JPS58169580A - Resist style of rayon fiber - 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 relates to a resist dyeing method for rayon fines.

More specifically, in the present invention, a rayon fabric is immersed in an alkaline bath, washed with water, dried, and then a sulfatoethyl sulfone type reactive dye is applied, and then a low reaction substitution type reactive dye: the sulfatoethyl sulfone type reactive dye is applied. This resist dyeing method for rayon fibers is characterized by printing with a printing paste containing a sulfone-type reactive dye resist dye and an alkaline agent, drying in a drying process, and then subjecting it to steam treatment.

Conventionally, pad-printing methods and one-phase or two-phase printing methods have been known as resist dyeing methods using reactive dyes for cellulose fibers. For example, in the one-phase pad-print method, a cellulose fabric is padded with a solution containing a sulfatoethylsulfone type reactive dye and an alkaline agent, and then dried. The reactive dye resist dye and sodium bicarbonate are printed with gold wire dyeing paste, dried, and heated at io~110℃, 15~
There is a way to fix it by steaming it for 25 minutes.

In addition, in the two-phase method, a cellulose fabric number and a sulfate ethyl sulfone type reactive dye P solution are padded, dried, and then a low reactivity substitution type reactive dye and a resist agent of the sulfate ethyl sulfone type reactive dye are added. After printing with a printing paste containing bicarbonate and soda, intermediate drying, steam treatment at 100°C for 10 minutes or baking treatment at 140°C to 160°C for 6 minutes, and then padding in an alkaline hot liquid such as sodium silicate. This is a method of fixing a sulfate ethyl sulfone type reactive dye.

However, when applying the conventional resist dyeing method using reactive dyes to rayon fabrics such as cellulose fibers such as human silk and cotton wool, commercially available dyes used for the ground color are different from the one-phase and two-phase methods. Some fatty ethyl sulfone type reactive dyes (e.g. navy, black) do not have a complete resisting effect, and especially for dark colors, it is necessary to draw vivid designs on a deep background color. If the resist dyeing effect is poor, the hue of the contrast dye will become dull, or if the resist dye is increased in the case of white resist dyeing, it may be necessary to increase the resist dye. There was a drawback that it could not be provided.

Among cellulose fibers, the present inventors conducted extensive studies on how to obtain a good resist dyeing effect on rayon, which has a poor resist dyeing effect. As a result, the inventors conducted an alkali treatment on the above-mentioned rayon fabric prior to resist dyeing. We found that the scales had a good resisting effect.

In the present invention, the water used as the alkaline agent for treating rayon cloth is $1! Any product with a pH of 12 or higher can be applied, but when processing for a short period of time, the pH
Those exhibiting a molecular weight of 18 or more are preferred, such as caustic soda, potassium aluminate, and the like. The amount of alkaline agent used is determined in relation to the treatment temperature and time, but for example, when using caustic soda for treatment at a temperature of 20-25°C for 80 seconds, it is in the range of 8-10'Be', preferably 6-79Be. '
is effective.

If the alkalinity is low, the improvement in the resist dyeing effect that is the objective of the present invention will not be sufficient, and if the alkalinity is high, the texture of the fibers will become hard, and the flexibility will be reduced, which is a problem in the length of sea-firing. If you reduce your sexuality, it becomes K.

This alkali treatment is performed at room temperature, and it is important to uniformly apply a certain amount of alkaline waves to the fabric.For this reason, when performing the treatment for a short time, it is preferable to use a pad method in which the cloth is spread.

In the present invention, the sulfate ethyl sulfone type reactive dye is a dye having a group-5 (hGhcHzO5OsHtt reactive group).Many dyes belonging to this group are already known. drugs, depending on
For example, as migration inhibitors, sodium alginate, maleic anhydride and vinyl acetate copolymer sodium salt,
Sodium metanitrobenzenesulfonate as a reduction inhibitor, sodium polyphosphate as a sequestering agent, urea as a wetting and dissolving agent, etc. can be optionally used.

As the resisting agent for the sulfatoethylsulfone type reactive dye, any known agent that chemically bonds with the sulfatoethylsulfone type reactive dye can be used, such as hydroxymethane. Sodium sulfonate, acidic sodium sulfur, diethylamine, ethylenediamine, di-i
Polycationic compounds such as ionic co-metallic compounds obtained by adding a curing catalyst to a mixed solution of thylenetriamine, amino acids, and other amines, guanyl compounds, aromatic monosulfonamides, cyclic aminotriazine, and formaldehyde; Examples include compounds described in @5g-114989-1 and JP-A-58-114990.

Specifically, Cleantex PWC1 Eikagakusha product)
, GCR-18, GCR-17 (Japan 1 [tl, In)
, Uniston RR-80, Uniston RR-60 (product of Hayashi Kagaku Co., Ltd.), SSR Paste 50G Conc (product of Furuha Kagaku Co., Ltd.), Resistol HWS (product of IN Seikagaku Co., Ltd.), and the like are used. The amount of these to be used is appropriately determined depending on the type of dye used in the padding, the degree of purulence, and the form of the fabric. In the present invention, the low-reactivity displacement layer reactive dye is used as a so-called contrast color dye to obtain a colored discharge printing effect. Examples of such dyes include the following types.

I 5 Many dyes themselves having such reactive groups are already known.

In the present invention, when the l-phase method is adopted as the pad method for the sulfatoethylsulfone type reactive dye, the alkaline agent must include salts of weak acids and strong bases such as sodium formate, sodium acetate, and sodium trichloroacetate, and an intermediate drying solution. A volatile organic acid, such as acetic acid, is added to prevent the dye from sticking to the pad solution, and the pH of the pad solution is adjusted to 5.6 to 8.6 IC. In this case, if necessary, urea is used as a wetting solubilizer, and sodium metanitrobenzenesulfonate is used as a reduction inhibitor.
Sodium ethylenediaminetetraacetate can be used as a metal ion sequestering agent, and sodium alginate can be used as a migration inhibitor.

Further, when a two-phase method is employed, organic acids for alkaline and pH adjustment are excluded from the dye pad solution.

On the other hand, the dye printing paste contains the above-mentioned substitutional reactive dye and an alkaline agent, such as soda carbonate, bicarbonate soda, etc.
Other chemicals such as sodium metanitrobenzenesulfonate as a reduction inhibitor, sodium hexametaphosphate as a sequestering agent for metal ions, and urea as a temperature control solubilizer can be optionally used as needed.

In this way, resist dyeing of rayon cloth with sulfatoethylsulfone type reactive dyes, which had been a problem with conventional methods, can be successfully carried out, and the industrial value is extremely high. A similar improvement effect is also observed in the print-to-print method using the resist dyeing method. Next, the present invention will be specifically explained using examples.

In the text, parts are parts by weight.

Example - A Rouyong silk fabric is immersed in a 5° Be' solution of caustic soda using a pad method at room temperature, and after 80 seconds of immersion, it is washed with water, and a neutralizing solution containing 5 parts of acetic acid is added. After thoroughly neutralizing the alkali, wash with water and dry.

Next, 80 parts of Sumifix Bra Tsuku B (sulfate ethyl sulfone type reactive dye - produced by Sumitomo Chemical Co., Ltd.) was dissolved in 80 parts of boiling water, followed by 88501M, metanitrobenzenesulfone - 10 parts of soda, and 60111 sodium trichloroacetate. ! , add 6 parts of acetic acid (48% solution) and add the remaining amount to water to prepare a total of 1000 parts of pad liquid. This solution was then padded onto the Rayon silk fabric and subjected to intermediate drying for 13 minutes at 11B'C.

Separately, add 50 parts of Sumifix Brilliant Niro H1G (monochlortriazine reactive dye - product of Sumitomo Chemical Co., Ltd.) with heat @ 200 parts and urea aO* to completely dissolve it.
After cooling, 500 parts of Duck Algin NSPM (6% pace, product of Kamogawa Kasei Co., Ltd.), 10 parts of sodium bicarbonate, 6 parts of sodium metanitrobenzenesulfonate, and Clean Chic agent - Kyoei Chemical Co., Ltd. product) 60 parts, total 1
000 parts of uniform printing paste are prepared. This printing paste is printed on the pad-dried cloth, and after intermediate drying, it is subjected to steam treatment at 100° C. for 15 minutes under saturated steam, and finished by washing, soaping, and washing with water.

By this method, a discharge-printed cloth with Vivid Erotic = 6 as an accent color on a black background was obtained. On the other hand, fabrics that are not treated with alkali,
The accent yellow color had an olive tinge, and a clear yellow color could not be obtained.

Example 2 A rayon soft fabric was immersed in a strong potassium 4°Be' solution at room temperature using a pad method, and after timing was set for 80 seconds, it was washed with water and thoroughly made alkaline with a neutralizing solution containing 5 parts by volume of acetic acid. After neutralizing, wash with water and dry.

Next, Sumifix Navy Blue GS (sulfatoethyl sulfone type reactive dye - Sumitomo Chemical Co., Ltd. product) 80
1 part was dissolved in 800 parts of boiling water, followed by 60 parts of urea and metanitrope.

Add 10 parts of sodium zenesulfonate and make the remaining amount 1 part with water.
000 parts by weight of pad waves are prepared.

Next, this liquid is padded onto the rayon cloth and subjected to intermediate drying.

Separately, add 50 parts of Resistol HWS (sulfate ethyl sulfone type reactive dye resisting agent - Meisei Kagaku Co., Ltd. product) to 8 parts of water.
After dissolving in 50 parts, 600 parts of Snow Algin M (Fuji Chemical Co., Ltd. product) 6-cy paste was added to prepare a uniform printing paste totaling 1000 parts.

This printing paste is printed on the pad-dried cloth, and after intermediate drying, it is immersed in sodium silicate (46° Be wave at 96° C. for 10 seconds, washed with water, soaped, and finished with water.

A pure white resist-dyed cloth on a blue background was obtained by the dyeing method. On the other hand, in the case of the fabric that was not treated with alkali, the resist-dyed area showed a pale blue color and was in a contaminated state.

Claims (1)

[Claims] Rayon fabric is soaked in an alkaline bath and then washed with water.
After drying, a sulfate ethyl sulfone type reactive dye is applied, and then a printing paste containing a low-reactivity, substitution type reactive dye, a resist dye of the sulf-1-toethyl sulfone type reactive dye, and an alkaline agent is printed, A resist dyeing method for rayon fibers that is characterized by intermediate drying and then steam treatment.