JPH01321967A - Base fabric for cataplasm - Google Patents

Abstract

PURPOSE:To provide the subject soft base fabric having a good following prop erty with skins by integrally interlacing a fiber web containing potentially crimpable fibers with a sheetlike fiber collected product containing arranged crimped single fibers and subsequently heating the integrally interlaced webs to allow the potentially crimpable fibers to generate the three-dimensional crimps. CONSTITUTION:Laminated fiber layers comprising a fiber web containing at least >=50% of potentially crimpable fibers generating three-dimensional crimps on heating and a sheet-like filament web collected product constituted by arranging crimped filaments having a single fineness of 0.5-10 denier in the longitudinal direction are integrally interlaced by a needling treatment. The interlaced laminated fiber layers are subjected to a heating treatment to allow the potentially crimpable fibers to generate three dimensional crimps, thereby providing the objective cataplasm base fabric having a 50% modulus of <=1kg/5cm in the lateral direction and a 50% elongation recovery rate of >=40%.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a base fabric for a skin poultice, which is made by coating or filling a fibrous base fabric with a drug.

(b) Conventional technology and its problems Skin poultices generally include plasters containing drugs such as anti-inflammatory analgesics (hereinafter simply referred to as plasters) and poultices in which a sheet-like base fabric is coated or impregnated with cosmetic liquid. Are known.

In recent years, non-woven fabrics obtained by needle-punching fiber aggregates made of synthetic fibers have been used as fibrous base materials suitable for the base fabric of such vaping agents, instead of the conventional cotton flannelette base fabric. It has become a trap that is often used. This non-woven base fabric is less expensive than cotton flannelette, and has a soft texture that blends well with the skin, so it has recently been used as a suitable material.
has become widely used.

The base fabric for this tuft agent is required to have elasticity that follows the color movement of the area where it is applied to the skin, and dimensional stability that can withstand the stress applied during the plaster application process. Efforts have been made to increase the dimensional stability in the direction of the plaster application process (the longitudinal direction of the nonwoven fabric).

That is, (1) All or part of the fibers used are blended in the longitudinal direction. ■ Mix heat-fusible fibers and apply adhesive processing such as embossing. ■Layer or insert reinforcing base material. ■By applying fiber binding agent, etc.! ll Vertical modulus up is attempted.

However, base fabrics for patches made with consideration to ease of application and processability generally have poor elasticity and poor compatibility with the surface skin, especially on elastic elbows. It is unsuitable for use in bent areas such as the knees. Accordingly, there is currently a need for the development of a base fabric for poultices that is easy to apply to plasters, has good adhesion to the skin when used as a poultice, and is highly stretchable.

(c) Means for Solving the Problems The present invention solves the above problems by providing a sheet-like structure in which latent crimpable fibers that exhibit three-dimensional curling through heat treatment and filament yarns having crimp are arranged in the width direction. By combining it with a filament web to form a three-dimensionally entangled composite nonwoven fabric, a base fabric for a poultice agent having good properties as a skin bag agent was obtained. In other words, the elasticity, which is an important performance as a base fabric for poultices, is imparted by latent crimp fibers that develop three-dimensional crimps through heat treatment, and the plaster application processability is imparted by crimped filament yarns. For use as a balm with a soft adhesive that blends well with the skin and has excellent application processability, with improved reinforcing effect of the sheet-like filament web arranged in the width direction, and greatly improved stretchability in the width direction. This is to obtain the base fabric.

The latent crimpable fiber used in the composition of the present invention is a synthetic fiber with a bimetallic structure, which is a composite of different components, whose structure, shrinkage rate, and mixture ratio greatly affect the stretch performance.
It is preferable that a three-dimensional crimp is developed by heat treatment and the heat shrinkage rate is 10% or more. It is difficult to obtain the elasticity required by the present invention with simple heat-shrinkable fibers that do not exhibit three-dimensional crimp or with a shrinkage rate of less than 10%, and if the blending rate is less than 50%, sufficient elasticity is not achieved. It is difficult to obtain an effect.

Although the orientation of the fiber web using the latent crimpable fibers is not particularly limited, the nonwoven fabric strength in the transverse direction and the stretch back property after heat treatment may be randomly oriented or cross oriented. The result will be better.

Next, the sheet-like web aggregate made of continuous filament yarns oriented in the width direction with crimps is not particularly limited in terms of its basis weight, etc., and the sheet-like web supply stability. In order to obtain a material with good bulkiness, width direction stretchability, and softness, a filament web containing 2 to 20% by weight of double metal binder fibers having heat-melting adhesive properties is heat-treated in advance. It is preferable to use the obtained web sheet. That is, if the blending ratio of binder fibers is less than 2% by weight, it becomes difficult to stably supply a filament sheet web having bulkiness, resulting in poor kick-pack properties after composite and heat treatment. Furthermore, if the blending ratio of binder fibers is 20% by weight or more, the adhesion effect due to compounding and heat treatment will significantly reduce elasticity and softness, which is not preferable. The fineness of the filament fibers is preferably fine in feel and appearance, and preferably in the range of 1 to 10 d.

(b) Examples The present invention will be explained in more detail based on examples below.

Example 1 A carded web consisting of polyester latent crimpable fibers J5dX51111170% which develops a three-dimensional crimp by heat treatment and rayon 2dX51m+20% is made into a polyester filament of L5d having crimp of %ts mountain An)
On a filament web sheet with a fabric weight of 15y/P, which is made of a mixture of core/sheath composite polyester binder fibers of 90% and 10% of core/sheath composite polyester binder fibers with a low melting point component of 1'20°C, and having a fabric weight of 15y/P, a sheet with a cross angle of 60° is 1f4 ff
After placing the sheet and performing needle punching with a needle density of 150 p/c-, heat treatment was performed at 120°C for 8 minutes to give it a fabric weight of 110 f/♂ and a thickness of 1 m, which was highly elastic in the width direction. A nonwoven fabric with rich properties was obtained.

Example 8 A card web made of polyester latent crimpable fiber and 5dX511EI1100% which develops three-dimensional crimp by heat treatment is 1.5d having 18 threads/1n crimp.
97% polyester filament, low melting point component is 12%
A laminated mat with a cross angle of 90° was placed on a filament web sheet with a fabric weight of 401/♂ which had been heat-bonded in advance with a blend ratio of 8% core-sheath composite polyester fibers at 0°C, and a needle density of 150° was placed. After needle punching at p/cms, heat treatment was performed at 120° C. for 8 minutes to obtain a nonwoven fabric having a fabric weight of 110′ l/♂ and a thickness of l1w and having stretchability in the width direction.

The physical properties of the nonwoven fabric obtained in the above examples are as shown below.

The base fabric for baptizers of the present invention obtained in this way is three-dimensionally intertwined in the vertical and horizontal directions due to the crimping of the latent crimp fibers that exhibit three-dimensional crimp, and has excellent adhesion to the filament web sheet. A product with excellent dimensional stability in the vertical direction, good plaster application processability, and a soft product with excellent elasticity and kickback properties in the lateral direction and good compatibility with the skin. It became.

(e) Effects of the invention As described above, the base fabric for poultice according to the present invention is provided.

Because it is composite twisted with a filament web sheet of moderate fineness that has crimps, it provides the dimensional stability required during plaster application, and it mainly contains latent crimping fibers that develop three-dimensional crimp by heat treatment. The fiber entangled sheet has excellent elasticity as an ingredient, provides a soft feel with excellent lateral elasticity, and provides a base fabric for poultices that has excellent conformability to the skin and has good conformability. This invention has the following effects.

Claims (3)

[Claims] (1) A fiber web containing at least 50% or more of latent crimpable fibers that develop three-dimensional crimps through heat treatment, and filament yarns having crimps with a fineness of 0.5 to 10 deniers in the length direction. It is characterized in that it is constructed by interlacing and integrating a laminated fiber layer with an arrayed sheet-like filament web aggregate by needling, and the latent crimpable fibers are made to develop a three-dimensional crimp by heat treatment. Base fabric for balm agents. (2) The base fabric for a poultice agent according to claim 1, wherein the sheet-like filament web aggregate is mixed with at least 2 to 20 weight percent of composite binder fibers having heat-melt adhesive properties. (3) The lateral 50% modulus of the base fabric for poultice is 1
Kg/5cm or less, and a 50% elongation recovery rate of 40% or more.