JPH09322993A - Padding object - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a padding object having a high water draining property in wetting and water washing and has an excellent deodorant property by incorporating polyester fibers into wadding and side fabrics and incorporating the wadding which has a water absorption height of a specific value and has a deodorant property into this object. SOLUTION: The fiber padding object, such as bedding like quilt and mattress, or back rest cushion or sleeping bag, is formed by using the polyester fibers and specifying the water absorption height of the wadding to <=5mm, more preferably 0mm in order to enhance the water draining property and quick drying property. The wadding is immersed in the liquid of a silicone resin or fluorine based resin and is subjected to squeezing, drying and plastication heat treatment in order to impart water repellency to the surfaces of the wadding fibers. The wadding having the water absorption height of <=5mm is preferably incorporated into the wadding at >=15wt.% of the total weight of the wadding and most preferably at 100wt.%. The padding object contains the wadding having the deodorant property and the deodorant component of the wadding fibers is obtd. by grafting a free acid group by graft polymn.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a duvet such as a comforter, a mattress, a skin comforter, a kotatsu comforter, a cushion, a bed mat, a pillow, a back cushion for a sofa or a vehicle seat, a stuffed toy, or a padded cotton pad. It is a padded object that can be applied to winter clothes, sleeping bags, etc., with high drainability,
The present invention relates to a stuffed object having deodorant properties.

[0002]

2. Description of the Related Art Conventionally, polyester-based synthetic fiber stuffed cotton exhibits excellent bulkiness, is lightweight and has excellent heat retention, and thus has been used in many products for filling applications. As such polyester-based synthetic fiber stuffed cotton, three-dimensional crimps are developed by composite spinning, asymmetric cooling, or the like so as to have excellent bulkiness, or, for example, as disclosed in Japanese Patent Publication No. 6-51076. , By combining a combination of forward-direction type three-dimensional crimped fibers and reverse type three-dimensionally crimped fibers, it can be made to have excellent bulkiness under no load or under load, or the fiber cross-section can be deformed like hollow, and the fiber fineness It has been proposed that the fiber length or oil agent is optimized to improve bulkiness and texture.

[0003]

However, recently, there has been an increasing demand for washing a padded object such as a futon with water and for reducing the wetness of the bedclothes for nursing care by a liquid material.

An object of the present invention is to provide a stuffed article which has a high drainage property when wet with rainwater, drinking water, juice, urine or the like, and has a deodorant property when washed with water.

[0005]

The present invention has the following constitution in order to solve the above-mentioned problems.

[0006] That is, a stuffed article in which both the stuffed cotton and the side material contain polyester fibers, and the stuffed cotton having a water absorption height of 5 mm or less measured by the method described in the text and having deodorant properties. It is a stuffing object characterized by including stuffed cotton.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to embodiments.

Generally, comforters, mattresses, skin comforters, kotatsu comforters, cushions, bed pads, and other duvets, and sofas, back cushions for vehicle seats, stuffed toys, cold-clothes containing padded cotton, and fiber-stuffed objects such as sleeping bags. Since many polyester fibers are used, the wettability and dryability after washing with water have improved. However, it has become necessary to further improve wettability with drinking water, juice, urine, rainwater, etc., and drainage and quick-drying properties after washing in applications such as medical use and children's use. Among the stuffed objects, it is necessary to improve the water drainage property and the quick-drying property of the stuffed cotton, which is particularly bulky.

In order to improve the water drainage property and the quick-drying property, in the present invention, the water absorption height of the stuffed cotton measured at least by the method described later is 5 mm or less, more preferably 0 mm. is there.

In order to reduce the water absorption height of the stuffed cotton to 5 mm or less, the surface of the stuffed cotton fiber may be made water repellent. The method for making the surface of the stuffed cotton fiber water repellent is not particularly limited,
For example, it is also possible to add a water-repellent resin to the stuffed cotton. For imparting a water-repellent resin, for example, a method of dipping a stuffed cotton in a liquid of a silicone-based resin or a fluorine-based resin, squeezing, drying, and heat-resinizing the resin, or a method of applying a silicone-based resin liquid or a fluorinated resin to the stuffed cotton There is a method in which the resin is uniformly applied with a sprayer, dried, and heat-treated for resinification.

In terms of water drainage and quick drying, it is preferable that the side surface of the stuffed object is also treated with a water-repellent resin.

The stuffed cotton having a water absorption height of 5 mm or less is preferably 15% by weight or more, and most preferably 100% by weight, based on the total weight of the stuffed cotton.

Further, the drainage property and the drying speed of the entire stuffed object are increased, and the state containing a large amount of water is shortened,
To prevent the dimensional change of the stuffed object,
The water content of the filled object measured by the method described below is preferably 270% or less, and more preferably 250% or less. In order to obtain such a water content, it is preferable to make the surface of the stuffed cotton fiber water-repellent.

Since the stuffed object such as the above-mentioned futon is generally made of cotton and the side material is made of cotton, if it is washed with water as it is, the size of the stuffed article is reduced and the texture becomes coarse and hard. There was a problem of impairing the appearance, such as wrinkles on the ground, and the dye fell off and faded. In order to solve these problems, in the present invention, such a stuffed object, preferably each of cotton, side cloth and sewing thread, can be washed with a household detergent at least in a household washing machine as it is, at the time of washing with water. Includes a polyester fiber that has a very fast drying rate with little change in dimensions, bulk, texture, or appearance due to the rubbing action of water, detergent, or a stream of water, or the drying of a filled object wet with water. It is composed of raw materials.

In the present invention, it is preferable that the stuffed cotton, the side cloth and the sewing thread constituting the stuffed object are preferably made of 100% polyester fiber in order to achieve the object of the present invention. As long as the quality is not impaired, fibers other than polyester fibers such as cotton and nylon may be mixed, and hygroscopic polyester fibers may be used as the hygroscopic fibers. In particular, it is preferable to mix a small amount of such hygroscopic fiber in the side ground from the viewpoint of comfort and touch due to moisture absorption when using the stuffed object. When mixing fibers having hygroscopicity, the proportion of polyester fibers used is
From the viewpoint of reducing changes in bulk, texture, and appearance and increasing the drying speed, it is preferably 60% by weight or more, and more preferably 70% by weight or more, based on the total weight of the packed object.

Further, in order to obtain the above quality, the proportion of the polyester fiber used in the side material is 25% by weight or more,
If possible, the amount is preferably 30% by weight or more, and on the other hand, the proportion of the polyester fiber used in the wadding is preferably 60% by weight or more, and more preferably 70% by weight or more. Furthermore, regarding the sewing thread, the proportion of polyester fiber used is
It is preferably 25% by weight or more, and more preferably 30% by weight or more.

Further, in the stuffed article of the present invention, after being washed with water, the dimensions, bulk and texture become coarse and hard, and changes in appearance such as wrinkles on the surface of the stuffed article are reduced. It is preferable that the shrinkage rate of the filled object in washing with water is 5% or less. The shrinkage ratio is measured by a method described later, and the higher value in the length direction and the width direction is preferably 5% or less.

As the stuffed object of the present invention, the side cloth and the stuffed cotton are combined and quilted with a quilting sewing machine,
It is preferable to spell with a Japanese-style sewing machine. If the spacing between quilting and binding is too narrow, the texture of the stuffed object may be impaired and sewing threads may be hung when washing with water.If it is too wide, the kneading action when using the stuffed object and the kneading action when washing with water may occur. Since this may cause the movement and entanglement of the wadding, it is preferably at least about 3 cm to about 40 cm, more preferably about 3 cm to about 30 cm.

Here, the binding interval refers to the interval from the end of the stuffed object to the quilting 1 or the Japanese binding 2, and the quilting 1 to each other, as shown in FIG. 1 (quilted comforter) and FIG. 2 (Washing cushion). and Kazutsuzuri distance a ₁ between the 2 _{cross, a 2, a 3 ~A i} , and _{B 1, B 2, B 3} ~B
It is the shortest and longest distance in _i . The stitch pitch of the binding may be appropriately selected depending on the purpose and the purpose of the purpose.

In the stuffed cotton of the stuffed article of the present invention, if the fineness is small, the bulk as an aggregate required for the stuffed cotton becomes low, and the resilience to compression and the recoverability of the bulk are lowered,
Further, as the thickness becomes thicker, the feel becomes coarse and hard, so that the fineness is preferably 0.5 to 30 denier. Further, if the fiber length is too short, the entanglement property between the fibers is deteriorated and cotton breakage easily occurs, and if it is too long, the openability and the cotton-making property are deteriorated, so that the fiber length is 10 to 100 mm. It is preferably used.

The crimp may be appropriately selected depending on the intended use, but it improves bulkiness, softness, resilience to compression, recoverability or cotton-making property, and movement of batting during use and washing, Mechanical crimping is preferably applied in order to prevent entanglement, and it is more preferable that three-dimensional crimping is performed by imparting a structural difference to each fiber by asymmetric cooling treatment at the time of yarn production of the stuffed cotton fiber. The number of crimps is 3 to 10 threads / 25 mm, and the crimping degree is 5.
It is preferably ˜30%.

The cross-sectional shape of the stuffed cotton fiber of the stuffed article of the present invention is not limited to a circle or a hollow circle, but a modified cross-section such as a polygon or a hollowed one can be used.

The polyester fiber used in the present invention is not particularly limited, but for example, terephthalic acid,
Linear polyesters such as polyethylene terephthalate, polybutylene terephthalate, or polyethylene 2,6-naphthalate containing 2,6-naphthalenedicarboxylic acid or an ester thereof as a main dicarboxylic acid component and ethylene glycol or tetramethylene glycol as a main glycol component Is mentioned. In the present invention, polyethylene terephthalate or its copolymer is particularly preferable.

As the polyester fiber, if necessary, in addition to pigments such as titanium oxide and carbon black, conventionally known antioxidants, anti-coloring agents, light stabilizers, antistatic agents, etc. may be added and blended. can do.

The stuffed article of the present invention contains a stuffed cotton having a deodorant property. As the stuffed cotton fiber having a deodorant property, for example, as shown in JP-A-3-124809, a fiber in which a deodorant component is kneaded into a polymer may be used, or JP-A-62-6978. As disclosed in Japanese Patent Laid-Open Publication No. 2004-115, a method of applying a deodorant component by post-processing may be used.

As a method of applying a deodorant component by post-processing,
It can also be obtained by grafting a free acidic group by graft polymerization. The acidic group in this method means a carboxyl group or a sulfonic acid group, and the content of the acidic group is 3.2 × 10 ⁻⁴ gram equivalent / g fiber or more in order to impart durable deodorant performance. Is more preferable, and more preferably 9.3 × 10 ⁻⁴ gram equivalent / g fiber or more. The terminal of the acidic group introduced by the graft polymerization is -COOH or -SO ₃
Most preferably, it is in the state of H, but it may be partially substituted by an ionic organic substance such as an alkali metal or an alkaline earth metal, or a general metal or a quaternary ammonium salt. Distributing a large amount of acidic groups to the surface of the fiber by such graft polymerization is a preferable example because it efficiently absorbs malodors such as ammonia, hydrogen sulfide, and mercaptans, which are said to be the source of malodor.

Regarding the deodorizing property, it is preferable to use a fiber having a deodorizing property for the stuffed cotton, but it is preferable to impart the deodorizing property to the side material of the stuffed object.

[0028]

EXAMPLES Next, the present invention will be described more specifically by way of Examples and Comparative Examples. The methods for measuring various characteristics described in the present invention are as follows.

(1) Water absorption height of stuffed cotton The fibers of the stuffed material of the stuffed object are taken out with tweezers, and about 3
The bundle of stuffed fibers is twisted at a rate of about 1 turn / cm, gathering to a denier of 00. Separately, prepare an aqueous solution prepared by mixing 10% by weight of red ink and 90% by weight of distilled water in a water tank with a ruler, and apply a load of 10 g to the lower end of the bundle of the stuffed fibers so that the stuffed fibers do not untwist. The lower end of the bundle is placed in a water tank, and after 10 seconds, the maximum rising height of the aqueous solution in the bundle of stuffed fibers is read with a ruler. The average height of the five times was determined and used as the water absorption height of the stuffed cotton.

(2) Water Content of Packing Object The packing object weight (W ₀ ) after leaving the packing object in a room at 20 ° C. × 65% RH for 24 hours is measured. Next, tap water is filled in the water tank, and the filling object is immersed in the water tank for 10 minutes,
The water content was determined by the following formula by measuring the weight (W ₁ ) of the stuffed object after draining for 3 minutes with the longitudinal direction of the stuffed object as the vertical direction.

Moisture content (%) = {(W ₁ −W ₀ ) / W ₀ } × 100 (3) Shrinkage rate Place the filling object on a flat table and use a ruler to set the width and length (l ₀ ) is measured. Next, using a commercially available fully automatic washing machine, put the stuffed object in 49 liters of a 0.2% aqueous solution of neutral detergent "Zab" (manufactured by Kao Corporation), wash it for 12 minutes with ordinary water flow, and then rinse for 2 minutes. X 2 times, dehydration is carried out for 6 minutes, the dehydrated filling object is placed on a flat wire mesh, and shade-dried for 24 hours.
After repeating the above washing and drying 10 times, the padded object is placed on a flat table, the width and length (l ₁ ) of the padded object are measured with a ruler, and the shrinkage rate is calculated by the following formula. (L ₀ , l
₁ is the average value of three points in each of the width and length directions of the stuffed object, and the shrinkage rate was calculated separately in the width and length directions of the stuffed object) Shrinkage rate (%) = [(l ₀ −l ₁ ) / L ₀ ] × 100 (4) Fineness It is measured according to the method of JIS L 1015-7-51A.

(5) Average fiber length (cut length) Measured according to JIS L 1015A method (staple diagram method). (6) Number of crimps and degree of crimp The number of crimps and the degree of crimp are JIS L 1015-7-12.
-1 and JIS L1015-7-12-2.

(7) Appearance of packed object (washing fastness,
Wrinkle), texture A commercially available fully automatic washing machine with neutral detergent "Zab" (Kao).
After putting the stuffed object in 49 liters of a 2% aqueous solution for 12 minutes and washing with a normal water stream, and then repeating the process of dehydrating for 6 minutes 10 times, the appearance of the stuffed object before washing (washing fastness,
Wrinkle), the texture and visual feeling are judged, and there is no difference (5
Grade), almost no difference (4th grade), slightly different (3rd grade), difference (2nd grade), and extremely different (1st grade).

(8) Mixed rate of fibers used (side composition of stuffed object and fiber composition of entire stuffed object) The mixed rate was measured according to JIS L 1030 fiber mixed rate test method.

(9) Deodorizing Method A: Ammonia gas detector tube method was used to open a glass column with a stuffed cotton of a stuffing object and fill 3 g of the stuffing material to obtain 1000 ppm.
A gas having an ammonia gas concentration of 3.3 cm / sec is passed at a ventilation speed of 3.3 cm / sec, and the breakthrough time and the amount of breakthrough adsorption are measured. Is also preferably 12 mg / g or more).

Method B: 3 × 6 cm of about 5% ammonia water
After impregnating 0.25 ml of the filter paper of No. 1 into a glass container of 150 ml, at the same time, the stuffed cotton of the stuffed object is opened and opened.
5 g is put and sealed, and the odor change after left for 4 hours is sensory evaluated. (No odor, slightly odor, odor, and strong odor are evaluated.) However, the laundry was washed at 40 ° C for 5 minutes under the conditions of neutral detergent "Zab" (Kao) 2g / l and greed ratio 1:50. It was washed with water and dried.

Examples 1 and 2 and Comparative Examples 1 to 3 Polyethylene terephthalate (normal polyethylene terephthalate) having an intrinsic viscosity of 0.65 was used, and the spinning temperature was 2
At 80 ° C., a take-up speed of 1350 m / min, ordinary asymmetric cooling treatment is performed directly below the spinneret, spinning is performed, and after drawing and mechanical crimping, a commercially available silicone resin liquid containing dimethylpolysiloxane as a main component is sprayed with a sprayer. Fibers to which water-repellent resin was applied were manufactured by uniformly adhering, heat-treating and fixing. The obtained fiber has a fineness of about 6 denier and a cut length of 64 m.
m hollow (38% hollow ratio) circular cross section, 4-5 crimps /
It was 25 mm and the degree of crimp was about 24 to 26%.

Next, a normal nylon 6 chip (melting point 21
5 ° C.) melt-spun and drawn to obtain a fineness of 6 denier,
After making a circular hollow (18% hollow ratio) nylon 6 staple with a cut length of 51 mm, this staple was made into acrylic acid 1
9% owf, methacrylic acid 30% owf, ammonium persulfate 1% owf, Superlite C (manufactured by Mitsubishi Gas Chemical Co., Ltd.) 3% owf, bath ratio 1:14, from room temperature to 1 ° C /
The temperature was raised to 80 ° C. at a rate of minutes, and graft polymerization was performed at 80 ° C. for 60 minutes to produce a deodorant fiber-stuffed cotton. When the graft ratio of methacrylic acid of 100% of the deodorant fiber stuffed cotton was calculated from the weight increase ratio and the amount of carboxyl groups was calculated,
3.27 × 10 ^-2 gram equivalent / gram fiber. Cut the cross section of the fiber, dye with a cationic dye,
When the distribution state of the carboxyl group was examined, it was confirmed that the carboxyl group was present in a large amount on the surface of the fiber. The deodorizing property of 100% of the deodorant fiber-stuffed cotton was 34.1 mg / g before washing and 31.0 mg / g after washing with the breakthrough adsorption amount of Method A.
The g and B methods had no odor before and after washing, and showed extremely high deodorant properties. The breakthrough time before washing of Method A was 50 minutes.

30% by weight of the obtained stuffed cotton to which the water-repellent resin has been added and 70% by weight of the odor eliminating stuffed cotton are blended and made into a cotton by a cotton making machine, and stuffed cotton for a futon. And

On the other hand, as the side material for the futon cover, 75 denier polyethylene terephthalate was used for the warp, 48 false twisted normal twisted yarn was used for the weft yarn, and 2 denier anti-pill type polyethylene terephthalate staple was used for the weft.
51 mm) is mixed with 80% by weight of cotton and 20% by weight of cotton, and the plain weave is woven into a plain weave structure and dyed to a pale blue. Calendered fabric with a basis weight of about 105 g / m ² is used. The futon side was sewn using a triple strand of filament yarn. The type and handling label uses polyester non-woven fabric, 0.8 kg of the cotton stuffed cotton is stuffed in the side cloth, and the stitches are quilting stitches 6.5 co / in, and the quilting interval is in the width and length directions. In each case, the interval was about 15 cm to make a comforter.

During the production of the stuffed cotton fiber of the above-mentioned comforter,
Table 1 shows the characteristics of the comforter obtained by changing only the silicone resin adhesion amount (owf) per fiber weight.

The comforters of Examples 1 and 2 contain 30% by weight of stuffed cotton to which a water-repellent resin having a water absorption height of 0 to 4.5 mm is added, and therefore, the quilt is excellent in drainage and There was little shrinkage due to washing with water, little change in appearance and touch, and a good comforter with excellent deodorant properties.

On the other hand, in Comparative Examples 1 to 3, there was little shrinkage, change in appearance and change in feeling due to washing and washing of the comforter and good deodorant property, but the water-repellent resin contained in the stuffed cotton was provided. Water absorption height of fiber is 5.2 to 24.8 mm
Therefore, the water content as a comforter was high and the drainage was inferior.

[0044]

[Table 1]

[0045]

INDUSTRIAL APPLICABILITY According to the present invention, rainwater, drinking water, juice, urine, etc. have high drainability when wet or washed with water, and the drying speed is high, and there is little change in appearance and texture due to washing, and deodorant property. An excellent packed object can be obtained.

[Brief description of drawings]

FIG. 1 is a schematic view showing an example in which the padded object of the present invention is applied to a comforter.

FIG. 2 is a schematic view showing an example in which the padded object of the present invention is applied to a cushion.

[Explanation of symbols]

1: quilting sewing thread 2: Japanese binding thread A _{1 to} A _i : binding interval B _{1 to} A _i : binding interval

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location C09K 3/18 104 C09K 3/18 104

Claims (12)

[Claims] 1. A stuffed article in which each of the stuffed cotton and the side material contains a polyester fiber, and has a stuffed cotton having a water absorption height of 5 mm or less measured by the method described in the text and having deodorant properties. A stuffing object characterized by containing stuffed cotton. 2. The batting object according to claim 1, wherein the batting having a water absorption height of 5 mm or less is a batting treated with a water-repellent resin. 3. The filling object according to claim 1, wherein the water-repellent resin processing is made of a silicone resin or a fluorine resin. 4. The stuffed article according to claim 1, wherein the stuffed cotton having a water absorption height of 5 mm or less is contained in an amount of 15% by weight or more based on the weight of the stuffed cotton. 5. The stuffed article according to claim 1, wherein the stuffed article has a water content of 270% or less measured by the method described in the text. 6. The stuffed object according to claim 1, wherein the side material has a polyester fiber ratio of 25% by weight or more with respect to the weight of the side material. 7. The stuffed object according to claim 1, wherein the stuffed object has a water-washing shrinkage ratio of 5% or less measured by the method described in the text. 8. The stuffed article according to claim 1, wherein the stuffed cotton has a fineness of 0.5 to 30 denier and a fiber length of 10 to 100 mm. 9. The wadding is a short fiber having a three-dimensional crimp generated by asymmetric cooling and has at least 3 ridges / 25 m.
9. The stuffed object according to any one of claims 1 to 8, which has a crimp number of m and a crimp degree of at least 5%. 10. The stuffed object according to claim 1, wherein the side material is a mixture of polyester fiber and cotton. 11. The stuffed article according to claim 1, wherein the odor eliminating fibers account for 40% by weight or more of the stuffed cotton. 12. The deodorant fiber contains 3.2 × 10 ⁻⁴ gram equivalents / gram fiber or more of free carboxyl groups by graft polymerization, according to any one of claims 1 to 11. Stuffed object described in crab.