DE1253664B - Method and device for the production of dimensionally stable and crease-resistant fabrics from Celulose 2 1/2 acetate threads or yarns - Google Patents

Description

Method and device for the production of dimensionally stable and crease-resistant materials Cellulose Fabric 21 2 Acetate Threads or Yarns There are several processes for the "crease-resistant" finishing of fabrics made from cellulose 21! 2 acetate threads or yarns known. Try to reduce the crease resistance of cellulose by using appropriate resin equipment To increase 21/2 acetate fabric so that ironing after washing is superfluous, have so far not led to a satisfactory result. A relatively large one The anti-crease effect was achieved in that the fabric was bound in a floating manner and pre-gauze and was equipped tension-free.

It is also known to emboss cellulose triacetate and 21/2 acetate, but this was particularly the case with 21/2 acetate at lower temperatures and lower Pressing performed as the claimed. The only exception to this was the cases in which a crushing of fibers was desired in order to obtain a moiré or GK effect. It was also known per se. Fabric made from cellulose 21'2 acetate to dry at elevated temperature, but the residence times were so short in each case or the temperatures are so low that a fixation, theoretically not at all was to be expected, was not achieved.

It has now been found, and this forms the subject of the present invention, that synthetic resin-free, crease-resistant fabric webs made of cellulose 21/2 acetate threads or yarns with very good dimensional stability are obtained. if you emboss a fabric between 90 and 130 C and, after carrying out known finishing processes, subject it to a fixation with steam of 120 ° C, which is as dry as possible. All procedural steps must be carried out without tension. The fabrics obtained in this way have a dimensional accuracy which is ± 10 ° in the washing test and are free of wrinkles after washing.

This treatment is effected in conjunction with the other finishing steps a wrinkle-resistant effect of the acetate fabric, as it is according to the previously known. procedure could not be reached. Acetate fabrics treated according to the invention can after washing and drying, they can be worn again without ironing and keep their shape "Easy-care" properties remain unchanged.

The example gives the necessary to achieve the anti-crease effect Finishing steps as well as the tissue structure selected, for example.

Example A fabric consisting of: in the warp 75 the acetate yarns with 50 individual fibers and 190 twists per meter, in the weft 150 the acetate yarns with 75 individual fibers and 80 twists per meter. with alternating floating and short-setting threads in a very dense setting (73 threads per centimeter in the warp and 30 threads per centimeter in the weft), a fine crystal design at 90 ° C and a pressure of 6 t (working width 1 m) embossed, then the reverse side is embossed with a medium crystal design at 130 ° C and a pressure of also 6 tons. The fabric was then wetted and desized in a soap-ammonia bath in book form up to 75 to 80 ° C. It was then filtered off with suction and dried on a short loop dryer. The fabric was then allowed to run over a leveling frame with slight steaming and without additional tension and then printed with disperse dyes. It was then steamed in a star steamer, carefully washed in the usual manner, suction filtered and again dried on a short loop dryer. The fabric was then finished, dried without tension with a slight overfeed and lightly steamed on a leveling frame. The fabric was then fixed for 4 minutes with steam at 120 ° C., which is as dry as possible, in a finishing machine. The set, dry tissue was passed through a breaker without additional tension in order to improve the grip of the tissue.

The same treatment can of course be used for uncoloured Tissues are applied.

Claims (3)

Claims: 1. Process for the production of dimensionally stable and crease-resistant Cellulose fabric 21 "2-acetate threads or yarns with dense adjustment and alternating floating and short setting Threads in which the fabric is tension-free is embossed and all other finishing steps such as printing, dyeing, finishing and drying, also carried out without tension, characterized in that that the Gaufrage carried out at 90 to 130 ° C and a fixation with possible dry steam at 120 ° C. 2. The method according to claim 1, characterized characterized in that the Gaufragedruck with a working width of 100 cm 6 to 8 t, preferably 7 t. 3. The use of a finishing machine as a Device for performing the fixation according to the method according to claim 1. Publications considered: W. Bernard, »Appretur der Textilien«, Berlin, Göttingen, Heidelberg, 1960, p. 201.