DE397912C - Process for the production of cellulose wadding - Google Patents

Description

Process for the production of cellulose wadding. The well-known cellulose wadding is a type of paper-making process, influenced by creping, thin, continuous paper web.

It has been found that the absorbency, pliability and elasticity of the cellulose wadding can be increased many times over by providing the cellulose web, which results in the wadding, with artificial pores when it is formed, there are holes, gaps and other interruptions . - These pores are created in that the pulp, which is applied to the machine's sieve in a coherent layer or in flakes, is replaced by a mechanically acting disintegrating agent, e.g. B. rollers, conspicuous or sprayed water droplets or compressed air, which either from above or through the mesh. The sieve acts on the cellulose layer from below, is formed into fiber groups which, if necessary, can be dewatered before or after this treatment. The cellulose material lying on the sieve, which is now broken up into pores, is then treated with compressed air, which emerges from the holes or slots and acts on the cellulose material from the back of the sieve . Transferred to the drying device and, if necessary, subjected to creping.

The cellulose layer that is coherently or incoherently applied to the screen can also, without first affecting this sieve, with compressed air, the perio (Ii-, cli acts on them from the back of the sieve through the mas ports, in flakes blown onto the dryer. To these spots at the moment of meeting To influence the drying device in the form, it is sufficient that the nozzles or the compressed air exiting from the slots hits the rear side of the screen at an acute angle.

The thickness of the cellulose pulp web which has been broken down into pores can be within certain limits can be influenced by the fact that the feeder screen runs faster or slower as the drying device; in the first case a thicker one, in the second one thinner pulp web produced. There can also be two or more of the porous dismantled Pulp webs are applied one above the other to the drying device, under Circumstances such that one of the webs is creped beforehand.

The one fed into the drying device of the machine in undisassembled state Pulp web can also be on this before or after creping and before or after Drying with abrasive or abrasive means, e.g. B. rolling, in desired Dimensions are influenced porous.

If, when using pure cellulose, the process yields a product which is mainly suitable for treating wounds, then this can be achieved by using colored cellulose or by applying the procedures customary in the manufacture of colored paper on the paper machine. Produce products which have an attractive, lace-like effect. This effect can be further increased by transferring the cellulose material influenced by the pores to a textile fabric, textile fiber fleece - or - to a creped or tingecreped - usually cellulose wadding, which can be provided with an adhesive before application.

Claims (2)

PATENT APPLICATION: i. Process for the production of cellulose wadding, characterized in that a coherently or incoherently applied cellulose layer by allowing water drops and compressed air to act to form a tissue-like cellulose structure is loosened up. 2. The method according to claim i, thereby gekünnzeichziet, that an undivided cellulose layer from the back of the feeder sieve by means of periodically acting compressed air is decomposed, which the latter simultaneously inflates of the pulp structure thus dismantled is used on the drying device. il procedure according to claim i, characterized in that the connected or disconnected Fiber groups on a textile fabric, textile fiber fleece or an ordinary cellulose mat sheet be applied.