CN-117813427-B - Fiber fabric and method for dyeing fiber fabric

Abstract

By setting the rigid amorphous fraction of the synthetic fiber to 55% or less, a polyester fiber fabric obtained using a synthetic fiber made of polyethylene terephthalate, which is a fiber fabric having a low dyeing temperature and excellent dyeing fastness and having excellent versatility, can be obtained.

Inventors

• TAKAGI YASUHARU
• Jin Fashunzheng

Assignees

• 小松美特料株式会社

Dates

Publication Date

20260512

Application Date

20220606

Priority Date

20210830

Claims (6)

1. 1. A fiber fabric comprising a synthetic fiber having a rigid amorphous fraction of 55% or less, wherein the synthetic fiber is made of polyethylene terephthalate, the synthetic fiber has a crystallinity of 20% or more and 45% or less, and the synthetic fiber has a glass transition temperature of 110 ℃ or more and 122 ℃ or less.
2. 2. The fiber fabric according to claim 1, wherein the synthetic fiber has an orientation degree of 80% or less.
3. 3. The fiber fabric according to claim 1, wherein the fiber fabric is dyed with a disperse dye, The color fastness in the 3 rd exposure method of JIS L0842 to ultraviolet carbon arc light is above grade 3, The dyeing fastness in the dyeing fastness test A method A-2 of JIS L0844 to washing is more than 3 levels of discoloration and fading and more than 3 levels of pollution, The color fastness in the method of A-1, which is a dry cleaning method according to JIS L0860, is a discoloration and fading grade of 4 or more and a staining grade of 3 or more.
4. 4. A fiber fabric according to any one of claim 1 to 3, wherein after heating for 1 minute and heating for 3 seconds by ignition according to the 45 DEG microcombustor method, which is the method A-1 for testing the combustibility of a fiber product according to JIS L1091, the afterflame is 3 seconds or less, the ember is 5 seconds or less, and the carbonization area is 30cm 2 or less, In addition, the number of flame connection times in the D method, namely the coil method flame connection test is more than 3.
5. 5. A method for dyeing a fiber fabric, wherein the fiber fabric according to claim 1 is immersed in an aqueous dispersion containing a disperse dye, and dyeing is performed at a temperature of 120 ℃ or less.
6. 6. The method for dyeing a fiber fabric according to claim 5, wherein the aqueous dispersion contains a flame retardant.

Description

Fiber fabric and method for dyeing fiber fabric Technical Field The present invention relates to a fiber fabric containing synthetic fibers and a method for dyeing the fiber fabric. Background A polyester fiber fabric (hereinafter also referred to as "regular PET fiber fabric") obtained by forming a polyester fiber (hereinafter also referred to as "regular PET fiber") made of polyethylene terephthalate (hereinafter also referred to as "regular PET") obtained by polymerizing terephthalic acid and ethylene glycol into a sheet-like shape such as a woven fabric or a knitted fabric (hereinafter also referred to as "knitted fabric") is known. The conventional PET fiber has excellent strength and elongation, and has high heat resistance and versatility among synthetic fibers for clothing. Accordingly, conventional PET fibers are used for various products such as underwear, e.g., shirts and pants, middle coats, e.g., blouse and sweater, outer coats, e.g., overcoat and cold wear, and curtains and bed sheets. Conventionally, as a dyeing method for dyeing the conventional PET fiber or the conventional PET fiber fabric, a method has been known in which a fiber, yarn or fabric is immersed in an aqueous dispersion containing a disperse dye, and the aqueous dispersion is heat-treated at a high temperature of 130 ℃ to 135 ℃ to thereby drain (dye) the disperse dye from the molecular chain to the molecular chain of polyethylene terephthalate constituting the conventional PET fiber. The fiber fabric colored in this manner has excellent color fastness to light, washing, and the like. However, the conventional dyeing method requires a high-temperature heat treatment at 130 ℃ or higher at the time of dyeing, and thus requires a large amount of energy and time. Therefore, a technique of reducing the temperature at the time of dyeing by modifying a polyester resin has been proposed. For example, there are known fibers made of polyester which are obtained by using sulfoisophthalic acid or the like as a polymerization component of polyester, introducing a sulfonic acid group into the polyester to make it possible to dye with a cationic dye at normal pressure, or fibers made of polyester which are obtained by introducing a (poly) oxyalkylene group into the polyester to make it possible to dye with a disperse dye at low temperature, or a combination thereof (patent document 1). Prior art literature Patent literature Patent document 1 Japanese patent laid-open No. 5-9807 public report Disclosure of Invention Problems to be solved by the invention However, since the cationic dye and the polyester fiber having sulfonic acid groups introduced thereto are bonded by ionic bonds, there is a problem in that the yarn strength is weaker than that of the conventional PET fiber, although the dyeing fastness is excellent. In addition, the polyester fibers having (poly) oxyalkylene groups introduced therein have problems of low washing fastness and sublimation fastness. Further, since the production cost of the polyester resin is higher than that of the conventional PET, there is a problem that it is difficult to use the polyester resin in general use, regardless of whether the polyester fiber having a sulfonic acid group or the polyester fiber having a polyoxyalkylene group is introduced. The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a polyester fiber fabric or the like obtained by using synthetic fibers, particularly synthetic fibers made of polyethylene terephthalate, which is a fiber fabric having a low dyeing temperature and excellent dyeing fastness and having excellent versatility. Means for solving the problems In order to solve the above problems, one embodiment of the fiber fabric and the method for dyeing a fiber fabric according to the present invention has the following constitution. (1) One embodiment of the fiber fabric of the present invention contains a synthetic fiber having a rigid amorphous fraction of 55% or less. (2) In one embodiment of the fiber fabric of the present invention, the synthetic fiber may be made of polyethylene terephthalate. (3) In one embodiment of the fiber fabric of the present invention, the fiber fabric may be dyed with a disperse dye, and the color fastness in the 3 rd exposure method of JIS L0842 to ultraviolet carbon arc light is 3 or more, the color fastness in the test A-2 method of JIS L0844 to washing is 3 or more and the stain 3 or more, and the color fastness in the test A-1 method of JIS L0860 to dry cleaning is 4 or more and the stain 3 or more. (4) In one embodiment of the fiber fabric of the present invention, the fiber fabric may be heated for 3 seconds or less after being heated for 1 minute and ignited for 3 seconds in accordance with the method A-1 (45 DEG microcombustor method) for testing the combustibility of a fiber product according to JIS L1091, the afterflame is within 5 seconds, the carbonization are