JP5094338B2 - Artificial feathers and artificial feather products - Google Patents

Description

  The present invention relates to an artificial feather using a hygroscopic exothermic fiber as a part of a fiber and an artificial feather product using the same while fixing filament fibers in a loop shape.

  In general, waterfowl feathers are used as feathers filled in feather products such as duvets and feather jackets. Waterbirds include goose (goose), duck (duck), and Eider (wild duck) inhabiting the Arctic coastline. There are two types of feathers: down, which corresponds to the chest, and feathers 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 highly bulky, warm, and occupy the status of high-quality materials as feather products for comforters and feather jackets.

  However, natural feathers depend on water birds, and the supply amount is limited, and the supply amount fluctuates due to the influence of natural conditions and diseases (for example, avian influenza virus). Or, from the viewpoint of nature conservation, there are limits to capturing wild birds. In addition, natural feathers can cause bad odors if washed insufficiently, so remove the filth that causes bad odors in advance and maintain a certain level of cleanliness and oxygen count to see how much the feathers are washed. Management to keep in In addition, there is a problem that it is not easy to wash down feather products such as down duvets and down jackets.

  Therefore, there have been many proposals for artificial feathers. Patent Document 1 proposes that a short fiber is bent in a loop shape to fix a concentrated point. Patent Document 2 proposes that an air nozzle is used to melt the core fiber and the loop fiber after air entanglement. Patent Document 3 proposes that polyester fibers are shrunk by heat treatment to develop crimps and have bulkiness and elasticity.

However, although the artificial feathers described in Patent Documents 1 to 3 are close in form, they are considerably different from natural feathers in actual use feeling when used as a stuffing such as a jacket or a futon.
JP-A-55-158366 JP 58-146385 A JP-A-6-93513

The present inventor has found that the difference in actual use is due to the heat generation effect of natural feathers, and by having a hygroscopic heat generation fiber in a part of the loop fiber and / or core yarn, It has been found that artificial feathers close to natural feathers can be obtained.

According to the present invention, the following inventions 1 to 8 are provided.
1. An artificial feather in which a plurality of loop-shaped fibers are integrated with a core yarn, wherein the loop-shaped fiber is composed of a multifilament fiber, and the core yarn is composed of at least two types of yarns having different melting points, An artificial feather comprising a hygroscopic exothermic fiber in a part of a fiber and / or core yarn, and the loop yarn fiber is integrated by heat-sealing the core yarn.
2. An artificial feather in which a plurality of loop fibers are integrated with a core yarn, the loop fibers are composed of multifilament fibers, and the core yarn is composed of at least a composite fiber composed of two or more polymers having different melting points. An artificial feather comprising a loop-like fiber and / or a hygroscopic exothermic fiber in a part of the core yarn, and the loop-like fiber is integrated by heat-sealing the core yarn.
3. 3. The artificial feather according to 1 or 2 above, wherein a part of the loop-like fiber has a hygroscopic exothermic fiber.
4). 4. The artificial feather according to 3 above, wherein the moisture-absorbing heat-generating fiber is twisted with a fiber constituting the loop-shaped fiber.
5. The artificial feather according to any one of 1 to 4, wherein an average length of loops of the plurality of loop-shaped fibers is in a range of 5 to 200 mm.
6). The weight ratio of the plurality of loop fibers to the core yarn is any one of the above 1 to 5 in which the ratio of the loop fibers is in the range of 70 to 99 wt% when the loop fibers and the core yarn are used as a parameter. The described artificial feather.
7). The artificial feather according to any one of 1 to 6, wherein the single fiber fineness of the plurality of loop-shaped fibers is in the range of 10 to 600 deci tex.
8). An artificial feather product in which the artificial feather according to any one of 1 to 7 is filled in a fabric.

  The artificial feather product of the present invention is a product in which the artificial feather is filled in a fabric. Here, the artificial feather product means a futon, a blanket, a sleeping bag, a pillow, a cushion, a mat, a cushion, a quilt, a jacket, a vest, a coat, a feather suit, gloves, a hat, a muffler, and the like.

  In the present invention, the multifilament fiber forms a plurality of loop-shaped fibers, and the core yarn is formed by heat-sealing the loop fibers to integrate the loop-shaped fibers. Since it has a bulk durability and a moisture-absorbing exothermic fiber, it can provide an artificial feather capable of obtaining the same feeling as natural feathers and an artificial feather product using the same.

  The artificial feather of the present invention is composed of a plurality of loop-like fibers (also referred to as flower yarns) and a core yarn. The loop-like fiber has at least multifilament fibers that are long fibers, and also has hygroscopic heat-generating fibers in a part of the loop-like fibers and / or core yarn, so that artificial feathers closer to natural feathers can be obtained. That is, by making the core part reciprocate using multifilament fibers and forming a plurality of loops, it is possible to impart dullness due to the structure of the loop itself, and similar to natural feathers by using hygroscopic heating fibers Heat generation performance can be imparted.

  As long as the loop fiber is a multifilament fiber, any fiber can be used. Examples thereof include synthetic fibers such as polyethylene terephthalate (PET), polyethylene, polypropylene, acrylic and nylon, regenerated fibers such as rayon and cupra, and natural fibers such as silk.

  The plurality of loop-shaped multifilament fibers may be composed of straight fibers and shrink fibers. If it does in this way, a contraction fiber will enter inside, a straight fiber will be arranged outside, and it will become an artificial feather of a 2 layer structure, and a volume feeling will become still higher.

  The average length of the loops of the plurality of loop-like fibers is preferably in the range of 5 to 200 mm, more preferably in the range of 8 to 45 mm, and particularly preferably in the range of 10 to 40 mm. If a loop fiber is the said range, a texture can further be improved.

  The single fiber fineness of the loop fiber is preferably in the range of 10 to 600 deci tex. More preferably, it is the range of 30-400 deci tex, Most preferably, it is the range of 50-300 deci tex. If the fineness is within the above range, it is difficult to sag and the texture is good.

  The core yarn is composed of at least two types of yarns having different melting points. The core yarn having a relatively low melting point is used for fusing and integrating the looped fibers.

  Core yarn is polypropylene fiber (melting point 160-165 ° C), propylene-ethylene random copolymer fiber (melting point 135-150 ° C), propylene-ethylene block copolymer fiber (melting point 160-165 ° C), high density polyethylene (melting point 123-135 ° C) ), Medium density polyethylene (melting point 120 to 123 ° C.), low density polyethylene (melting point 105 to 120 ° C.), low melting point polyester fiber (melting point 160 to 190 ° C.), low melting point thermal bonding fiber yarn (low melting point nylon, melting point 110 to 110 ° C.) At least two kinds of fibers having different melting points are selected from many fibers such as 113 ° C.).

The core yarn may have a configuration including at least a composite fiber composed of two or more polymers having different melting points. Examples of the composite fiber composed of two or more polymers having different melting points include conjugate fibers in which polymers having different melting points are combined in a core-sheath shape, etc., specifically, the high melting point polymer is a polypropylene polymer, Examples thereof include a core-sheath fiber in which the low melting point polymer is made of a polyethylene polymer or a low melting point polypropylene polymer. A composite fiber composed of two or more polymers having different melting points may constitute a core yarn alone or in combination with other core yarns. From the viewpoint of more reliably integrating the loop-like fibers, it is preferable to use the core-sheath fiber in combination with the low-melting point heat-bonding fiber yarn.
The difference in melting point between at least two types of core yarns having different melting points or two or more polymers having different melting points is preferably 10 to 100 ° C.

  In the present invention, a hygroscopic exothermic fiber is used as a part of the loop fiber and / or the core yarn. As the hygroscopic exothermic fiber, a conventionally known fiber may be used and is not particularly limited. For example, acrylic acid-based moisture-absorbing / releasing-moisture-absorbing exothermic fibers, synthetic fibers and cellulose fibers having chemically modified hydrophilic groups with high density and strong cross-linking, and wet exothermic fibers with amino groups, carboxyl groups or hydroxyl groups introduced Specific examples include “breath thermo” manufactured by Toyobo Co., Ltd., “Sunburner” manufactured by Toho Textile Co., Ltd., which are polyacrylate-based moisture-absorbing exothermic fibers.

  The hygroscopic exothermic fiber is preferably used together with the multifilament fiber as a part of the loop fiber. This is because the heat generation uniformity of the entire product can be maintained by using it as a part of the loop-like fiber rather than the core yarn. Furthermore, it is preferable that the loop-like fiber and the hygroscopic heat-generating fiber are twisted. This is because the hygroscopic exothermic fibers can be more uniformly held by twisting the loop-like fibers and the hygroscopic exothermic fibers.

  The weight ratio of the plurality of loop-shaped fibers to the core yarn is preferably in the range of 70 to 99 wt% when the loop-shaped fibers and the core yarn are used as a parameter. More preferably, it is the range of 80-98 wt%, Most preferably, it is the range of 85-97 wt%. If it is the said range, the fixed integration by a core thread will become firm, and a texture will also become favorable.

  The average weight per artificial feather of the present invention is preferably in the range of 10 to 100 mg, more preferably 20 to 80 mg, and particularly preferably 40 to 60 mg. When the average weight is in the above range, the handleability is good, and a good texture can be exhibited when a feather product such as a filling is made. In the artificial feather of the present invention, a silicone treatment agent may be further heat-set.

  An example of the method for producing the artificial feather of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic explanatory diagram of the manufacturing process. Specifically, the flower yarn 1 is supplied to the waist gauge 3 by being rotated or shaken, and at least two types of core yarns 2a and 2b having different melting points are provided so that at least a part of the flower yarn 1 is sandwiched therebetween. To supply. Here, the waist gauge is a funnel-shaped instrument, which is an instrument that is capable of temporarily storing the thread, with the upper part being largely open, allowing the thread to be dropped therein, and the lower outlet being narrowed.

  Next, the flower yarn 1 and the core yarns 2 a and 2 b are twisted together to form a loop yarn 4. The loop yarn 4 is formed by actual twisting by the twisting machine 10. That is, the bobbin 7 is rotated via the motor 5 and the belt 6, and the traveler 9 is incorporated in the ring 8 around this, and the loop yarn 4 passing through the traveler 9 is rotated by being delayed from the rotation of the bobbin 7. Real twist is applied. A preferable number of twists is 150 to 350 times / m.

  The loop yarn 4 thus obtained is unwound from the bobbin 7 and heat treated. The heat treatment temperature is preferably 90 to 160 ° C. at which the core yarn having a relatively low melting point is fused, and the heat treatment time is preferably about 1 second to 20 minutes. By this heat treatment, the core yarn having a relatively low melting point is fused, and the loop fiber and the core yarn are integrated. The loop yarn is cut to a predetermined length. A preferable cut length is 20 to 50 mm.

  The cut loop yarn may be sprayed with silicone resin. As the silicone resin, it is preferable to use a reactive silicone treating agent having a molecular end having a hydrogen group (—OH), a vinyl group (—CH═CH 2) or the like. The spraying amount is preferably sprayed in an amount of 0.1 to 1.0 wt% with respect to the artificial feather in terms of dry weight.

Hereinafter, the present invention will be specifically described with reference to examples. In addition, this invention is not limited to the following Example.

Example 1
First, two PET multifilament fibers (60 deci tex, four filaments, straight yarn) and one hygroscopic exothermic fiber (“Sunburner (LP1218L30)” manufactured by Toho Textile Co., Ltd.) are S-twisted.

Subsequently, as the flower yarn 1 shown in FIG. 1, two S-twisted yarns and one PET multifilament fiber (280 decitex, 24 filaments, straight yarn) are rotated or swayed in a waist cage 3. Supplied. As an example, in the case of thread swinging, the reciprocating distance is about 40 mm, and in the case of rotation, the loop on one side when picked up at the center of the loop is about 20 mm.

  Two low-melting point heat-bonding fiber yarns (low melting point nylon, melting point 110-113 ° C, 110 deci tex single yarn) as the core yarn 2a, PET multifilament fiber (78 deci tex, 48 filaments, straight yarn) as the core yarn 2b Two were supplied to the waist cage 3. At this time, the core yarns 2a and 2b were supplied so as to sandwich the loop of the flower yarn 1. Subsequently, the flower yarn 1 and the core yarns 2a and 2b were twisted together to form a loop yarn 4. The loop yarn 4 was actually twisted by the twisting machine 10. The number of twists was 250 times / m.

  The loop yarn 4 thus obtained was unwound from the bobbin 7 and heat treated. The heat treatment temperature was 120 ° C. at which the low melting point heat-bonding fiber yarn was fused, and the heat treatment time was 5 seconds. By this heat treatment, the low-melting point heat-bonding fiber yarn was fused, and the loop fiber and the core yarn were integrated. An artificial feather was obtained by cutting this loop yarn into a cut length of 20 to 30 mm in the cutting step.

(Comparative Example 1)
As the flower yarn 1, except that PET multifilament fiber (total fineness 280 decitex, 24 filaments, straight yarn) and PET multifilament fiber (total fineness 84 decitex, 12 filaments, high shrinkage yarn) were used, Artificial feathers were prepared in the same manner as in Example 1.

  Using the artificial feather obtained above, a moisture absorption exothermic test was conducted. First, 2.5 g of a sample was collected, and the sample was dried at 105 ° C. for 120 minutes to be in an absolutely dry state. Subsequently, the sample was placed in a state of a temperature of 30 ° C. and a humidity of 90% RH, and the initial sample surface temperature and the sample surface temperature after a predetermined time elapsed were measured. The sample surface temperature was measured using a commercially available thermography. For comparison with the examples, a natural feather (goose) moisture absorption exothermic test was also conducted as a reference example. The respective test results are shown in Table 1.

  As shown in the above test results, the artificial feather of the present invention showed moisture absorption heat generation performance similar to that of natural feathers. In addition, the use of moisture-absorbing heat-generating fibers as part of the loop-like fibers results in a uniform heat generation state. Furthermore, since some of the fibers constituting the loop-shaped fibers and the moisture-absorbing heat-generating fibers are twisted, more heat generation occurs. The condition was uniform. In addition, when the artificial feathers of the present invention were filled into the fabric and tested for practical use as products, there was warmth comparable to natural feathers.

  The artificial feather of the present invention is suitable for futons, blankets, sleeping bags, pillows, cushions, mats, cushions, rugs, jackets, vests, coats, feather clothes, gloves, hats, mufflers and the like.

Schematic explanatory drawing showing the manufacturing process of the artificial feather of the present invention

Explanation of symbols

1 Loop fiber (flower yarn)
2a, 2b Core yarn 3 Waist gauge 4 Loop yarn 5 Motor 6 Belt 7 Bobbin 8 Ring 9 Traveler 10 Twisting machine

Claims (8)

An artificial feather in which a plurality of looped fibers are integrated with a core thread,
The loop fiber is composed of multifilament fiber,
The core yarn is composed of at least two types of yarns having different melting points,
Having a hygroscopic exothermic fiber in a part of the loop fiber and / or core yarn,
An artificial feather characterized in that the core yarn is thermally fused to integrate the loop-like fibers. An artificial feather in which a plurality of looped fibers are integrated with a core thread,
The loop fiber is composed of multifilament fiber,
The core yarn includes at least a composite fiber composed of two or more polymers having different melting points,
Having a hygroscopic exothermic fiber in a part of the loop fiber and / or core yarn,
An artificial feather characterized in that the core yarn is thermally fused to integrate the loop-like fibers.   The artificial feather according to claim 1 or 2, wherein a part of the loop-like fiber has a hygroscopic heat-generating fiber.   The artificial feather according to claim 3, wherein the moisture-absorbing heat-generating fiber is twisted with a fiber constituting the loop-shaped fiber.   The artificial feather according to any one of claims 1 to 4, wherein an average length of the loops of the plurality of loop-shaped fibers is in a range of 5 to 200 mm.   The weight ratio between the plurality of loop fibers and the core yarn is such that the ratio of the loop fibers is in the range of 70 to 99 wt% when the loop fiber and the core yarn are used as a parameter. The artificial feather according to item 1.   The artificial feather according to any one of claims 1 to 6, wherein a single fiber fineness of the plurality of loop-shaped fibers is in a range of 10 to 600 deci tex. The artificial feather product which filled the fabric with the artificial feather of any one of Claims 1-7.

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