermoplastic resins can be added within a range that does not impair the characteristics of the present invention.

The pulverization and granulation of polycaprolactone may be carried out by a normal temperature mechanical pulverization method, a frozen mechanical pulverization method, etc. which are commonly used for pulverization of thermoplastic resins.

As for the method of dispersing the resin powder onto the surface of the cloth and the method of applying it by heating, conventionally used methods and devices may be used.For example, the powder is placed in a hopper and passed through a vibrating sieve while being controlled with a doctor knife etc. There are two methods: one is to spray the powder evenly onto the cloth foil, the other is to feed the powder through a chopped gas tube.The amount of resin powder to be sprayed varies depending on the type of cloth foil and lining, but in general, the amount of resin powder to be sprayed varies depending on the type of cloth foil and lining. 10-5 per i
0I is sufficient.

The cloth foil sprinkled with resin powder is heated while moving at a speed of 10 to 20 meters per minute, and finally it is passed through a cooling roll etc. to ensure that the resin powder completely adheres to the surface of the cloth foil. A bonded fabric is obtained.

The particle size of the resin powder used is determined by the thickness and count of the cloth used. For example,
When using a blend with a cotton broad ratio of 65:35, one with an average particle size of 60 to 100 mesh Ta may be used.

The heat-sealable temporary adhesive fabric produced by the production method of the present invention has no adhesive properties, and even if it is left in a stack or wrapped in a paper tube for a long period of time, the adhesive fabrics will not stick to each other. For example, stack several dozen pieces in color,
Even when cut out into the shape of cufflinks, endpapers, etc., each sheet peels off easily and does not stick at all, and even after being cut out, it does not stick at all even if stacked and left for many days.

In addition, the heat-sealable temporary adhesive fabric produced by the manufacturing method of the present invention has an excellent property of being able to be completely peeled off from sewn products with a single dry krilling process, despite its strong adhesion to the outer fabric. are doing. For example, after adhesive sewing, immersion cleaning was performed at 25° C. for 10 minutes using Triclean. The resin was dissolved by washing, and the outer fabric and fabric peel were completely separated.

The fabric used for the temporary bonding fabric may be plain woven fabric, jersey, tricot, nonwoven fabric, etc. made of synthetic fibers, natural fibers, or blends thereof.

Temporarily bonded fabric and outer material are heat fused at 60 to 200°C.
It is sufficient to do this within seconds.

The heat-sealable temporary adhesive fabric produced by the manufacturing method of the present invention is bonded fabrics,
F to far F lamination) (fabric to far
It does not cause any trouble when used in cutting and sewing various conventional sewn products such as bric laminate), streamlines cutting and sewing, greatly enhances costume effects, and has great practical effects.

Next, examples will be shown.

Example 1 Polycaprolactone with a number average molecular weight of 7o, ooo was pulverized using a mechanical pulverizer normally used for pulverizing thermoplastic resins.
Obtain resin powder. The obtained resin powder was classified and 42 to 8
0.0 mesh particle size was used to coat the surface of a broad cloth (65% polyester, 35% cotton blend) to a thickness of 0.2
A hole with a diameter of 15 m is placed on my stencil, 4' in length and width.
A spraying device equipped with cylinders arranged at intervals of lILm sprays at a rate of 10ffl per minute, passes through a heating chamber (approximately 145°C) equipped with an infrared heater, where it is heated and adhered, and the spraying amount is approximately 159/m2. A dot-shaped heat-sealable temporary adhesive cloth was obtained.

This temporary adhesive cloth was layered on a tropical cloth ((wool 55z1 polyester 45% blend)) and heated at 130°C, 3oo, 51/c4.
The adhesive fabric and the tropical fabric foil were thermally fused together by heating and pressurizing for 10 seconds, and as a result, excellent initial adhesive strength was exhibited.

Regarding the releasability of wash 4A, when the above-mentioned heat-sealed cloth was washed with trichloride at 25° C. for 10 minutes, the cloth was completely separated from each other.

Patent applicant: Daicel Chemical Industries, Ltd. Procedural amendment (voluntary) August 2, 1980 Mr. Manabu Shiga, Commissioner of the Patent Office] Case description 1981 Patent Application No. 135103 2 Name of the invention Heat-fusion type temporary adhesive Fabric manufacturing method: 3 Relationship with the case of the person making the amendment Patent applicant Address: 1, Teppo-cho, Sakai City, Inusaka Name (2110) Column 5 of the detailed description of the invention in the Daicel Chemical Industries, Ltd. specification (1) Specification li, page 6, lines 8 to 10 "A compound having hydroxyl groups at both ends is used. As the polymerization initiator,"
Any compound that does not contain active hydrogen can be used. For example, water, alcohols, carboxylic acids, amines, etc. can be used. For example, when polyhydric alcohol is used as an initiator, corrected to ``.

(2) Page 7 lines 14-15 of the specification “120-220°C,
Preferably at 150-200°C
Corrected to "at °C."

(3) Insert the legal text on a new line after line 8 on page 8 of the specification.

[In this invention, number-average molecule-hl at °C is defined as gel permeation chromatography (GP) under the following conditions.
C) means the numerical position set by.

Measurement conditions: Equipment: LC-3A (Shimadzu Corporation) Solvent:
Tetrahydrofuran (flow rate 1 me/min) Temperature...Room
Temperature detector...-3hodex RI 5E-11 (manufactured by Showa Denko) Column...H2O-PRE (1 piece), ll5G
-20 (1 book), H2O-15 (3 books), H2O-t.

Claims (1)

[Claims] 1. A method for producing a heat-sealable temporary adhesive cloth, which comprises spraying polycapro2 chthone powder having a number average molecular weight of 5,000 to 200,000 on the surface of the cloth and then heating and adhering it.