JPS61258084A - Printing method - 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] [Industrial application field] The present invention relates to a textile printing method.

[Prior art]

Conventional textile printing methods include roll printing, screen printing, and, for example, British Patent No. 647105.

French Patent No. 1228880 9 Japanese Patent No. 4156
18 and Japanese Patent No. 440155, for example British Patent No. 6701
No. 74, British Patent No. 1284824, German Patent No. 2
No. 122805, US Pat. No. 2,588,286, US Pat. No. 1,954,451, and Japanese Patent Publication No. 4B-14865.

Special Publication No. 4B-18194 and Special Publication No. 45-21447
as well as for example German Patent No. 901495, German Patent No. 958787, US Patent No. 2111479, US Patent No. 2541178
No. 2,628,821 and US Pat. No. 275
There is a photosensitive printing method shown in No. 6144. Each of these conventional printing methods has the following serious drawbacks.

That is, roll printing and screen printing not only have the major drawback that it is almost impossible to print and reproduce delicate, graphic-like patterns and designs because rolls and screens are used. Dye loss is large during post-processing such as steaming, soaping, and washing, which tends to cause hot water contamination of fabrics and water pollution.

Although it is possible to express delicate, graphic patterns and designs with pure dry transfer printing, it is limited to synthetic fibers such as polyester and acetate, and is not possible with natural fibers. In addition, in the case of synthetic fibers, the texture is poor and phenomena such as pewter peeling are likely to occur.

In wet transfer printing, there are no restrictions on the type of fabric, but since it uses water-soluble dyes, lithographic printing is impossible, and if you want to obtain delicate patterns and designs like photographs, you have to rely on gravure printing. However, it is extremely uneconomical to produce printed products in small lots and in a wide variety of varieties, and is therefore unsuitable for industrial implementation.

In addition, although the photosensitive printing method can overcome the above-mentioned disadvantages of the printing method, it involves many manual elements and the process is extremely complicated, making it impossible to obtain printed products quickly and easily.

[Objective and Summary of the Invention] The present inventor has been researching textile printing methods for a long time, and in this research, he has solved each of the drawbacks of each conventional textile printing method, and created delicate and graphic patterns and designs. We have continued our intensive research with the aim of developing a printing method that can be economically and easily reproduced for a wide range of fabrics, both natural fibers and synthetic fibers. In this research, I came up with the idea of printing without using gravure printing using lithographic inks or water-soluble dyes that could not be used at all in lithographic printing, and based on this idea, I continued my research. As a result, water-soluble dyes are insolubilized with aliphatic and/or aromatic nitrogen-containing organic compounds to give them properties as pigments, and by kneading this with a general lithographic ink vehicle, lithographic overprinting or lithographic printing can be achieved. It has been discovered that offset printing is possible and that the intended purpose can be achieved by subsequent post-processing such as steaming, soaping, and water washing. In addition, in this research, the above-mentioned insolubilized material was further made lipophilic with an inorganic metal compound to improve its wettability with the oil-based vehicle for lithographic printing, improve the leveling and transferability of the ink, and result in deep, level dyeing. They also discovered what they could do and finally completed the present invention. That is, in the present invention, a water-soluble dye is insolubilized with an aliphatic and/or aromatic nitrogen-containing organic compound, and if necessary, an inorganic metal compound is used to make it lipophilic. Using the ink prepared by mixing with an ink vehicle, lithographic direct printing or lithographic off-nut printing is performed on the surface of the fabric, followed by steaming.

This relates to a textile printing method characterized by performing post-treatments such as soaping and washing.

〔Effect of the invention〕

By the method of the present invention, all of the above-mentioned difficulties of conventional textile printing methods can be overcome. That is, (a) it becomes possible to form delicate patterns and designs similar to color photographs.

(b) With a small loft, a wide variety of printed products can be obtained economically, quickly, and easily.

f→ It can be applied to all kinds of fabrics, and can be applied not only to various synthetic fibers but also to various natural fibers.

2) Undesirable phenomena such as water pollution, hot water pollution, and dye loss hardly occur.

(E) It has excellent texture and various fastness properties, and there is no need to worry about so-called pewter peeling.

etc. will be effective.

[Structure of the invention]

In the method of the present invention, the water-soluble dye is aliphatic and/or
An insolubilization treatment is performed with an aromatic nitrogen-containing organic compound, and if necessary, a lipophilization treatment is performed with an inorganic metal compound, and the obtained insolubilized material is kneaded with a lithographic ink vehicle to prepare an ink. Next, using this ink, lithographic overprinting or lithographic offset printing is performed on the surface of the fabric, followed by steaming,
Post-treatment such as soaping and washing with water is performed.

One particularly noteworthy feature of the present invention is that by insolubilizing the water-soluble dye, which cannot originally be made into lithographic ink, by the above-mentioned means, it can be easily kneaded with an oil-based lithographic vehicle to form ink. be. The second major feature is that the insolubilized material is treated with an inorganic metal compound to make it oleophilic, as necessary, to improve the wettability of the insolubilized material with the lithographic oil vehicle. Leveling.

The goal is to improve the transferability and make it possible to achieve deep, level dyeing.

The ink used in the method of the present invention is produced by subjecting a water-soluble dye to water-insolubilization treatment with an aliphatic and/or aromatic nitrogen-containing organic compound, and then kneading this with a lithographic ink vehicle. . There are various types of water-soluble dyes that can be used in this case, and for example, direct dyes, reactive dyes, acid dyes, acid alloy dyes, basic dyes, etc. can all be used effectively in a wide range.

The organic nitrogen-containing compounds used to make these water-soluble dyes water-insoluble include not only aliphatic compounds but also aromatic compounds. Typical examples of aliphatic compounds include amines and amides. The former includes primary, secondary, and 8th-class amines, and specific examples include various alkyl amines such as 1-aminododecane, N-
Tetradecylamine, palmitylamine, stearylamine, etc. can be exemplified, and the latter amides include various fatty acid amides, such as oleic acid amide and ricinoleic acid amide.

Examples include stearic acid amide. Representative examples of the aromatic compound include various aromatic amines and various aromatic amides, and specific examples include phenylenediamine, diphenylguanidine, and the like. Among these compounds, 1-aminododecane, 0-phenylenediamine, and oleic acid amide can be exemplified as preferred.

When insolubilizing a water-soluble dye using such a nitrogen-containing organic compound, the nitrogen-containing organic compound is usually dissolved in a water-soluble organic solvent as necessary and added to an aqueous solution of the water-soluble dye at room temperature or under heating. Mix.

The solvent at this time may be any water-soluble organic solvent, and examples thereof include various alcohols. Next, the insolubilized product can be obtained by filtering, washing and drying the mixture described in L.

In the present invention, the above-mentioned insolubilized material can be further treated with an inorganic metal compound to make it lipophilic, if necessary. As already mentioned, this lipophilic treatment increases the wettability with the lithographic oil vehicle, improves the leveling and transferability of the ink, and enables deep level dyeing. The inorganic metal compounds used in this case include inorganic compounds of metals other than metals that can form water-soluble salts. More specifically, halides of various metals that form water-insoluble salts can be exemplified as preferred examples. Examples include calcium chloride and iron chloride.

When treating the above-mentioned insolubilized material to make it lipophilic using these inorganic metal compounds, the insolubilized material is dispersed in water together with an appropriate surfactant as necessary, and an inorganic salt compound is added thereto. Mix thoroughly under heating, then filter.
Dry, wash and finally dry.

As the lithographic ink vehicle used in the present invention, a wide range of vehicles that have been conventionally used for this type of lithographic ink can be used as they are, such as rosin, rosin-modified phenolic resin, alkyd resin, and oil-soluble acrylic. resin.

Any resin that can be used as a lithographic vehicle, such as petroleum resin, or natural drying vegetable oils such as tung oil and linseed oil without resin, or synthetic drying oils can also be used.

In addition, the present invention does not preclude the addition of other usual additives used in lithographic inks, such as thickeners, thickening agents, gelling agents, dryer paints, anti-back transfer agents, etc. I can give an example.

In the present invention, an ink is prepared according to a conventional method using this lithographic ink vehicle and a water-insolubilized product of the above-mentioned water-soluble dye, or an insolubilized product further subjected to lipophilic treatment or other treatment. In this case, the ink and the means used may be in accordance with conventional methods.

Using the ink thus obtained, lithographic overprinting or lithographic offset printing is performed on the surface of the fabric. In this case, not only synthetic fibers but also natural fibers can be used.For example, synthetic fibers include wet nylon, polyester, acrylic, and various other synthetic fibers, and natural fibers include cotton, silk, linen, and wool. etc. can be exemplified. Any conventional method such as lithographic direct printing or lithographic offset printing can be effectively used.

The thus printed fabric is then dried.

This drying is preferably dry to the touch or completely dry.

This is then followed by the usual steaming, sawing, rinsing and rinsing.

The printed material obtained by the method of the present invention reproduces delicate and graphic designs in a rich and vivid manner, resulting in an extremely excellent printed material.

〔Example〕

The method of the present invention will be explained below with reference to Examples, and all numerical values indicating the ratios to the formulations indicate weight ratios unless otherwise specified.

Example I Preparation of Solution A Add Direct Fast Yel to 20 parts of boiling water.
low BO (0, 1, Direct Yellow
28) Dissolve 2.5 parts of (Nankai dye).

Preparation of Solution B 5 parts of ortho-phenylenediamine are dissolved in 1.75 parts of hydrochloric acid and 8.5 parts of ethanol.

Both solutions A and B are mixed, filtered, washed and dried to obtain an insolubilized dye t'A.

Manufacture of ink The above dye insolubilized materials: 1 Super glossy medium (Dainippon Ink) 1: Linseed oil varnish: 0.2
Extra festival...0.
1 This mixture is milled in a three-roll mill to obtain a lithographic ink.

The yellow lithographic ink thus produced was used to print on cotton cloth using a lithograph printing machine. After drying the ink, the fabric was steamed, soaped, and washed, resulting in a printed fabric with a bright yellow graphic pattern.

Example 2 Solution A: 5olophen, a direct dye, in 200 parts of boiling water
ylRed6BL160% (0,1, Direct R
ed 79) (OIBA-Geigy) 2.5
Dissolve the parts.

Solution B: Prepare a solution consisting of 5 parts of 1-aminododecane, 8.5 parts of ethanol, and 1.75 parts of hydrochloric acid.

Both solutions A and B are mixed, passed through, washed with water, and then dried to obtain a bulk dye insolubilized product.

Manufacture of ink The above dye insolubilized substances ・・・・・・1 Super gloss medium (Dainippon Ink) ・・・・・・1 Linseed oil varnish・Song・0.2 Extra festival ・・・・・・0.1
The mixture is then kneaded using a three-roll mill.

A lithographic offset printing machine using the red ink produced in this way! Printing is performed on nylon fabric with a trowel. After the ink had dried, the fabric was steamed, soaped, and washed with water, yielding a printed fabric with a colorful and delicate pattern.

Example 8 Solution A: Direct dye 5o1opheny per 100 parts of boiling water
IRed 6BL 160% (0, 1, Direct
Red 79) (OIB A-Geigy)
Dissolve 2.5 parts.

A solution consisting of 6 parts of B-nioleic acid amide, 8.6 parts of methanol, and 1.75 parts of hydrochloric acid is prepared.

Both solutions A and B are mixed, filtered, washed with water, and the residue is dried to obtain a bulk dye insolubilized product.

Manufacture of ink and insolubilized dyes...1
Super glossy medium (Dainippon Ink)...1 Linseed oil varnish...40, No. 2 extra fest...0.1
The mixture is milled using a three-roll mill to make ink.

The red ink produced in this way is printed on cotton cloth using a lithographic offset printing machine, and after the ink dries, the cotton cloth is steamed, soaped, and washed with water to create a deep red H.
We were able to obtain a robust printed product with 4 fine patterns.

Example 4 Adjustment heat of liquid A! ! 20 parts 5o1ophenyIRed 6 B
L 160% (0, L Direct Red 79
) (Dissolve 12.6 parts of OI BA-Geigy.)

Preparation of B solution 5Oxin01D (Sumitomo Chemical diphenylguanidine) 5
8.5 parts of ethanol and 1.75 parts of hydrochloric acid.

Both solutions A and B are mixed, filtered and washed, and the residue is dried to obtain an insolubilized dye.

Ink production is described: Dye insolubilized material: 1. Ultra-gloss medium (Dainippon Ink): 1: Linseed oil varnish: 0.
Varnish outside No. 2...
The mixture was milled using a three-roll mill to create a red lithographic ink with a composition of 0°1.

This ink was printed on a cotton fabric using a lithographic offset printing machine, and after the ink was dried, the fabric was steamed, soaped, and washed with water to obtain a delicate and durable print.

Example 5 Two parts of the insolubilized dye obtained in Example 4 were dispersed in 100 parts of hot water, and further Fe0A! Add 100 parts of 56H206% aqueous solution and 100 parts of 1% sodium lauryl sulfate solution, stir, filter, wash and dry the residue.

The residue thus obtained becomes a lipophilized product with excellent dispersibility in an oil-based lithographic vehicle.

Ink production and lipophilic treatment products ・・・・・・1 Super glossy medium (Dainippon Ink) ・・・・・・1 Linseed oil varnish ・・・・・・0.2
Extra varnish...0.
The mixture is ground using a three-roll mill and made into ink.

Printing was carried out using this ink under the same conditions as in Example 4, and steaming, soaping and washing were carried out as in Example 4, and a printed product with even better coloring strength than in Example 4 was obtained.

Example 6 2 parts of the insolubilized dye obtained in Example 4 were dispersed in 100 parts of hot water, and 100 parts of a 20% solution of 0aO1z6H20 was added.
1 part, stir, filter, wash and dry the residue.

Using the resulting lipophilic treatment residue, the following steps were carried out in exactly the same manner as in Example 6. The resulting print exhibits a coloring strength equivalent to that of Example 5, and is far superior in density to that obtained in Example 4.

(that's all) Hiroshi Seki works as a patent attorney.

Claims (2)

[Claims] (1) Using an ink prepared by insolubilizing a water-soluble dye with an aliphatic and/or aromatic nitrogen-containing organic compound and kneading the resulting insolubilized product with a lithographic ink vehicle, A textile printing method characterized by performing lithographic direct printing or lithographic offset printing on the surface of a fabric, and then performing post-treatments such as steaming, soaping, and water washing. (2) The printing method according to claim 1, characterized in that the insolubilized material is further subjected to lipophilic treatment with an inorganic metal compound.