JP2020143396A - Yarn for padding and pad body using the same - Google Patents

Abstract

To provide a yarn for padding which is applicable to sportswear having stretchability and a large movement, and to provide a pad body using the same.SOLUTION: There is provided a yarn for padding (1) composed of at least two kinds of long fibers A (2) and a long fiber B (3), wherein the long fiber A (2) is relatively short compared with a long fiber B (3), and the long fiber A (2) and the long fiber B (3) are integrated, and a long fiber A (2) is a stretchable yarn having stretchability. A pad body of the present invention is obtained by filling a side cloth with the yarn for padding.SELECTED DRAWING: Figure 1

Description

The present invention relates to a stuffing thread composed of long fibers and a stuffing object using the same.

Waterfowl feathers are generally used as the feathers to be filled in feather products such as duvets and feather jackets. Waterfowl include goose (goose), duck (duck), and eider (wild duck) that inhabit the coastline of the Arctic Circle. Feathers include down, which is the chest hair, and feathers, which are called feathers, both of which are used in feather products. Feathers are produced in Central Europe such as Poland and Hungary, Northern Europe including the Scandinavian Peninsula, and China. Feathers are bulky, warm, and occupy the status of high-end materials as feather products for comforters and feather jackets.

However, natural feathers depend on waterfowl, and there is a problem that the supply amount is limited and the supply amount fluctuates due to the influence of natural conditions and diseases (for example, bird virus). Or from the viewpoint of nature conservation, there is a limit to catching wild birds. In addition, natural feathers can cause foul odors if washed inadequately, so remove the foul odor-causing filth in advance and check the degree of feather washing to a certain level of cleanliness and oxygen count. It is necessary to keep it in control. In addition, there is a basic problem that it is not easy to wash feather products such as duvets and feather jackets.

Therefore, there have been many proposals for stuffed cotton. Patent Document 1 proposes that polyester fibers are shrunk by heat treatment to develop crimping, and to have bulkiness and elasticity. The applicant proposes stuffed cotton in which core yarn and flower yarn are entwined in Patent Documents 2 and 3. Patent Document 4 proposes stuffed cotton in which a flower thread is wound around a core thread and entwined. Further, Patent Document 5 proposes that threads having a difference in thread length are swirled by an injection air flow to perform bulk processing.

Japanese Unexamined Patent Publication No. 6-93513 Japanese Unexamined Patent Publication No. 2012-067429 Japanese Unexamined Patent Publication No. 2012-067430 Japanese Unexamined Patent Publication No. 2016-027213 JP-A-2017-122304

However, the stuffed object of the prior art has a problem in elasticity, and has a problem in application to wear having a large movement. Further, in the case of feathers, there is a problem that down blows out when an elastic fabric is used as the side fabric.
In order to solve the above problems, the present invention provides a stuffing thread that is elastic, can be applied to a wear having a large movement, and can be filled in an elastic fabric, and a stuffing object using the same.

The stuffing yarn of the present invention is a stuffing yarn composed of at least two types of long fibers A and B, and the long fibers A are relatively shorter than the long fibers B, and the long fibers A and the long fiber B are integrated, and the long fiber A is a yarn having stretchability.

The stuffing object of the present invention is characterized in that the stuffing thread is filled in the side fabric.

In the present invention, the long fiber A is relatively shorter than the long fiber B, and the long fiber A is a thread having stretchability. Therefore, the stuffing thread has elasticity and is suitable for wear having a large movement. It is possible to provide a stuffing thread and a stuffing object using the same. Further, since the long fibers A and the long fibers B are integrated, the long fibers A and the long fibers B are not separated even when applied to a wear having a large movement. Further, even if the stretchable fabric is filled, the stuffed cotton does not blow out from the side fabric, and the stuffed object has less deviation.

FIG. 1 is a side view of the entangled yarn in one embodiment of the present invention. FIG. 2 is a schematic explanatory view of a method for producing a long fiber air entangled yarn according to an embodiment of the present invention. FIG. 3 is a stretch recovery graph of the latent crimp type stretch yarn (PET / PTT conjugated yarn) and the comparative yarn used in the present invention after hot water treatment.

The filling thread of the present invention is composed of at least two types of long fibers A and long fibers B. It is optional to add fibers other than the long fibers A and the long fibers B, but when the filling yarn is 100% by mass, the total of the long fibers A and the long fibers B is preferably 70% by mass or more, more preferably 80% by mass. % Or more. The long fibers A and the long fibers B are integrated. Here, "integration" means a state in which fibers are entangled or wound with each other. The long fiber A is relatively shorter than the long fiber B. By providing a difference in length between the long fibers A and the long fibers B, the bulkiness is obtained.

In the present invention, the long fiber A uses a yarn having stretchability. As the stretch yarn, a latent crimp type stretch yarn is preferably used. When the latent crimp type stretch yarn is used, there is moderate stretch, dimensional stability is good, and there is little change in the shape of the stuffed cotton even when it is in a stationary state or when it is stretched during exercise. As a result, problems such as shrinkage of stuffed cotton and curling of batting clothes in a stationary state are unlikely to occur. Here, the latent crimp type stretch yarn is a conjugate yarn in which at least two kinds of polymers having different shrinkage ratios are compositely spun, and crimp (crimp) is expressed from the stage of the raw yarn, but heat is generated. By adding, a larger crimp (crimp) is developed. Generally, it has high stretch recovery and stretchability. It is preferable that the maximum power indicating stretch recovery is 2 cN / decitex or more, and the maximum stretch rate indicating stretchability exceeds 100%. In the present invention, a silicone resin is later applied and a large crimp (crimp) develops during heat curing. Examples of such latent crimp type stretch yarns include polybutylene terephthalate (PBT), polytrimethylene terephthalate (PTT), polyethylene terephthalate (PET) and the like, and composite yarns thereof. Among these, a latent crimp type stretch yarn using a two-component polyester of polyethylene terephthalate and polytrimethylene terephthalate is preferable because of its entanglement with long fibers B and appropriate crimpability. The maximum power indicating the stretch recovery of the conjugated yarn of polyethylene terephthalate (PET) and polytrimethylene terephthalate (PTT) is about 2.5 cN / decitex, and the maximum stretch ratio indicating elasticity is about 110%. FIG. 3 shows a stretch recovery graph of a latent crimp type stretch yarn (PET / PTT conjugated yarn) and a comparative yarn after hot water treatment.

As the long fiber B, a solid yarn (ordinary yarn) such as polyester, nylon, or polypropylene can be used, but a polyethylene terephthalate (PET) hollow yarn is preferable. The polyethylene terephthalate hollow yarn is warm due to the heat insulating effect, and PET is firm and can maintain high bulkiness. The hollow ratio is preferably about 10 to 40%.

The mass per unit length of the filling thread is preferably 0.01 to 3 g / m, more preferably 0.02 to 1.5 g / m. Within this range, it is convenient to handle when making stuffing.

The weight ratio of the flower thread (long fiber B) and the core thread (long fiber A) is that of the flower thread (long fiber B) when the flower thread (long fiber B) and the core thread (long fiber A) are used as the population. The ratio is preferably in the range of 51 to 99% by mass (wt%). It is more preferably in the range of 80 to 98 wt%, and particularly preferably in the range of 85 to 97 wt%. Within the above range, the fixed integration with the core yarn (long fiber A) is firm and the texture is also good.

The long fibers A and the long fibers B are preferably integrated by at least one processing selected from entanglement processing, air jet processing, winding processing, and processing for injecting the long fibers B onto the long fibers A. The entanglement process is a process using an air entangler that injects compressed air in a direction perpendicular to the traveling direction of the long fibers A and B. The air jet process is a so-called Taslan process, which is a process of pushing compressed air into the long fibers A and B in the traveling direction. The winding process is a process in which the long fiber B is wound around the long fiber A and integrated. The process of injecting the long fiber B onto the long fiber A is a process of injecting the long fiber B onto the long fiber A and entwining or swirling it.

It is preferable that the filling thread is coated with a silicone resin and heat-fixed by curing. The preferable amount of the silicone resin adhered is in the range of 0.1 to 10% by mass with respect to the filling thread. Further, an acrylic resin, a urethane resin, an epoxy resin, or the like may be fixed for adjusting the hardness.

In the stuffing object of the present invention, the stuffing thread is filled in the side fabric. Preferable stuffing objects include duvets, blankets, sleeping bags, pillows, cushions, mats, stuffed animals, rugs, jackets, shirts, pants, skirts, vests, coats, cold-weather clothing, inner clothing, work clothes, neck warmers, and the like. Clothing such as jackets, shirts, pants and skirts is suitable for clothing with large movements. In addition, it has a fit like an inner jacket and has the property of stretching well.

The single fiber fineness of the long fibers A and B is preferably 0.1 to 300 decitex, and the total fineness is preferably in the range of 10 to 600 decitex. More preferably, the single fiber fineness is in the range of 1.0 to 50 decitex and the total fineness is in the range of 20 to 250 decitex. When the fineness is in the above range, it is hard to settle and the texture is good.

The filling thread of the present invention may be stored in a carton container as it is, or a plurality of threads may be bundled and a film may be wrapped around the length direction of the bundle in a cylindrical shape. The use of such a packaging body is not only convenient for packing and transportation, but also convenient for filling the side area with the filling thread when manufacturing the filling. That is, the stuffing thread can be stored in the side area simply by exposing the stuffing thread from the end of the tubular film, arranging the exposed portion at the edge of the side area to hold it down, and pulling out the film.

The stuffing object of the present invention is preferably filled with long fiber stuffing threads arranged in the length direction of the stuffing and fixed to the side by a plurality of quilt threads sewn in the width direction of the stuffing. As a result, the length of the stuffing thread does not change between the fixed points, and the long fibers A and B are integrated, so that the movement of the stuffing cotton is restricted even after repeated washing, and there is little deviation. It is a stuffed product with a high bulk. As the stuffing object of the present invention, other long fiber stuffing may be used together with the long fiber stuffing thread, and a plurality of quilt threads may be used by mixing the other long fiber stuffing and the long fiber stuffing thread of the present invention. May be fixed to the side land. In addition, it may be used in combination with other feathers, artificial feathers, and short fiber cotton.

The side fabric that fills the stuffing object may be a non-stretchable fabric or an elastic fabric. The use of elastic fabric is extremely useful in the case of sports jackets and sports pants because it is elastic and does not interfere with the wearer's large movements. In the case of feathers (down), if an elastic fabric is used for the side fabric, there is a problem that the down blows out, and the elastic fabric cannot be used. However, in the present invention, the elastic fabric can be used. As the stretchable fabric, a one-way, a two-way, a fabric having a partially stretchable portion, or the like can be used. Further, a fabric using elastic yarn, that is, a polyester fiber such as a bicomponent conjugated yarn of polyurethane or polyethylene terephthalate and polytrimethylene terephthalate can also be used. Furthermore, a mechanical stretch fabric or the like that does not stretch but has elasticity due to the fabric structure can also be used.

This will be described below with reference to the drawings. In each drawing, the same reference numerals indicate the same parts. Further, in the following, the case where the long fiber stuffing yarn is an entangled yarn will be described as an example. FIG. 1 is a side view of a long fiber entangled yarn according to an embodiment of the present invention. In this long fiber entangled yarn 1, the constituent fibers of the core yarn 2 (long fiber A) and the filament 3 (long fiber B) are entwined with each other, and the filament 3 is opened to partially form a loop-shaped fiber. are doing.

FIG. 2 is a schematic explanatory view showing a method for manufacturing an air entangled yarn. The core thread 4a (long fiber A) is pulled out from the winding body 4, the flower thread 5a (long fiber B) is pulled out from the winding body 5, and the two feed rollers 6 and 7 and the thread guide 8 are passed through the air entanglement device. Supply to 10. When the compressed air 11 is supplied to the air entanglement device 10, the fibers in the thread path 9 are entangled with each other by being opened or swirled. Reference numeral 12 is a mixed fiber entangled yarn. The core yarn supply speed is 10 to 200 m / min, the flower yarn supply speed is 20 to 10000 m / min, the winding speed is 10 to 200 m / min, and the air pressure is 0.01 to 1.0 MPa. After the above, the thread after passing through the delivery roller 13 and the winder roller 14 is wound around the winding body 20. This method has an advantage in that the winding speed of the thread can be increased to 20 to 1500 m / min and the productivity is high.

A silicone resin is applied to the obtained entangled yarn. As the silicone resin, it is preferable to use a reactive silicone treatment agent having a hydrogen group (-OH), a vinyl group (-CH = CH ₂ ) or the like at the molecular end. For example, soft silicon such as "TERON E 530" bulky silicon, "TERON E 731", and "TERON E 722" manufactured by Matsumoto Yushi Pharmaceutical Co., Ltd. can be used. The amount to be applied is preferably 0.1 to 10% by mass based on the dry weight of the stuffed cotton. Next, in the heat treatment step, the silicone resin is cured by heat treatment at 140 to 190 ° C. for 1 to 10 minutes. At this time, the latent crimp type stretch yarn of the core yarn develops post-crimping.

Hereinafter, the present invention will be described in more detail with reference to Examples. The present invention is not limited to the following examples.
A method for measuring each physical property will be described.
<Measurement method for bulkiness>
One of the quality standards for feathers is bulkiness. For feathers, the bulkiness of the batting material (stuffing thread) was measured by a method conforming to the JIS feather test method (JIS L 1903-1998, a method for testing feathers for filling materials used in feather products). Put 30 g of batting material in a cylinder container with an inner diameter of 29 cm and a height of 50 cm, and measure the height of the batting material after placing a 120 g load disk (weight) for 2 minutes. Measure 3 points of the weight up to 1 mm unit. This value is larger for more elastic and good quality batting material. At this time, 10 or more batting materials (stuffing threads) are bundled, cut to a length of 50 cm, 30 g is collected, and the collected bundle-shaped batting materials (stuffing threads) are unraveled by hand while measuring. If it does not fit in the measuring instrument, the overflowing batting material (stuffing thread) was lightly pressed by hand to prevent it from overflowing.
<Expansion and contraction rate>
<Stretch elastic modulus> measured according to JIS L 1013 B method
Measured according to JIS L 1013 B method.

(Example 1)
A bicomponent conjugate yarn of polyethylene terephthalate and polytrimethylene terephthalate, fineness 33decitex, and 24 filaments are used as the core yarn, and polyethylene terephthalate (PET) hollow filament yarn (hollow ratio 35%), fineness 39decitex , Twelve filaments were used to prepare a stuffing thread under the conditions shown in Table 1. The physical properties of the obtained stuffing yarn are summarized in Table 2. Hereinafter, the latent crimp type stretch yarn may be indicated as PTT / PET, 33T / 24F, and polyethylene terephthalate (PET) hollow filament yarn, fineness 39decitex, and 12 filaments may be indicated as PET hollow yarn 39T / 12F. is there.
Next, in the silicone resin applying step, the silicone resin was applied. As the silicone resin, an aqueous solution containing "Teron E-530" manufactured by Matsumoto Yushi Pharmaceutical Co., Ltd., 10% by mass, and "Marpoteron E-722" manufactured by the same company as a cross-linking agent, 0.5% by mass was used, and the amount to be applied was dried. By weight, 3.0 wt% was sprayed on the cotton. Next, in the heat treatment step, the silicone resin was heat-cured and fixed by heat treatment at 140 to 190 ° C. for 1 to 10 minutes.

(Example 2)
The same procedure as in Example 1 was carried out except that a bicomponent conjugated yarn of polyethylene terephthalate and polytrimethylene terephthalate, a fineness of 56decitex, and 24 filaments were used as the core yarn. The physical properties of the obtained stuffing yarn are summarized in Table 2.

(Comparative Example 1)
The same procedure as in Example 1 was carried out except that polyethylene terephthalate filament yarn, fineness 33decitex, and 18 filaments were used as the core yarn.
The above conditions and results are summarized in Table 1.

As is clear from Table 1, Examples 1 and 2 showed a slight decrease in bulkiness as compared with Comparative Example 1. It seems that this is because the mass is large and heavy because it expands and contracts. The stretch stretch ratio and the stretch elastic modulus were significantly improved in Examples 1 and 2 as compared with Comparative Example 1, and a batting material having high stretchability was obtained.

The stuffing thread of the present invention is useful for duvets, blankets, sleeping bags, pillows, cushions, mats, stuffed animals, rugs, jackets, shirts, pants, skirts, vests, coats, cold-weather clothing, inner clothing, work clothes, neck warmers, etc. Is. Clothing such as jackets, shirts and pants is suitable for sports.

1 Long fiber entangled yarn 2,4a Core yarn (latent crimp type stretch yarn)
3,5a Flower thread 4,5,20 Winding thread body 6,7 Feed roller 8 Thread guide 9 Thread path of entangler 10 Air entangler 11 Pressure air 12 Mixed fiber entangled thread 13 Deliver roller 14 Winder roller

Claims (8)

A padding yarn composed of at least two types of long fibers A and B.
The long fiber A is relatively shorter than the long fiber B,
The long fiber A and the long fiber B are integrated,
The long fiber A is a stuffing yarn characterized by being a stretchable yarn having stretchability. The filling yarn according to claim 1, wherein the long fiber A is a latent crimp type stretch yarn. The filling yarn according to claim 1 or 2, wherein the long fiber B is a polyester hollow yarn. The filling yarn according to any one of claims 1 to 3, wherein the mass per unit length of the filling yarn is in the range of 0.01 to 3 g / m. The weight ratio of the long fiber B to the long fiber A is 80 to 99% by mass when the long fiber B and the long fiber A are used as a population, according to claims 1 to 4. The stuffing thread described in either. The long fiber A and the long fiber B are integrated by at least one process selected from entanglement processing, air jet processing, winding processing, and processing of injecting the long fiber B onto the long fiber A. Item 2. The filling thread according to any one of Items 1 to 5. The filling thread according to any one of claims 1 to 6, wherein the filling thread is coated with a resin and fixed by curing. A stuffing object, characterized in that the side fabric is filled with the stuffing thread according to any one of claims 1 to 7.