DE1469354C - Process for the production of an ironable stiffening material while preventing the adhesive spray application from sinking in - Google Patents

Claims (1)

It is already known that articles of clothing contain 0.25%. to provide stiffening inserts in order to give them a better shape . and to give stability. · While you used to prevent the adhesive from sinking in for this purpose horsehair deposits are almost exclusively attributed to the oleophobic effect used, the so-called 5 can be used more and more. It is more likely that the oleophobic Nonwovens through. This is understood to mean textile fibers an immediate coagulation of the poly- sheet-like structures, which at their intersection points with amides or another adhesive from the solution are connected to each other. Among the numerous causes. This coagulation occurs at the moment position method is optionally only one in which a polyamide droplet on the »oleopho- according to the German patent specification 920 211 ver io biert «surface of the stiffening insert strikes, grasslands. . The immediately coagulated polyamide then remains on Adhere to the tedious sewing in of the stiffening materials of the surface. A similar effect also occurs To bypass in the garments, it is already when spraying the polyamide solution on wet or known to provide the same with an adhesive powder, wet goods, because water is known to coagulate which softens in the heat. In the case of what is known as a 15 lating effect on polyamide solutions. However, this one is ironable stiffeners, it is sufficient not to compare the prepa effect with that which tied insert with the adhesive side facing when sprayed onto the »oleophobic« material Put on stiffening tissue and get hot with it. Run the iron over it. Under the pressure and example Both fibrous sheet-like structures become firmly attached to the heat connected to each other. Such a method is e.g. B. A fiber fleece consisting of 50% polyamide fibers from the German Auslegeschrift 1146 028 known. (3 denier) and 50% rayon (3 denier) with an m * -Ge- Attempts have also been made to use polyamide as a weight of 35 g. Apply adhesive to stiffening inserts. sion bound that after drying an m ² -Ge In this case, the result will be because of the high melt weight of 70 g. or softening point of the polyamide. This nonwoven is sprayed on with a 0.25% fluorine sintering, but rather a solution of the polyamide carbon resin emulsion in a directional emulsion. This gives a partly coarse tap water soaked, thread-like, partly flat, fine spray coating to 100% wet absorption, depending on the squeezed off and dried at 120 ° C,
the spray condition of the solution due to the high 30 to the thus prepared nonwoven fabric be 70 g agent content but partially ig ^s in the interior de £ _ of a 30% polyamide solution consisting of
Fiber layer seeps in. Since the adhesive effect is natural, ..,. , _ ■., "" _. ,
according to polyamide soluble only in those proportions of the adhesive ...... 32 parts by weight can be caused, which is on the surface p-Oxybenzoesauredenvat 30 weight point the spraying of polyamide brings about 35 (plasticizer for the some advantages over conventionally used f, X ^ami ",," « ^ ■ , Adhesive masses have the disadvantages listed above. JJethy alkoho 1 70 parts by weight If you spray too large amounts, then methylene chloride will be ......... 30 weight points the desired se stiffening so large that the sprayed and dried at about 8O ⁰ C. Interlinings become unusable for many purposes, 40 The resulting product has a perfectly z. B. as a result of breakdown phenomena. Sprays on the upper side of the nonwoven. on the other hand, if you do not do enough, the desired adhesive effect is applied. .,.; .. unsatisfactory. ^ It has now been found that in the manufacture. one with an adhesive that softens in the heat.
medium in the form of a spray application ironable stiffener one the undesirable 1st process for producing one with an in Sinking in of the sprayed-on solutions of polyamide of the heat-softening adhesive in the form of a or other adhesive materials thereby preventing spray application provided ironable sales, that the stiffening material before the 5 ° stiffening material is prevented from sinking spray the solutions of the adhesive with one of the sprayed adhesive solutions, d u r c h Oil-repellent agents are impregnated in such quantities that the that an increase in weight of at least fungsstoff before the spraying of the solutions 0.25% is achieved. Particularly favorable results adhesive with an oil repellent in is obtained when the oil repellent 55 is impregnated in such amounts that a weight fluorocarbon resins used. increase of at least 0.25% is achieved. While generally tissue for oleophobia 2. The method according to claim 1, characterized in treatment with such quantities of these agents is characterized by the fact that oleophobic agents are not that a weight increase of 6% results, ionogenic emulsions of fluorocarbon resins In the present case, quantities of 60 are sufficient.