1504374 Creped tissue paper manufacture KIMBERLY - CLARK CORP 22 May 1975 [21 June 1974] 22334/75 Headings D1R, D1S, D2A and D2B A process for the manufacture of a single ply, creped, tissue paper comprises forming a paper web, wherein an outer fibrous layer extending up to about half the web thickness has stronger interfibre bonds than the section of the web between said layer and the other side of the web, and creping the web from a creping roll, the said outer layer being against the roll, so that it tends to shear away from the other side of the web along the plane of the intermediate section of the web and is reformed into a fine, creped structure to enhance bulk and provide a soft, fine creped surface. The creped tissue paper may have a basis weight of 10-401b/2880sq.ft. and both outer surfaces may be creped, the crepe on one surface being different from and independent in frequency and phase from that on the other surface. A machine for making the creped tissue paper comprises a forming section 21, and creping units 96, 98 and 108, 110. Alternatively, the second creping operation may be performed off-line. The web may be formed by an air-forming technique.
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