JPS5921997B2 - High temperature printing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved textile printing method, particularly to a method improved so that the steaming step can be carried out efficiently.

In general, printing is carried out by printing a printing paste onto the surface of a dyeable material, such as cloth, using a printing mold or an engraving roller, and then steaming it to fix the dye to the cloth, followed by washing with water to remove the paste.

This steaming treatment is preferably carried out at as high a temperature as possible;
When performing high-temperature steaming in a conventional textile printing process, it was necessary to raise the pressure inside the steamer to above atmospheric pressure to achieve a high temperature of 100° C. or above.

However, with this method, it is necessary to raise the ambient temperature of the dyeable material by using air, which has low thermal conductivity, as a medium, so it is not efficient and requires a special device for pressurization. There is a drawback.

On the other hand, if metals or other minerals are exposed to a high-temperature medium in a certain atmosphere, their temperature will rise rapidly, even if the surrounding atmosphere has low thermal conductivity such as air. It is known.

The present inventors have discovered that the drawbacks of the conventional method described above can be eliminated by utilizing this phenomenon in the steaming step of the textile printing method, and based on this knowledge, the present invention has been accomplished.

That is, the present invention provides a high-temperature textile printing method that is characterized in that when printing a dyeable material, the printed dyeable material is brought into close contact with the surface of a metal plate or metal block and brought into contact with superheated steam under normal pressure. .

The metal plate or metal block used in the method of the present invention may be made of any metal, but iron, copper, aluminum, or an alloy thereof is usually used.

In this way, although it was difficult to obtain a steaming temperature of 100°C with the conventional normal pressure steamer, the present invention enables the printing material to be placed in close contact with the metal plate or metal block in the steamer. If it is placed inside the steamer, even if the atmosphere inside the steamer does not reach 100°C, the printed material itself can reach a temperature of 120°C or higher.

In the conventional method, when a non-pressure steamer was used in the steaming process for clothing that was sewn to some extent, such as sweaters, the color development was often insufficient depending on the type of fiber, but the method of the present invention This method has the advantage of not only eliminating these drawbacks but also shortening the steaming time and increasing color fastness.

Next, an embodiment of the present invention will be explained using the printing of a wool sweater as an example. First, the body mold of this sweater is made from a plate of stainless steel 5US32, this plate is inserted into the sewn sweater, the printing is performed, and then steamed as it is. Place it in a machine and treat it with superheated steam for a specified period of time.

In this way, the fine lines and edges of the pattern, which could not be revealed in conventional textile printing without a drying process after printing, can be printed because the printed material is in close contact with the hot metal plate. The dye is quickly adsorbed to the printed area without any water or dye leaking out other than the printed area, so it is clearly visible.

In addition, since it can be sent to the steaming process immediately after printing without the need for a drying process, the dye is well-dyed even to the fluff parts that protrude from the fabric surface, and at the same time, the hue of each dye used can be faithfully expressed. .

According to the present invention, dye fastness, especially in deep colors, can be significantly improved compared to conventional methods.

Furthermore, even in dark color printing of polyamide fibers, which are generally considered difficult to dye, it is possible to obtain stable navy or black dyeing.

In addition, polyester fibers and blends of polyester fibers and wool can also be dyed in the same way.

Next, the present invention will be explained in more detail with reference to Examples.

Parts in each example are parts by weight. Example 1 Prepare a printing paste with the following composition.

Irgalan Black GBL 20 parts Glinicin A 10 parts Levalin VKU
30 parts Primogen ES
200 copies Indaruka PA (1:10)
600 parts acetic acid 3
0 parts water 110 parts total 1000 parts A wool sweater with a metal plate (made of stainless steel) inserted,
After printing, the above-mentioned printing paste is placed in a steamer, superheated steam is blown under normal pressure and steamed for 20 minutes, then washed with water and dried.

In this way, vivid dyeing can be obtained.

Example 2 Prepare a printing paste with the following composition.

Indigo Blue R 30 parts Glinicin A I 5 parts Primogen ES 100 parts Indulca PA3
0 (1:10) 400 parts Maypro Gum NP-25
(1:15) 300 parts formic acid
30 parts water
125 parts total 1000 parts A polyamide fiber cloth was adhered to the same metal plate as in Example 1,
After printing with the above printing paste, it is dried, placed in a steamer, steamed for 30 minutes under normal pressure, washed with water, soaped, fixed with Kimran Fix, and dried.

A bright blue dyeing was thus obtained.

Example 3 Prepare a printing paste with the following composition.

Dianic sprue 50 parts Desper T
L 30 parts Maypro Gum NP-2
5 (1:15) 650 parts Primogen ES
100 copies 0, P, P, carrier
60 parts water 110
Total: 1000 copies Polyester fiber cloth adhered to the same metal plate as in Example 1 was printed with the above printing paste, dried, placed in a steamer, treated under normal pressure for 50 minutes, washed with water, reduced and washed, and then Wash with water and dry.

In this way, a bright blue dyeing is obtained.

Claims (1)

[Claims] 1. A high-temperature textile printing method characterized by bringing the printed dyeable material into close contact with the surface of a metal plate or metal block and contacting it with superheated steam under normal pressure.