JPS58200767A - Padding - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention The present invention has excellent functionality such as sweat absorption, binding properties, water release properties, birth retention properties, moisturizing properties, drape properties, etc., and also has a silk lighter texture with a warm feeling. This product relates to padded cotton for futons, quilting products, etc., which have multiple functions such as holding.

Traditionally, cotton and wool have been used as fillers made of natural materials.

Feathers, cotton, etc. are used, but these are bulky and
Drapability, bulk retention, sweat absorption, @ daytime.

Each has advantages and disadvantages in terms of functionality such as heat retention, thermal sensation, and texture, and there is no padded cotton that satisfies all functionality. , the current situation is to take advantage of its characteristics. Moreover, these natural cotton pads have recently been
FL<It has become expensive. For this reason, padded cotton made from inexpensive and useful synthetic fiber materials such as polyester fiber and polypropylene fiber began to be used.In the beginning, synthetic fiber materials had superior bulk compared to natural fiber materials. However, its functionality as a padding cotton was poor and poor quality, so it was changed to a fine denier and the material was modified.

Efforts have been made to obtain cotton inserts with superior functionality and texture through surface modification, etc., such as sweat absorption, wicking and moisture retention, but there are still only a few materials with multifunctionality that meet sufficient consumption performance. No cotton filling was obtained.

This is the result of intensive research by the present inventors in order to obtain a multifunctional filling cotton that satisfies consumption performance and exceeds that of natural fibers.

The present invention was achieved based on the discovery that fibers containing natural protein in their components are effective in imparting multifunctionality.
Examples of protein components include various animal and plant proteins such as milk casein, yeast protein, zeftin, corn protein, and soybean protein.

The acrylonitrile-based graft copolymer containing a protein component in the present invention refers to a protein that is used as a base polymer, and acrylonitrile or a copolymerizable vinyl compound mainly composed of acrylonitrile is grafted and electropolymerized in the presence of the protein. A copolymer that has been regenerated. The protein component may be contained in any proportion, but it is preferable that the proportion of the protein component in the total amount is 1 to 50 seconds. If the protein component contained in the cotton padding of the present invention increases, the toughness of the fibers will decrease and the high retention property will decrease, so it is preferable to keep the protein component at 50 or less.
Functionality such as water absorption and heat retention decreases, and i! The protein component should be 11 or more, preferably 10, since it will impair the shine and texture.
% or more, especially 20 inches or more.

The batting cotton of the present invention is produced by producing a graft copolymer by the method exemplified in Japanese Patent Publication No. 38-9431, etc., making it into fibers, aligning the fibers, and crimping them by a known method such as pressing and talin bar. It can be obtained as fibers or short fibers can be obtained by cutting the fibers into appropriate lengths depending on the backbone. Further, long fibers or short fibers may be used as the nonwoven fabric.

Although crimp is added to increase bulk.

Although it is not preferable to make it too high due to the relationship with high retention and drapability, it is desirable to reduce the weight by lowering the basis weight by the amount of height compared to the puffiness of other W&N materials. Therefore, it is preferable to make the bulkiness as high as possible in consideration of the single-turn contraction.

If the single fiber denier of the cotton padding of the present invention becomes too thick, it will have poor drapability, heat retention, water absorption, and water release properties.

6. Because functionality such as absorbency decreases and the texture is impaired.
The denier is preferably 0.01 denier or less, and more preferably the Vi4 denier or more is 1"0.01 denier or more.The obtained fibers are opened to form a web and fill cotton is formed. .

Next, the characteristics of the cotton filling according to the present invention will be explained.

The cotton wadding of the present invention contains a protein component, so although its absorbency is slightly inferior to that of natural cotton, it is significantly better than conventional synthetic fiber cotton. Sweat absorption (water absorption)
Although it is slightly inferior to oil-free cotton, it is significantly superior to other natural materials and synthetic fibers, and the water release property, which is a measure of the ability to release absorbed water, is better than natural materials. It is significantly superior to cotton and synthetic fiber materials. In addition, heat retention, which is the most important function of futons, is the same as down, cotton (#e), wool, and fine danyl polyester fiber filling, which have the best heat retention properties.
m ability is shown. In addition, the drapability, which is an important function for a comforter, is almost the same as cotton (silk), which has traditionally had the best drape ability, and is significantly superior to other natural materials and synthetic fiber materials. There is. General K.

However, as bulkiness improves, drapeability decreases.

Even though it has the same bulk and high performance as cotton and wool, the padded cotton of the present invention has excellent drapability1.

The drapability of the fibers is improved when the fibers are made of fine anneal, but the cotton wadding of the present invention is superior to the wadding of fine anneal polyester fibers.

Although the high retention properties of the cotton wadding of the present invention are inferior to that of feathers, it is superior to other natural material wadding and synthetic fiber wadding. The bulkiness and high retention properties of feathers are due to the special mechanism of feathers, and when comparing spread web-shaped padded cotton, the bulkiness generally decreases.

Further, it is said that the higher the finder annealing, the higher the retention property. For this reason, with Findanil,
Of course, cotton with low bulkiness has excellent V'i number retention, but even if it has a thicker denier than cotton cotton and has high bulkiness, the filling cotton of the present invention is different from cotton cotton. Shows the same excellent high retention properties.

In addition, this invention is filled with cotton V! It is an excellent multi-functional padded cotton that is soft to the touch and has a V-Lucreita texture, giving you the warmth unique to protein-based materials.

The properties described below are numerically described in Example 1 of the present invention and a stable spread web of cotton (Indian cotton) exemplified as a comparative example (Comparative Example 3).

Stable spread web of wool (Comparative Example 4), cotton (silk)
tow spread web (Comparative Example 5), feather with a down to feather ratio of 85:15 (Comparative Example 6), acrylic M fiber (Comparative Example 7), fine denier polyester fiber (Comparative Example 1), and bulky This can also be clearly demonstrated by Table 1, which describes the characteristics of each of the polyester fibers (Comparative Example 2).

Examples will be described below.

In addition, the functionality evaluation of the padded cotton in the dormitory example was determined by the following method.

■ Bulk retention A zabuton is made by stuffing 360g of spread web of 39m x 40 (Ml) (the feathers are blown in) into a cotton satin side material with a length x width x height of 30 o IIX 40 x 10 t1n. When used repeatedly for 8 hours every day for 30 days, from o, 5y/Initial thickness under LIA load) ho (CIll) and thickness h r (m) after 30 days of use, hi ( %) = (b+/ha
)X100.

Note that the feathers were heat-backed after use and the thickness was measured.

■ Three samples were made by cutting the drapable spread web into width 20c111, length 501111, and basis weight 0.04r/dK.
According to the JIS-L-1004 cantilever method, the web is extruded onto a sloped surface of 45° from the horizontal surface, and the length l of the bent end of the web in contact with the plate having a slope of 450 from the horizontal surface is determined to determine the drapability measure value. And so.

■Sucking water After scouring and removing oils etc. that adhere to the cotton surface.

Wat approx. 1. Cut Of into a rod with a diameter of 10 g and a length of 1001111, weigh it accurately, and place it in a glass tube with an inner diameter of 10 M.
・Fill the container, dip the bottom 10 cm in distilled water at 20°C, take it out after 5 minutes, reweigh it, and calculate the amount of water absorbed using the linear formula.

It was made into a sweat-absorbing tape measure.

× 100 ■ Water spray properties A test tube with an inner diameter of 1.6 cIR and a length of 101 mm was placed in a container with a hole of diameter 0.5 LM at the bottom. Oils and other substances adhering to the cotton surface were scoured and air-dried. 2v height 6.5
Fill the test tube uniformly so that the bottom of the test tube is 1.5 cnl in a container with an inner diameter of 2.5 cnl and containing about 30 cc of distilled water.
5. Place a rubber plug between the water container and the test tube so that it is immersed in crn water. After allowing it to stand still for a minute, weigh the entire sample and container.

Next, this was placed in a thermostatic chamber at 40° C.±2° C. and 45 soil 2 SRH for 24 hours, and then the whole including the sample and container was weighed again.

■Hygroscopic room 120℃ related leech degree 95% and chamber M20℃ related separation degree 50
Approximately 1Of of the opened cotton was placed in a constant temperature room for 8 hours, then accurately weighed in a weighing bottle whose constant weight had been determined in advance, and then dried in an HP vacuum dryer at 60°C and a vacuum degree of 0.1 am. The absolute dry weight was determined, and the amount of suction was determined using the following formula, which was used as a leech measure.

@M rate - (Moisture rate under 95%RH - Moisture rate under 50%RH) (%) × Width - Cut the spread web into 29m x 20m, k-pinch to give a basis weight of 0.06r/cIA (the feathers are spread-shaped and packed) according to JIS-L-200.
Using method 1, the heat retention rate (rice cake) was determined under the condition of sweetfish temperature of 20℃ and leech temperature of 65%.

(Z) 11. 20 people were allowed to touch the spread web for 30 seconds, and the following evaluation criteria were used: ◎ felt the same warmth as cotton, but felt warmer than O1 cotton, Δ felt slightly colder than cotton, and × felt much colder than cotton. Ranking was done by sensory evaluation.

■ Width: 151 mm. Length 20mm, basis weight 0.067
Create three samples cut at r/-, 0.2
y/crA, 0.6 y/crA)lt-2.5
? / crAdJj Rev. Measuring the volume per 1 volt (d/f) of the web after 5 minutes of release (Vo, 21 Vo,
6. Vl5 was used as a measure of bulkiness (average value of each n3 pieces).

In addition, since one feather does not form a web, it is placed inside a gauze side fabric with a width of 151 cm, a length of 20 inches, and a height of 20 cm, with a fabric weight of 0.
．． The specific volume was determined by blowing feathers with a value of 067t/lyA and using the same measurement as the height, excluding the thickness of the gauze.

Example 1 10wtjk% milk casein/acrylonitrile = 2/8 in a 60% zinc chloride aqueous solution and 10% as a polymerization catalyst
Light repellent color opaque viscosity obtained by adding ammonium persulfate and 10% sodium sulfite and polymerizing for 60 minutes at room temperature! 14 liquid to 5
Spun into zinc chloride aqueous solution at 37% °C, washed with water after forming 1
Next, a drawn yarn of 2 deniers and a white glossy single yarn was obtained by stretching the yarn 7 times in water at 100°C.

The drawn yarn was drawn to 100,000 deniers, crimped with a pressing talin bar, and then cut into 64 square pieces. The properties of the blackened fiber obtained are shown in Table 1.

The obtained staples were opened with a roller card to make a carded web, and the S& property and thermal sensation were evaluated in Table 1.
silk) and feathers (grain/feather: 85/15)
, Phi is also shown in Table 1 as a polyester batting.

As can be seen from Table 1, the filling cotton of the present invention is:

Bulky properties, bulk retention, drapability, water absorption, and water release properties.

All functions such as leech absorption and heat retention are excellent, and it has a soft and cotton-like texture, and feels damp to the touch (compared to natural material padded cotton or polyester padded cotton). Comparative Example 1〇 Intrinsic viscosity (tetrachloroethane/phenol).

6/4. Polyethylene terephthalate of 0.64 (measured at 30℃) was melt-spun and drawn at 285℃.The drawn yarn of 7 denier was pulled together and made into 100,000 denier using a push crimper. Table 1 shows the characteristics of the single fibers obtained by setting the fibers in a drying machine at 160° C. for 5 minutes and cutting them into 32 squares.

The obtained stable was opened with a card and the performance of the obtained web was evaluated. The results are shown in Table 1.

Finder Neal Net Vl made of polyester.

It has a soft texture and has the same functionality such as bulk retention, drapability, and heat retention, but perhaps because polyester is used, the cotton wadding of the present invention has better sweat absorption, absorbency, and warm touch. It was significantly inferior.

Although drapability was improved by fine denier, it was inferior to the cotton padding of the present invention.

*The round rolls and fibers obtained in source side 1 were opened with a roller card, and the carded web was stacked to have a basis weight of 1609/llr and needle punched at a needle density of 111,100 pieces/- to form a nonwoven fabric. . The thickness of the nonwoven fabric is 4.8-,
The drapability was 10.5 crR (vertical) and 6.5 m (horizontal), and the drape was excellent.

In addition, the clo value (ASTM D
151B) Ho, 84, c per thickness (cPR)
lo value 1.75 clo/m and feathers (1, Oclo 7
cm). This non-woven fabric was sewn to create quilted clothing products and worn.1
It was comfortable to wear, had good drape, and was very warm.

Similar, l clo: Temperature 21℃, quality 50% or less.

The insulation required to maintain the skin humidity of a person sitting on a chair at an average of 33 degrees Celsius in a room with a wind speed of 5 LM per second.

l clo = 0.18℃Wthr/-Patent Applicant
Toyobo Co., Ltd.

Claims (3)

[Claims] (1) A padded cotton characterized by being made of an aggregate of am made of an acrylonitrile-based Gofuft copolymer containing a protein component. (2) The padded cotton according to claim 1, which is a fiber containing 1 to 50% of a protein component. (3) The sub-filled cotton according to claim 1, wherein the single fiber denier is 6 denier or less and 0.01 denier or more.