JP2020147866A - Thread for stuffed article and stuffed article using the same - Google Patents

Abstract

To provide a thread for stuffed article which has high bulkiness and is less likely to be fatigued, and a stuffed article using the same.SOLUTION: A thread (1) for stuffed article is composed of at least two kinds of a long fiber A(2) and a long fiber B(3), in which the long fiber A(2) is relatively shorter than the long fiber B(3), the long fiber A(2) and the long fiber B(3) are integrated with each other, the long fiber B(3) is a polyester hollow thread having a single fiber fineness of 3 decitex or more, and a resin-based crosslinking agent is imparted to the thread (1) for stuffed article as a surface treatment agent and is fixed by curing. In a stuffed article, at least stuffed article selected from bedding, a blanket, a sleeping bag, a cushion, a mat, a stuffed toy, a lap robe, a jacket, a shirt, pants, a skirt, a vest, a coat, a cold-proof clothing, an inner clothing and a neck warmer is filled with the thread for stuffed article.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 and warm, and occupy the position of high-class 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 crimps and 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 for 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, although the stuffed object of the prior art is excellent in bulkiness, further improvement in bulkiness is required in the market.
The present invention provides a stuffing thread which is bulky and has high heat retention in order to satisfy the above requirements, and a stuffing object using the same.

The stuffing thread of the present invention is a stuffing thread 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 at least a urethane-based cross-linking agent, an acrylic-based cross-linking agent or an epoxy-based cross-linking agent is applied to the filling thread as a cross-linking agent and fixed by curing. It is a feature.

The stuffing object of the present invention uses the above-mentioned stuffing thread from a duvet, blanket, sleeping bag, pillow, cushion, mat, stuffed animal, rug, jacket, shirt, pants, skirt, vest, coat, cold protection clothing, inner clothing and neck warmer. It is characterized by filling at least one packing object of choice.

In the present invention, the long fiber A is relatively shorter than the long fiber B, the long fiber A and the long fiber B are integrated, and at least a urethane-based cross-linking agent and an acrylic-based cross-linking agent are used for the stuffing thread. By applying a resin-based cross-linking agent such as a cross-linking agent or an epoxy-based cross-linking agent and fixing by curing, it is possible to provide a stuffing thread which is bulky, hard to settle, and has high heat retention, and a stuffing object using the same. it can. In addition, it has washing resistance, and even if it is washed, the long fibers A and the long fibers B do not separate, and since they are long fibers, there is little deviation of the stuffed cotton.

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 cross-sectional photograph of a polyester different shrinkage mixed fiber of long fiber A (core yarn) used in one embodiment of the present invention. FIG. 4 is a cross-sectional photograph of a polyester hollow yarn of long fiber B (flower yarn) used in one embodiment of the present invention.

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, bulkiness is obtained.

In the present invention, it is preferable to use a polyester hollow yarn having a single fiber fineness of 3 decitex or more as the long fiber B. This enhances the bulkiness and heat retention effect. If the single fiber fineness is less than 3decitex, bulkiness and heat retention effect cannot be expected. Note that decitex is also displayed as T.

At least a urethane-based cross-linking agent, an acrylic-based cross-linking agent, or an epoxy resin cross-linking agent is applied to the stuffing thread as a cross-linking agent and fixed by curing. By using the cross-linking agent, bulkiness and washing resistance can be improved. Further, as a surface treatment agent, it is preferable to use a resin agent for improving smoothness, for example, a silicone-based resin in combination. In particular, it is preferable to use a silicone-based resin agent and a urethane-based cross-linking agent in combination.

It is preferable that the stuffing yarn has a bulkiness of 140 mm or more by a measuring method based on JIS L 1903-1998 "Test method for feathers for filling materials used in feather products".

The long fiber A is preferably a polyester different shrinkage mixed fiber. The different shrinkage mixed fiber yarn is a yarn obtained by mixing a plurality of types of filament fibers having different heat shrinkage differences and setting the heat shrinkage difference to 6%, preferably 8% or more. As such a polyester different shrinkage mixed yarn, there is a trade name "Silmy" manufactured by Unitika Fibers. This polyester different shrinkage mixed fiber is a mixture of two types of polyethylene terephthalate filament fibers having a triangular cross section, and the difference in heat shrinkage is 8%.

The long fiber B preferably has a single fiber fineness of 3 decitex or more and a hollow ratio of more than 30%. As a result, the bulkiness and heat retention can be maintained high.

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 fiber B is preferably 1.1 to 100 times longer than the long fiber A, more preferably 2 to 100 times, and further preferably 4 to 60 times. Within this range, the long fibers B become loop fibers as much as they are long, and can be made bulky.

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 to entangle or swirl it.

The stuffing thread of the present invention is at least one selected from duvets, blankets, sleeping bags, pillows, cushions, mats, stuffed animals, rugs, jackets, shirts, pants, skirts, vests, coats, cold weather clothing, inner clothing and neck warmers. It is filled in a stuffed object.

The stuffing object is machine washable. Bedding is suitable for hotels, rentals, disasters, hospitals, facilities for the elderly, etc., and clothing is suitable for sports because it is washable and washable.

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.

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 yarn for long fiber filling according to an embodiment of the present invention. In this long fiber stuffing thread 1, the constituent fibers of the core thread 2 (long fiber A) and the flower thread 3 (long fiber B) are entwined with each other, and the flower thread 3 (long fiber B) is partially opened. Loop-shaped fibers are formed in.

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-based resin and a resin cross-linking agent are applied to the obtained entangled yarn and fixed by curing. 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 silicone resins such as "Teron E-530" bulky silicone and "Teron E-731" manufactured by Matsumoto Yushi Pharmaceutical Co., Ltd. can be used. As the resin cross-linking agent, at least one kind of cross-linking agent selected from urethane-based cross-linking agents, for example, Nichika Kagaku Co., Ltd. resin, acrylic-based cross-linking agent, for example, DIC resin, and epoxy-based cross-linking agent, for example, DIC resin. It is preferable to use in combination. Of these, the combined use of a silicone resin and a urethane cross-linking agent is preferable. The ratio of the cross-linking agent to 100 parts by mass of the silicone resin is preferably 1 to 100 parts by mass. The total amount of the silicone resin and the cross-linking agent 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 and fixed by heat treatment at 140 to 190 ° C. for 1 to 20 minutes.

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>
The bulkiness was measured by measuring the batting material (stuffing thread) by a method based on 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.
<Washing evaluation>
The obtained long fiber stuffed cotton was aligned in one direction, and 40 g of the long fiber stuffed cotton sheet was filled in a side area of 30 cm in length and 30 cm in width to form a stuffed object. Using a household washing machine, 30 g of a commercially available detergent (Kao Corporation "Attack") was added, washed with water, rinsed twice, and then dried. After repeating this washing step 5 times, the height was measured by the method described in JP2012-067429, and the reduction rate of the height of the stuffed object after washing was calculated. Those with a reduction rate of 10% or less were designated as A.
<Smoothness evaluation>
In the manufacturing process of long-fiber stuffed cotton, when winding the stuffed cotton from the dryer outlet, check whether the stuffed cotton is attached to the conveyor and whether the stuffed cotton is attached to each other. B is the one whose productivity decreases due to adhesion.

(Example 1)
As the core yarn, Unitika Fibers, Inc., trade name "Silmy", fineness: 33decitex, number of filaments: 18 (33T / 18F) was used. This polyester different shrinkage mixed fiber is a mixture of two types of polyethylene terephthalate filament fibers having a triangular cross section, and the difference in heat shrinkage is 8%. A cross-sectional photograph is shown in FIG. As the flower thread, the hollow thread shown in FIG. 4, fineness: 39decitex, number of filaments: 12 (39T / 12F, single fiber fineness 3.25T / F) was used. The hollow ratio was 35%. Using the air entanglement device shown in FIG. 2, a stuffing thread was produced under the conditions shown in Table 2.
Next, in the surface treatment step, a urethane-based cross-linking agent was applied. As the urethane-based cross-linking agent, an aqueous solution of a resin manufactured by NICCA CHEMICAL CO., LTD., 5% by mass was used, and the amount to be applied was 1.5 to 3.5% by mass with respect to stuffed cotton by dry weight. Next, in the heat treatment step, heat treatment was performed under the conditions shown in Table 3, and the urethane-based cross-linking agent was heat-cured and fixed. The results of the obtained stuffing yarn are shown in Table 4.

(Example 2)
Using the filling thread obtained in Example 1, in the surface treatment step, the urethane resin cross-linking agent was a resin manufactured by Nicca Chemical Co., Ltd., 5% by mass, and the silicone-based resin agent was "Teron E-" manufactured by Matsumoto Yushi Seiyaku Co., Ltd. An aqueous solution of 530 "in a 0.5% by mass was used, and the amount to be applied was 1.5 to 3.5% by mass based on stuffed cotton by dry weight. The heat treatment conditions were the same as in Example 1. The results of the obtained stuffing yarn are shown in Table 4.

(Example 3)
Using the stuffing thread obtained in Example 1, in the surface treatment step, a resin manufactured by DIC Corporation, a 10% by mass aqueous solution was used as the acrylic cross-linking agent, and the amount to be applied was dry weight to the stuffed cotton. 1.5 to 3.5% by mass was sprayed. The heat treatment conditions were the same as in Example 1. The results of the obtained stuffing yarn are shown in Table 4.

(Example 4)
The stuffing thread obtained in Example 1 was used, and in the surface treatment step, a resin manufactured by DIC Corporation, a 10% by mass aqueous solution was used as the epoxy-based cross-linking agent, and the amount to be applied was dry weight to the stuffed cotton. 1.5 to 3.5% by mass was sprayed. The heat treatment conditions were the same as in Example 1. The results of the obtained stuffing yarn are shown in Table 4.

(Comparative Example 1)
As the core yarn, Unitika Fibers, Inc., trade name "Silmy", fineness: 33decitex, number of filaments: 18 (33T / 18F) was used. This polyester different shrinkage mixed fiber is a mixture of two types of polyethylene terephthalate filament fibers having a triangular cross section, and the difference in heat shrinkage is 8%. A cross-sectional photograph is shown in FIG. As the flower thread, the hollow thread shown in FIG. 4, fineness: 39decitex, number of filaments: 12 (39T / 12F, single fiber fineness 3.25T / F) was used. The hollow ratio was 35%. Using the air entanglement device shown in FIG. 2, a stuffing thread was produced under the conditions shown in Table 2.
Next, in the surface treatment step, a silicone-based resin and a silicone-based cross-linking agent were applied. As the silicone-based resin, "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, an aqueous solution was used, and the amount to be applied was dry weight. 1.5 to 3.5% by mass was sprayed on the cotton stuffed with. Next, in the heat treatment step, heat treatment was performed under the conditions shown in Table 3, and the silicone resin was heat-cured and fixed. The results of the obtained stuffing yarn are shown in Table 4.

As is clear from Table 4, it was confirmed that Examples 1 to 4 were more bulky than Comparative Example 1. In particular, Example 2 was a preferable filling thread because it had smoothness and a good texture.
As is clear from the above examples, it was confirmed that the stuffed object of the present invention is bulky, does not easily settle, has high heat retention, and has high washing resistance.

The stuffing thread of the present invention is selected from duvets, blankets, sleeping bags, pillows, cushions, mats, stuffed animals, rugs, jackets, shirts, pants, skirts, vests, coats, cold weather clothing, inner clothing, work clothes and neck warmers. It is packed in at least one padding object.

1 Stuffing thread 2, 4a Core thread (long fiber A)
3,5a filament (long fiber B)
4, 5, 20 Winding thread body 6, 7 Feed roller 8 Thread guide 9 Thread path of entangler machine 10 Air entangler 11 Pressure air 12 Mixed fiber entangled thread 13 Deliver roller 14 Winder roller

Claims (10)

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,
A stuffing thread characterized in that at least a urethane-based cross-linking agent, an acrylic-based cross-linking agent or an epoxy-based cross-linking agent is applied to the stuffing thread as a cross-linking agent and fixed by curing. The stuffing thread according to claim 1, wherein a surface treatment agent is further added to the stuffing thread. The filling thread according to claim 2, wherein the cross-linking agent is at least a urethane-based cross-linking agent, and the surface treatment agent is at least a silicone-based resin. The stuffing thread according to claim 1 to 3, wherein the stuffing thread has a bulkiness of 140 mm or more by a measuring method based on JIS L 1903-1998 "Test method for feathers for filling materials used in feather products". .. The filling yarn according to any one of claims 1 to 4, wherein the long fiber B is a polyester hollow yarn having a single fiber fineness of 3decitex or more and a hollow ratio of more than 30%. The filling yarn according to any one of claims 1 to 5, 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 fibers B to the long fibers A is such that the ratio of the long fibers B is 51 to 99% by mass when the long fibers B and the long fibers A are used as a population, according to claims 1 to 6. The stuffing thread described in either. The long fibers A and the long fibers B are integrated by at least one processing selected from entanglement processing, air jet processing, winding processing, and processing of injecting the long fibers B onto the long fibers A. The filling thread according to any one of 7. A stuffing object, wherein the stuffing thread according to any one of claims 1 to 8 is filled in a side fabric. The stuffing object according to claim 9, wherein the stuffing object is washable in a washing machine.