JPH0619590Y2 - Base fabric for chemical lace - Google Patents

Description

[Detailed Description of the Invention] (a) Purpose of the invention Industrial field of application The present invention relates to a base fabric for chemical lace, and more specifically, the base fabric has a large thickness and enables three-dimensional embroidery and heats the base fabric. The present invention relates to a chemical lace base fabric in which a lace having an excellent three-dimensional effect can be obtained by dissolving it in water.

Conventional technology and its problems Conventionally, the so-called chemical lace has been embroidered on a base fabric that is easily soluble in hot water with various hot water-soluble yarns, and then immersed in hot water to form a base fabric. It is made by dissolving and removing.

As the base fabric for this chemical race, for example, Japanese Patent Publication No.
As described in JP-A 2-15839 and JP-A-58-98464, a web made of hot water-soluble polyvinyl alcohol fiber is treated with a hot water-soluble binder to obtain a fiber-to-fiber bond to form a nonwoven fabric. However, it has been used conventionally.

This hot water-soluble non-woven base fabric withstands the tension applied during embroidery processing and can be quickly dissolved by immersing in hot water after embroidery to obtain a good lace.

However, these conventional base fabrics typically have 0.15 to 0.25
Since the thickness of mm is used, if the thickness is made larger than this, the base fabric becomes stiff and the needle passing becomes poor, so embroidering is not possible. Although it is necessary to embroider with a large thickness and a thicker base fabric is demanded, the conventional technique has not been able to meet this demand.

For example, if you simply reduce the apparent density and increase the thickness, the needle will be softer and the needle will pass better, but it will not be able to withstand the tension during embroidery processing and the problem of deforming the base fabric during embroidery will occur. .

Further, even if several conventional thin base cloths are used in piles, the needle penetration is poor and the processing efficiency is significantly reduced.

The present invention was made in order to solve the above problems, and despite having a large thickness and bulkiness and good needle passage, it has excellent tensile strength and sufficient tension for embroidery. Endures, enables three-dimensional embroidery,
The present invention is intended to provide a chemical lace base fabric that can provide a three-dimensional lace.

(B) Structure of the invention The structure of the invention is such that a water-soluble binder is adhered in the range of ² to 15 g / m ^{2 on} one or both sides of a bulky fiber web composed of hot water-soluble fibers and having a thickness of 1 mm or more and entangled with each other. The present invention is directed to a chemical lace base fabric having a reinforcing film formed thereon.

Means for Solving Problems To be bulky and thick, and to improve needle passage,
As the base fabric, the non-woven fabric in which the internal fiber bonds are considerably strengthened by a large amount of binder as in the past is not used, but the internal fibers are weakly bonded only by entanglement of fibers or by using a small amount of binder. As a result of studying the use of a bulky fiber web that has a certain thickness, one or both sides of a hot water-soluble bulky fiber web having a predetermined thickness or more, for example, a thin film of a water-soluble binder in a predetermined range by a spray method or the like. It has been found that when the film is formed as a reinforcing film, excellent results can be obtained.

FIG. 1 is an enlarged partial cross-sectional view of one embodiment of the base fabric of the present invention.

FIG. 2 is an enlarged partial sectional view of another embodiment of the base fabric of the present invention.

As shown in these figures, the present invention is that the reinforcing membrane (2) is attached to one side (Fig. 1) or both sides (Fig. 2) of the bulky fiber web (1). The fibers of (1) are hot water-soluble fibers, and the reinforcing film (2) is formed of a water-soluble binder.

The bulky fibrous web (1) preferably has a thickness of 1 mm or more. Even if 0.5 to 1 mm has some effect, it needs to have a thickness of 1 mm or more to obtain an excellent effect.

The hot water-soluble fiber used in the bulky fiber web (1) is a fiber that dissolves in water at about 40 to 90 ° C., and a hot water-soluble polyvinyl alcohol fiber is mainly used.

The interfiber bonding of the bulky fiber web (1) may be only interfiber entanglement obtained by needle punching or the like, but if necessary, a small amount of a water-soluble binder may be added to slightly reinforce the interfiber bonding to form a layer. Internal peeling may be prevented.

The reinforcing film (2) in the present invention is a film formed by adhering a water-soluble binder on the surface of the bulky fiber web (1) by a spray method, a coating method, an impregnation method, or the like. ) Is not necessarily a continuous film, and there is no problem even if there is some non-uniformity.

The amount of the water-soluble binder attached should be in the range of ^{2 to} 15 g / m ^{2 in} terms of solid content irrespective of one side or both sides. If it is less than 2 g / m ² , sufficient reinforcement cannot be achieved. Because of insufficient tensile strength, embroidery becomes impossible.
On the other hand, if the adhered amount exceeds 15 g / m ² , the texture becomes hard and the needle penetration during embroidery processing becomes poor, resulting in a significant decrease in processing efficiency.

Regarding the tensile strength of the base cloth required for embroidery processing, a tension of 2.5 to 3.5 kg / 5 cm width is usually applied during this embroidery, so it is desirable that the strength is 3.5 kg / 5 cm width or more. .

Specific examples of the water-soluble binder include polyvinyl alcohol, polyethylene oxide, hydroxylalkyl cellulose, carboxymethyl cellulose, polyacrylamide, polyvinylpyrrolidone, polyacrylate, and starch-based binders.

The structure of the present invention is as described above, and the main part of the base fabric is bulky and thick, and the internal fiber-to-fiber bond is weak, so it is soft and easy to pass through the needle. Since the weakness of the interfiber bond inside is covered by the reinforcing film provided on one or both sides, the overall tensile strength is strong at 3.5K.
The width is much larger than the g / 5 cm width, and it can withstand the tension of embroidery processing.

For example, even if the base fabric of the present invention having a thickness of 2 mm is designed as in the embodiment described later, the needle passing is very good and the base fabric is not deformed during the embroidery and the quality of the embroidery is not deteriorated. .

Therefore, by using the base fabric of the present invention, a three-dimensional embroidery with a large thickness is possible, and a race with an excellent three-dimensional effect can be obtained.

Example 100% hot water-soluble polyvinyl alcohol fiber (Unitika Vinylon: 1.3 denier manufactured by Unitika Co., Ltd.) was used to prepare a web having a basis weight of 70 g / m ^{2 and} 70 fibers / cm ² with a # 40 needle. Needle punching was performed at a ratio to obtain a bulky fiber web.

Each of these bulky fiber webs has a basis weight of 2 g / m ^{2 on} both sides,
An aqueous solution of polyvinyl alcohol (Unitika Poval UP-180G ...) so that the total adhesion amount (solid content) is 4 g / m ² .
Unitika Co., Ltd.) is attached by a spray method and dried,
A base fabric of the present invention having a thickness of 2 mm and a tensile strength of 6.5 kg / 5 cm width was prepared.

When this was used as a base fabric for embroidery, the tensile strength and stitch strength required for work were sufficiently high, and the needle passing was excellent.

When the cloth was dissolved in warm water and dried after stitching, the state of dissolution in warm water was good, and the obtained lace had a large thickness and an excellent three-dimensional appearance.

The effects of the present invention are listed below.

(A) Three-dimensional embroidery processing is possible due to its large thickness,
By dissolving this base cloth, a race with an excellent three-dimensional effect can be obtained.

(B) Even if the thickness is large, the internal fiber-to-fiber bonds are weak, so that it is soft and has good needle penetration, and efficient embroidery processing can be achieved.

(C) Even if the internal fiber-to-fiber bond is weak, since the reinforcing film is on the surface, it has excellent tensile strength and can sufficiently withstand the tension of embroidery processing, and the quality of the embroidery will be impaired even if the base cloth is deformed. There is no such thing.

As described above, the present invention has a very excellent effect and exhibits a high degree of usefulness as a chemical lace base fabric for obtaining a lace having a large three-dimensional effect.

[Brief description of drawings]

FIG. 1 is an enlarged partial cross-sectional view of one embodiment of the base fabric of the present invention. FIG. 2 is an enlarged partial sectional view of another embodiment of the base fabric of the present invention. (1) …… High bulk fiber web, (2) …… Reinforcement membrane

Claims (1)

[Scope of utility model registration request] 1. A reinforcing film formed by adhering a water-soluble binder in the range of ² to 15 g / m ^{2 on} one or both sides of a bulky fiber web in which fibers having a thickness of 1 mm or more and made of hot water-soluble fibers are entangled with each other. A base fabric for chemical lace, which is characterized by being formed.