JP2002013048A - Composite product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composite product having uninjured special feeling and glossiness of stretched fur fibers and excellent in dimensional stability when washed. SOLUTION: This composite product is constituted of a polytrimethylene terephthalate fiber and a stretched fur fiber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mixed product which does not impair the unique texture and glossiness of drawn animal hair fibers and has excellent dimensional stability in washing.

[0002]

2. Description of the Related Art Animal hair fibers have an excellent texture and are excellent in heat retention, but they are natural fibers but their count is limited. In particular, animal hair fibers having a fine count of 80 or more had extremely low hair production and were very expensive. Tokuhei Hei 5-
Japanese Patent No. 500989 and Japanese Patent Application Laid-Open No. 7-3556 disclose that animal hair fibers are stretched and elongated to be extremely soft and drapable, in addition to the many features that animal hair fibers have naturally. There is disclosed a technique for obtaining a drawn animal hair fiber which has excellent glossiness, has an elegant luster, and can be made fine. However, such mixed products made of stretched animal hair fibers cannot be washed at home because the shrinkage of the fabric is large due to washing, and polyester with excellent dimensional stability is used for the purpose of suppressing shrinkage during washing. Combination was attempted, but not only the dimensional stability in washing was insufficient, but also the texture became hard.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a mixed product having excellent dimensional stability in washing without impairing the unique texture and glossiness of drawn animal hair fibers. is there.

[0004]

The inventors of the present invention have conducted intensive studies on the above-mentioned problems, and as a result, a mixed article composed of polytrimethylene terephthalate fibers and drawn animal hair fibers can solve the above-mentioned problems. The inventors have found that the present invention has been achieved. Hereinafter, the present invention will be described in detail. In the present invention, the polytrimethylene terephthalate fiber refers to a polyester fiber having a trimethylene terephthalate unit as a main repeating unit, and the trimethylene terephthalate unit has about 50 mol% or more, preferably 70 mol% or more, and more preferably 80 mol% or more. %, More preferably 90 mol% or more. Therefore, the total amount of the other acid component and / or glycol component as the third component is within a range of about 50 mol% or less, preferably 30 mol% or less, further 20 mol% or less, and more preferably 10 mol% or less. Polytrimethylene terephthalate contained.

[0005] Polytrimethylene terephthalate is produced by condensing terephthalic acid or a functional derivative thereof with trimethylene glycol or a functional derivative thereof under suitable reaction conditions in the presence of a catalyst. In this production process, an appropriate one or two or more third components may be added to form a copolymerized polyester, or
Polyesters other than polytrimethylene terephthalate such as polyethylene terephthalate, nylon, and polytrimethylene terephthalate may be separately produced and then blended or composite-spun (sheath core, side-by-side, etc.).

The third components to be added include aliphatic dicarboxylic acids (oxalic acid, adipic acid, etc.), alicyclic dicarboxylic acids (cyclohexane dicarboxylic acid, etc.), and aromatic dicarboxylic acids (isophthalic acid, sodium sulfoisophthalic acid, etc.). ), Aliphatic glycols (ethylene glycol, 1,2
-Propylene glycol, tetramethylene glycol, etc.), alicyclic glycols (cyclohexane dimethanol, etc.), aliphatic glycols containing aromatics (1,4-bis (β-hydroxyethoxy) benzene, etc.), polyether glycols (polyethylene glycol) , Polypropylene glycol and the like), aliphatic oxycarboxylic acids (such as ω-oxycaproic acid), and aromatic oxycarboxylic acids (such as P-oxybenzoic acid). Compounds having one or more ester-forming functional groups (such as benzoic acid or glycerin) can also be used as long as the polymer is substantially linear. Further, matting agents such as titanium dioxide, stabilizers such as phosphoric acid, bluing agents such as cobalt acetate, ultraviolet absorbers such as hydroxybenzophenone derivatives, crystallization nucleating agents such as talc, lubricating agents such as aerosil, hindered phenols An antioxidant such as a derivative, a flame retardant, an antistatic agent, a pigment, a fluorescent brightener, an infrared absorber, an antifoaming agent, and the like may be contained.

In the present invention, the polytrimethylene terephthalate fiber is spun at a take-up speed of about 1500 m / min to obtain an undrawn yarn, and then it is stretched at a rate of about 2 to 3.5 times. Any of a direct drawing method (spin draw method) directly connected to the drawing and twisting step, a high-speed spinning method (spin take-up method) with a winding speed of 5,000 m / min or more, a method of drawing once after cooling in a water bath after spinning, and the like. May be adopted. Further, the form of the fiber may be a long fiber or a short fiber, may be uniform in the length direction or may be thick and thin, and may be round, triangular, L-shaped, T-shaped, Y-shaped in cross-sectional shape.
It may be a polygonal type such as a type, a W type, an eight type, a flat type, a dog bone type, etc., a multi type, a hollow type or an irregular type.

[0008] Further, as the form of the fiber, raw yarn, twisted yarn,
False twisted yarns (including drawn false twisted yarns of POY), those twisted into false twisted yarns, and pretwisted false twisted yarns (for example, 600 to 500 in the S or Z direction)
1000T / M twisted, 3000 to 40 in Z or S direction
00T / M false twisted yarns), spun yarns such as air-spun yarns, ring spun yarns, open-end spun yarns, multifilament raw yarns (including ultrafine yarns), and mixed fiber yarns.
Especially when twisting false twisted yarn, twisting in the opposite direction to the false twist direction (twisting S or Z direction false twisted yarn in Z or S direction) and mixing In addition to the effects of the present invention, stretchability (ease of stretching and ease of recovery) is improved.

The polytrimethylene terephthalate fiber used in the present invention has a breaking strength of 2.2 to 4.0 cN /
dtex, elongation at break is 30 to 55%, and initial modulus is 14
２４24 cN / dtex, elastic recovery rate at 20% elongation 60
~ 95%, and the constituent fineness is 20 ~ 55.
0 dtex, and particularly preferably 30 to 220 dtex. The fineness of the single yarn is preferably 0.1 to 12 dtex, and more preferably 0.5 to 5 dtex, since the texture of the drawn animal hair fiber is not impaired. The stretched animal hair fiber of the present invention is an animal hair fiber that has been stretched, has a smaller diameter than the original, has a longer fiber length than the original, and has been set in the stretched state. The animal hair fiber having a diameter of 19 μm is drawn by about 40 to 50%, and each fiber is thinned by about 3 to 3.5 μm. Animal hair fibers include wool, alpaca, mohair, angora, camel, cashmere and the like.

As a method for producing a drawn animal hair fiber,
For example, a sliver of animal hair fiber as disclosed in JP-A-7-3556 is wetted with water or the like, stretched 1.5 to 2.0 times with a stretching roller, and stretched to 60 to 1 in a stretched state.
Method of heating and setting at 00 ° C
No. 100 false twist on a sliver as disclosed in
To 300 T / m, stretching and heating setting. Specific examples of the drawn animal hair fibers include, for example, a registered trademark “CORRIEL” manufactured by Kurashiki Spinning Co., Ltd.
"ANA" and a registered trademark "OPTIM" manufactured by CSIRO. In addition, the fineness may be arbitrarily used in the range of 20 to 170.

In the present invention, it is important that the mixed product is composed of a polytrimethylene terephthalate fiber and a drawn animal hair fiber, and the composition ratio of the polytrimethylene terephthalate fiber is 20 to 80% by weight. Preferably, it is 25 to 60%, and the constituent ratio of the drawn animal hair fiber is 80 to 20% by weight, preferably 75 to 40%. If the amount of the polytrimethylene terephthalate fiber exceeds 80% by weight or the amount of the drawn animal hair fiber is less than 20% by weight, the texture and glossiness of the drawn animal hair fiber cannot be obtained. In addition, when the polytrimethylene terephthalate fiber is 20
%, Or when the stretched animal hair fiber exceeds 80% by weight, the dimensional stability becomes poor. Animal hair that has not been stretched (wool) within a range that does not impair the effects of the present invention,
Natural fibers typified by cotton, hemp, silk, etc., semi-synthetic fibers typified by rayon, cupra, acetate, etc., and synthetic fibers typified by polyethylene terephthalate, polyamide and acrylic may be contained up to 30% by weight. Absent.

[0012] The mixed article of the present invention includes all of the both mixed by yarn and / or fabric by a known mixing means. For example, a polytrimethylene terephthalate fiber and a drawn animal hair fiber are used. There are woven fabrics (taffeta, twill, satin and various changing structures) and knitted fabrics (warp knitting, circular knitting, weft knitting) mixed and knitted on the above, and polytrimethylene terephthalate fiber and stretched animal hair fiber. There are composite yarns mixed by mixing means such as twisting, covering, false twisting (including elongation difference false twisting), fluid jet processing, and spinning twisting. When the composite yarn has a sheath-core structure such as covering, elongation difference false twisting, and fluid jetting, it is preferable to use a polytrimethylene terephthalate fiber as the core yarn because stretchability is easily obtained.

In the following, a circular knitting will be described as an example. Polytrimethylene terephthalate fibers and drawn animal hair fibers may be fed individually or aligned at each yarn feeder of a knitting machine to perform knitting. Alternatively, a composite yarn of both yarns may be used for all or a part of the yarn feeder. Use a single knitting machine, a double knitting machine, etc. for the knitting machine.
The circular knitted fabric may be created by appropriately selecting 40 GG and the number of yarn feeders from 60 to 90.

[0014] The method of dyeing the mixed article of the present invention includes:
Generally, a method of dyeing a composite knitted fabric of polyethylene terephthalate fiber and animal hair fiber may be employed. For example,
After scouring, dyeing, and drying the circular knitted fabric in a cylindrical shape,
The finishing process may be performed after opening the fabric, or after the greige machine is scoured, the fabric may be opened, pre-set, and then dyeing and finishing may be performed. The dyeing of the polytrimethylene terephthalate fiber is generally performed, and a method of dyeing the polyethylene terephthalate fiber using a disperse dye may be employed. Dyeing temperature is 90 ° C to 130 ° C, time is 15 minutes to 12
Although it is sufficient to be within a range of 0 minutes, polytrimethylene terephthalate fiber has a low glass transition point, and therefore has a temperature of 90 ° C to 120 ° C.
Even when dyeing at such a low temperature, excellent color developability can be obtained, so that a change in texture of animal hair fibers having low heat resistance can be suppressed.

The stretched animal hair fiber may be dyed with an ordinary dye such as an acid dye, a gold-containing dye, a reactive dye, or a chromium dye, and may be dyed simultaneously with, before, or after the polytrimethylene terephthalate fiber. There is no problem with dyeing. In the finishing process, as long as the object of the present invention is not impaired, finishing processes such as resin processing, flexible processing, water absorbing processing, antistatic processing, antibacterial processing, water repellent processing and enzyme treatment which are usually used for textile processing are not included. Applicable. The final set temperature for finally controlling the property of the mixed product may be 140 ° C to 190 ° C, and 150 to 170 ° C for controlling the property and suppressing a change in texture.
It is preferable to carry out in.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be specifically described with reference to examples and the like, but the present invention is not limited to only these examples. The evaluation in Examples and Comparative Examples was measured by the following method. (1) Measurement of ηsp / c ηsp / c is obtained by dissolving a polymer in o-chlorophenol solvent at 90 ° C. at a concentration of 1 g / deciliter,
The obtained solution was transferred to an Ostwald viscosity tube, measured at 35 ° C., and calculated by the following equation. ηsp / c = [(T / T0) -1] / C T: Fall time of sample solution (second) T0: Fall time of solvent (second) C: Solution concentration (g / deciliter)

(2) Evaluation of strength and elongation characteristics A sample length of 20 using Tensilon manufactured by Toyo Baldwin Co., Ltd.
cm and a tensile speed of 20 cm / min.
N / dtex), elongation at break (%), initial elastic modulus (cN /
dtex) was measured. In addition, from the stress-strain curve, it is assumed that the value
The elongation at 8826 cN / dtex was measured. (3) Evaluation of elastic recovery The fiber was placed at 0.0294 cN / d at a distance between chucks of 20 cm.
tex with an initial load, attached to a tensile tester, and stretched at an elongation rate of 20 cm / min to an elongation rate of 20%.
Let stand for minutes. Thereafter, the material is contracted again at the same speed, and a stress-strain curve is drawn. During shrinkage, the stress is 0.0294 cN /
The elongation at dtex is defined as residual elongation (A). The elastic recovery was determined according to the following equation. Elastic recovery at 20% elongation = [(20−A) / 20] ×
100 (%)

(4) Texture and appearance A sensory test was conducted by touch by 10 inspectors engaged in fiber research, and the following ranking was performed. ：: Feel unique texture and glossiness of the drawn animal hair fiber. Δ: Feel and texture unique to slightly drawn animal hair fibers. ×: The texture and glossiness unique to the stretched animal hair fiber are hardly felt. (5) Dimensional stability According to JIS-L-1018, method D of shrinkage measurement,
A test piece depicting a square of 20 cm × 20 cm was subjected to a soap liquid immersion method, and after measuring the dimensions in the course direction and the well direction, the area shrinkage was calculated by the following equation. Area shrinkage (%): [(40000-(dimension in course direction after treatment (mm) x dimension in well direction (mm))] / 40
000] × 100 ○: Area shrinkage of 0 to 8.0% Δ: Area shrinkage of more than 8.0% and less than 10%, or −
2% or more and less than 0% ×: Area shrinkage is less than -2% or more than 10%

[0019]

Example 1 A polytrimethylene terephthalate chip having ηsp / c = 0.8 was spun at a spinning temperature of 265 ° C. and a spinning speed of 12.
It is spun at 00 m / min to obtain an undrawn yarn, then twisted at a hot roll temperature of 60 ° C., a hot plate temperature of 140 ° C., a draw ratio of 3 and a drawing speed of 800 m / min to obtain 84 dtex.
/ 24f polytrimethylene terephthalate multifilament yarn was obtained. The physical properties of the obtained yarn are strength 3.
9 cN / dtex, elongation 45%, elastic modulus 22 cN / dt
ex, the elastic recovery rate at 20% elongation was 87%. The obtained 84dtex / 24f polytrimethylene terephthalate multifilament yarn and No. 60 drawn wool (trade name "CORRIELANA") manufactured by Kurashiki Spinning Co., Ltd.
A single knitting machine of 8GG was inserted into the yarn feeder by plating so that the surface became stretched wool, and a knitted fabric of 31 courses and 36 wells of reversible sheeting was prepared.

The knitted fabric was scoured in a cylindrical shape at 90 ° C. for 20 minutes, and dyed with a disperse dye and a gold-containing acid dye at 120 ° C. for 30 minutes using a circular dyeing machine. After dyeing, washing with water,
After performing soaping, drying, and opening, the final setting was performed with a pin tenter at a width of 160 ° C. for 1 minute to obtain a knitted fabric of 43 courses / 44 wells. The results of the evaluation of the fabric properties of the obtained knit are shown in Table 1. As a result, it was found that the stretched wool had a glossiness and a feeling, and was excellent in dimensional stability.

[0021]

Comparative Example 1 An 84 dtex / 24f polyethylene terephthalate yarn (manufactured by Asahi Kasei Kogyo Co., Ltd., strength 3.9 cN / d) was used instead of the 84 dtex / 24f polytrimethylene terephthalate multifilament yarn of Example 1.
tex, elongation 35%, elastic modulus 97cN / dtex, 20
% Elastic recovery at 25% elongation) was obtained in the same manner as in Example 1. The results of evaluation of the fabric properties of the obtained knit are shown in Table 1. As a result, the glossiness and feel of the stretched wool were impaired, and the dimensional stability was poor.

[0022]

[Comparative Example 2] Instead of stretched wool No. 60 of Example 1, 1
A knitted fabric was obtained in the same manner except that the fiber was changed to a 67 dtex / 48f polytrimethylene terephthalate multifilament yarn and dyed only with a disperse dye. The results of the evaluation of the fabric properties of the obtained knit are shown in Table 1. The dimensional stability is excellent, but since the polytrimethylene terephthalate fiber is 100%, naturally, the glossiness of the stretched wool,
There was no feeling.

[0023]

Comparative Example 3 A knitted fabric was obtained in the same manner as in Example 1, except that the stretched wool No. 120 was used instead of the 84dtex / 24f polytrimethylene terephthalate multifilament raw yarn and dyed only with a gold-containing dye. The results of the evaluation of the fabric properties of the obtained knit are shown in Table 1. As a result, the stretched wool had a glossiness and a feeling, but was inferior in dimensional stability.

[0024]

Example 2 A polytrimethylene terephthalate chip with ηsp / c = 0.8 was spun at a spinning temperature of 265 ° C. and a spinning speed of 12
It is spun at 00 m / min to obtain an undrawn yarn, then twisted at a hot roll temperature of 60 ° C., a hot plate temperature of 140 ° C., a draw ratio of 3 and a drawing speed of 800 m / min to obtain 84 dtex.
Thus, a polytrimethylene terephthalate multifilament yarn having a size of / 12f was obtained. The physical properties of the obtained yarn are 3.8 strength.
cN / dtex, elongation 43%, elasticity 23cN / dte
x, the elastic recovery at 20% elongation was 88%. The obtained 84dtex / 12f polytrimethylene terephthalate multifilament was used with a pin false twist machine IVF338 manufactured by Ishikawa Seisakusho Co., Ltd., at a yarn speed of 190 m / min, a false twist number of 2280 T / m, and a false twisting temperature of 170 ° C. False twisting was performed under the conditions of the first feed 0.0% and the TU feed 4.1%.

The obtained false-twisted polytrimethylene terephthalate multifilament fiber and No. 48 drawn wool (trade name “OPTIM”) manufactured by CSIRO were used.
A 4GG single knitting machine was inserted into the yarn feeder by plating so that the surface became stretched wool, thereby producing a 25-course, 26-well reversible sheeting knitted fabric. This knit was dyed, soaped and final set in the same manner as in Example 1 to obtain a 31-course / 33-well knit.
The results of the evaluation of the fabric properties of the obtained knit are shown in Table 1. As a result, it was found that the stretched wool had a glossiness and a feeling, and was excellent in dimensional stability.

[0026]

Example 3 84 dtex / 12f polytrimethylene terephthalate multifilament yarn of Example 2 and drawn wool manufactured by Kurashiki Spinning Co., Ltd. (registered trademark "CORRIELA")
NA ”) No. 60 with 18GG single jacquard knitting machine, 20 sheets,
A one-well mesh-like knit was prepared. This knit was dyed, soaped and final set in the same manner as in Example 1 to obtain a knit of 22 courses / 33 wells. The results of the evaluation of the fabric properties of the obtained knit are shown in Table 1. As a result, it was found that the stretched wool had a glossiness and a feeling, and was excellent in dimensional stability.

[0027]

[Table 1]

[0028]

The mixed article of the present invention has excellent dimensional stability in washing without impairing the unique texture and glossiness of the drawn animal hair fibers.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor, Otohito 1-11-7, Hatcho-nawate-cho, Takatsuki-shi, Osaka Asahi Kasei Kogyo Co., Ltd. (72) Inventor Takuro Tsuji F-term (reference) 529-8 Kumae, Wakayama-shi, Wakayama 4L002 AA03 AA07 AB01 AB02 AB04 BA01 DA01 DA04 EA00 4L035 EE17 EE20 FF08 FF10 4L036 MA05 MA10 MA33 MA35 MA39 PA01 PA03 PA06 PA21 PA33 PA46 UA01 UA06

Claims (1)

[Claims] 1. A mixed product comprising polytrimethylene terephthalate fiber and drawn animal hair fiber.