Ink composition and method for producing dyed polyamide-based fiber

An ink composition, polyamide technology, applied in the direction of dyeing method, copying/marking method, ink, etc., to achieve the effects of excellent ejection stability, good fixation, and excellent storage stability

Inactive Publication Date: 2012-02-29
NIPPON KAYAKU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, it has not been known to contain water-soluble pigments such as acid dyes, have excellent storage stability, and satisfy each of the discharge performance at low to high drive frequencies and the discharge performance after standing that are required for industrial high-speed inkjet printers. inks, especially inkjet printing and dyeing inks for polyamide fibers

Method used

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  • Ink composition and method for producing dyed polyamide-based fiber
  • Ink composition and method for producing dyed polyamide-based fiber
  • Ink composition and method for producing dyed polyamide-based fiber

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0098] The water used for the preparation of the ink is usually preferably purified water.

[0099] Water or the like that has not been purified contains metal ions such as calcium ions and magnesium ions. Therefore, when such water or the like is used in the preparation of the ink composition, a trace amount of the metal ions or the like may be mixed into the ink composition. Therefore, it is preferable to use water with less inorganic impurities, such as distilled water or ion-exchanged water, to prepare the ink composition of the present invention.

[0100] Hereinafter, in this specification, for the sake of convenience, the inorganic salts mixed in the aforementioned dyes and the metal ions derived from the water used in the preparation of the aforementioned inks are collectively referred to as "inorganic impurities".

[0101] These inorganic impurities not only significantly deteriorate the solubility of the dye in the water-based ink solvent and the storage stability of ...

Embodiment 1～10

[0183] The components described in each of the following Examples were mixed and stirred for about 1 hour until the solid content was dissolved, whereby each ink composition was obtained. After that, it was filtered using a 0.45 μm membrane filter (trade name: cellulose acetate filter paper, manufactured by Advantec Toyo Co., Ltd.), thereby preparing an ink for the test. The preparation of the ink is respectively referred to as Examples 1-10.

[0184] In addition, each dye used as a pigment in each ink is manufactured by Nippon Kayaku Co., Ltd. The terms "acid", "direct" and "reactive" described immediately after "C.I." in each dye are known to mean "acid dye", "direct dye" and "reactive dye", respectively.

Embodiment 1

[0186] [Example 1 (yellow ink)]

[0187]

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Abstract

Disclosed is an aqueous ink composition for dyeing polyamide-based fibers which comprises: at least one kind of dye arbitrarily selected from dyes of three categories including acid dyes, direct dyes and reactive dyes; a compound which is represented by formula (1) [wherein X1, X2, X3 and X4 independently represent each a hydrogen atom or a methyl group; and j, k, m and n represent numbers, provided that the sum thereof is 4 to 40 inclusive] and has an average molecular weight of 340 to 2200; and ethylene glycol. Also disclosed is a method for producing a dyed polyamide-based fiber which comprises a step for applying said aqueous ink composition to a polyamide-based fiber by using an inkjet printer. Thus, it is possible to provide a dye ink for dyeing polyamide-based fibers, which has a high ejection stability in a printer equipped with an industrial inkjet head requiring a high-viscosity ink, has a high storage stability of the ink and shows a good fixability to fibers.

Description

technical field [0001] The present invention relates to an ink composition for dyeing polyamide fibers and a method for printing and dyeing polyamide fibers using the ink composition. Background technique [0002] Compared with screen printing, roller printing and rotary printing, fiber inkjet printing and dyeing using inkjet printers has the following advantages: no plate making process is required, and the process can be shortened; digital designs can be printed directly by computer; even It is also possible to produce a small amount of various products; and it can greatly reduce the waste liquid of the color paste containing the dye; and so on. On the other hand, compared with the existing plate-making printing and dyeing, there are problems such as slow printing processing speed and difficulty in reproducing strong colors. Therefore, inkjet printing and dyeing is usually used in the scope of sample cloth (see reverse) manufacturing or small-scale production. [0003] I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/00B41J2/01B41M5/00D06P1/18D06P1/26D06P3/06D06P3/10
CPCC09D11/328D06P1/6133D06P1/6138D06P1/65118D06P1/65131D06P3/24D06P5/30
Inventor 清水慎介梅田真理子铃木祐司宫田明
Owner NIPPON KAYAKU CO LTD
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