JPS5845512B2 - Kanshiki Embossed Texture Oyobisouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dry embossing transfer printing method and apparatus for simultaneously performing embossing and transfer printing.

In a normal sublimation transfer printing method using transfer paper on which a transfer pattern is formed using an ink containing a sublimable or melt-transferable dye, the sublimation or melt-transfer of the dye takes about 10 to 50 It took seconds.

However, in the case of embossing transfer in which embossing and transfer printing are simultaneously performed by heat embossing, the transfer time is short and consists only of the time taken to pass between the nips, so the transfer energy is insufficient.

Therefore, in order to improve transferability, it is necessary to slow down the transfer speed and lengthen the transfer time, or to increase the temperature or pressure.

However, depending on the material of the object to be embossed, there is a limit to the increase in temperature and pressure, and in the end, it is necessary to slow down the transfer speed and lengthen the transfer time, resulting in a decrease in efficiency. It is something that

Further, even if the transfer time was increased, the transferred cloth tended to be surface-dyed and had poor dye fastness, especially friction fastness and sublimation fastness.

The present invention was made in view of the above circumstances, and its purpose is to provide an emboss transfer printing method and apparatus that can efficiently obtain an emboss transfer cloth with improved dyeability (color development) and fastness. There is a particular thing.

That is, in the present invention, a transfer paper and a cloth to be transferred, on which an arbitrary transfer pattern is formed using ink containing a sublimable or melt-transferable dye, are separately preheated, and then these preheated transfer paper and Embossing and transfer printing are performed on the transfer fabric at the same time using an embosser with a temperature higher than the thermal deformation temperature of the transfer fabric while the transfer paper remains in close contact with the transfer paper, and the embossing is performed after the transfer paper is peeled off. It is characterized by heat-treating the transferred cloth using dry heat or wet heat.

Further, the present invention provides a device for use in the above-mentioned method, which is capable of preheating separately a transfer paper on which an arbitrary transfer pattern is formed with an ink containing a sublimable or melt-transferable dye, and a transfer cloth. an embosser for simultaneously applying embossing and transfer printing to the transfer cloth by heating and pressurizing the transfer paper and the transfer cloth, which have been preheated by these heating means and are in close contact with each other; It is characterized by comprising a dry heat or wet heat heating means for heat-treating the cloth on which the emboss has been transferred after the paper has been peeled off.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

A transfer paper 1 on which a desired transfer pattern is formed using ink containing a sublimable or melt-transferable dye is preheated by a heating roll 2, while a transfer cloth 3 is preheated by an infrared heater 4.

By preheating the transfer paper 1 in this manner, the transfer efficiency can be increased.

It is possible to preheat the transfer paper 1 by using a heating means such as a hot air oven, hot plate, or infrared heater instead of a heat roll, but a heat roll is most suitable in view of issues such as wrinkles, curls, and heat distribution of the transfer paper. Met.

Further, the transfer cloth can be preheated using a heating means such as a hot air oven, a hot roll, or a hot plate instead of the infrared heater 4.

The preheated transfer cloth is overlapped with a similarly preheated transfer paper, passes between a heated embossing roll 5 and a cotton roll 6 that constitute an embosser, and is subjected to embossing and transfer printing.

The surface temperature of the heated embossing roll 5 needs to be higher than the thermal deformation temperature of the transferred cloth.

The embossed and transfer-printed cloth 7 is then peeled off from the transfer paper 1 and passed through a Bintenku oven 8 for heat treatment.

A Bintengku oven is a pin-type tentering machine equipped with heating means.

Instead of a heating means using dry heat such as a Binten Kuu oven, a heating means using moist heat such as an HT steamer (high temperature steamer) may be used.

This heat treatment using dry heat or wet heat is carried out in accordance with the theory of ordinary thermosol dyeing, and allows the dye, which tends to stain the surface, to penetrate internally.

In this way, by providing a preheating process for the transfer paper and the transfer cloth, and a heat treatment process for the embossed transfer cloth, it is possible to significantly increase the transfer speed compared to embossing transfer printing using only a conventional embosser. The dye fastness of the obtained printed fabric, particularly the friction fastness and sublimation fastness, was excellent.

For the heat treatment, which is the final process, we considered using a normal dry transfer machine, but tests showed that the pressure applied by the pressure belt, albeit at a low pressure, caused the embossments created in the previous process to collapse. It was found that the effect of embossing was halved.

In this respect, when a pin tenter oven or an HT steamer is used, the embossing effect is not reduced because there is no pressure from the front and back surfaces of the cloth, and it has been found that this invention is extremely effective.

Examples will now be given to help understand the invention better.

Example Emboss transfer was performed on a 100% polyester Amundsen fabric using the apparatus shown in the drawings and under the following operating conditions.

The obtained printed fabric has a dye density as high as 200% and has a uniform color fastness compared to a printed fabric obtained only by embossing transfer using an embossing printer without preheating and post-emboss transfer heat treatment. It was in good condition.

In particular, the friction fastness and sublimation fastness were good.

The transfer paper used was a commercially available dry transfer printing paper (manufactured by Nippon Thermo Printex Co., Ltd.).

In addition, dry heat treatment using a pin tenter oven was performed as a heat treatment after the emboss transfer, but an HT steamer
Moist heat treatment was similarly effective.

Operation conditions Heat embossing roll & surface temperature 22,000° Embossing pressure and bulge pressure) 150kg//cm Temperature of heat roll for transfer preheating 150℃ Preheating temperature of transferred cloth 150℃ Transfer speed (linear speed)
5m/min pin tenter oven temperature
Heating time in pin tenter oven at 175°C: 50 seconds *Adjusted depending on oven length.

[Brief explanation of the drawing]

The drawing is a schematic diagram showing one embodiment of the device of the invention. 1... Transfer paper, 2... Heat roll, 3.
...Transfer cloth, 4...Infrared heater
5...--Heated embossing roll, 6...Kot-i-n roll, 7... Emboss-transferred cloth, 8... Pin tenter oven.

Claims (1)

[Claims] 1. Separately preheating eaves printing paper and transfer cloth on which an arbitrary transfer pattern is formed using ink containing a sublimable or melt-transferable dye, and then applying these preheated transfer patterns. Embossing and transfer printing are performed on the transfer fabric at the same time using an embosser with a temperature higher than the thermal deformation temperature of the transfer fabric while the paper and the transfer fabric are in close contact with each other, and then the transfer paper is peeled off and then the emboss transfer is performed. A dry embossing transfer printing method that consists of heat-treating the fabric using dry heat or wet heat. 2. Two heating means for separately preheating the transfer paper and the transfer cloth on which an arbitrary transfer pattern is formed using ink containing a sublimable or melt-transferable dye; After that, an embosser is used to simultaneously apply embossing and transfer printing to the transfer paper by heating and pressurizing the transfer paper and the transfer cloth that are in close contact with each other, and an embosser is used to simultaneously apply embossing and transfer printing to the transfer paper, and the embossed cloth after the transfer paper is peeled off. A dry embossing transfer printing apparatus comprising a dry heat or wet heat heating means for heat treatment.