DE257459C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

'- M 257459 CLASS Bn. GROUP

Dr. LEON LILIENFELD in VIENNA.

Patented in the German Empire on January 20, 1912.

So far, viscose (cellulose xanthogenate) has been printed, coated or finished or filled or sized fabrics, such as fabrics, webs, paper or the like. In the So treated as to be treated either by steam or dry heat or hot water or acids alone or in admixture with glycerine or sugar, etc., or with acids and salts or with salts alone (e.g. ammonium sulfate, ammonium chloride, common salt or the like) or with bisulfite lye or with heavy metal salts or with water-removing Agents such as alcohols, etc., and then subjected them to a washing process in order to to free the insolubilized viscose from the impurities it contains.

It was observed that the treatment with viscose (cellulose xanthogenate) printed or coated or finished or filled or sized fabrics with salts or double salts of aluminum or with in water or acids or alkalis soluble aluminum compounds compared to the previous processes compared to the technical ones Progress entails that the compound of viscose or the cellulose or hydrocellulose regenerated from it with it the substance on or in which it is located is more intimate, that is to say that it is on this Fabric adheres better. The consequence of this is that those produced by the present process Printing and application layers, finishes, fillings and finishing layers in both dry and wet conditions. and are more scratchy than those obtained with previous methods.

To carry out the process, those with raw or one of the known Process (using salts, weak acids and salts, alcohols, weak acids and Alcohols, other dehydrating agents, bisulphite lye, sulphurous acid, carbonic acid and other weak acids and the like) coated or printed on purified viscose or finished or filled or sized fabrics, [such as fabrics, webs, paper or the like, in completely or partially dried or still damp or wet state either immediately or after prior insolubilization of the viscose with the aid of steam or dry heat or Deposits and the like brought into a bath, which consists of a solution of an aluminum salt or Double salt (e.g. alum and the like) or the solution of another aluminum compound consists of water, acids or alkalis. This bath can also be used for viscose suitable fixing agents, such as. B. mineral acids or organic acids or neutral salts or alcohols or acid salts and the like, each on its own or in a mixture with one another, to add. Furthermore, other baths known from the practice of viscose fixation can also be used in these baths Substances such as carbohydrates, glycerine and the like can be added. Do you bring them fabrics treated with viscose without prior insolubilization of the viscose in the baths mentioned above, one must,

Claims (1)

as long as the baths do not contain additives which per se have the ability to fix viscose, the content of aluminum compounds set up so that it is sufficient to convert the viscose into the water-insoluble form. The time that the work item has to stay in the bath depends on how the amount of viscose on or in the work item is large; it also hangs depends on whether the viscose is not yet completely or due to deposits, steam, heat, etc. is partially made insoluble or fixed, and finally it depends on the content of the Bath of aluminum compounds and, if other fixatives are added to the bath were dependent on their nature and quantity. If you take it as a bath ζ. B. a 20 to 30 percent Aluminum sulfate solution without others ao additives and if you want one printed, coated or finished with viscose Fixing filled or coated material is sufficient if the bath is room temperature (you can also use warm or hot baths), usually 5 to 30 minutes, depending on the thickness of the layer. The work item will eventually remove it from the impurities it contains free, subjected to a thorough washing process in cold, warm or hot water. The present process does not only apply to those printed or printed with viscose alone coated or finished or filled or sized fabrics, but also on materials, those with viscose mixed with other binding, fixing, finishing or sizing agents or fillers such as kaolin, sugar, asbestos, tuff, etc. or with inorganic ones or organic pigments (e.g. paints, earth colors, mica, etc.) or with dyes or emollients (glycerine, sugars, fats and oils, Turkish red oil, soaps and the like) printed, coated, on their own or in a mixture, are finished or settled. Embodiment 1. A known way with raw viscose alone or in a mixture with a pigment, such as kaolin or mica, printed or coated or finished fabric after complete drying brought into a bath, which is composed as follows: 1000 parts by weight of water, 300 parts by weight of aluminum sulfate or 1000 parts by weight of water, 250 parts by weight of aluminum sulfate, 150 to 200 parts by weight of concentrated hydrochloric acid or any of the above Baths with an addition of 1000 parts by weight of glycerine or sugar. After the work has remained in the bath for 20 to 30 minutes, it is filled with water thoroughly washed and dried. Any subsequent treatments (such as calendering, embossing, etc.) are carried out in the usual way Way. Embodiment 2. “ ₀ As i, but with the difference that the work item is steamed for 3 minutes beforehand became. In the Bulletin de la Societeindustrie de Mulhouse, April 1911, p. 137, there is a method described, in which the viscose aluminate solutions and solutions of silica, boron or phosphoric acid salts are incorporated, whereupon the viscose by steaming or dry heat is fixed and insoluble salts of aluminum on the fiber to the Purpose of achieving damask effects. The aluminum connections are not used here to fix the viscose, so that the present process due to the in the Bulletin de la Societeindustrie de Mulhouse neither derived nor derived from the procedure described could be foreseen. CPa τ ε ν τ - A ν s ρ r υ c η: Process for treating with viscose (cellulose xanthogenate) printed or coated or finished or filled ⁹ ^ or sized substances, characterized in that they are exposed to the action of salts or double salts of aluminum or of aluminum compounds soluble in water, acids or alkalis for themselves or in the Exposure to mixture with other known fixatives.