TH33972A - Soft tissue - Google Patents

Abstract

May make soft tissues that are dried by passing through hot weather. Which is soft enough to be used as a toilet tissue Excellent quality level without using a Yankees dryer. General functions of the Yankee machine In order to achieve the orientation of the machine and its horizontal direction, it is replaced by a track transfer. Wet end at different speeds And fabric designs for air-drying, respectively, are particularly effective when chemically and mechanically treated tissue fibers are made in one or more layers of the fabric. The tissue obtained is high (about 6 cubic centimeters per gram or higher) and low hardness.

Claims (2)

1. Soft single-layer toilet tissue Which consists of tissue that is dried by passing Hot air type that does not crease several layers. It has an air layer containing 80 percent wavy eucalyptus fibers by weight or more, and a fabric side layer containing 80 percent wavy eucalyptus fibers by weight or more. Swell (As defined here) from 9 to 20 cubic centimeters per gram. Hardness factor in MD (as defined here) is from 50 to 100 and elongation in the machine direction from 10 to 25% by weight. 2. Method of hot-air drying of tissue paper type. The non-wrinkling soft, consisting of: (a) aqueous suspension of 20 percent or greater paper-making fibers (b) mechanically performed with a water suspension in a channel curler at It is desirable at a temperature of 60 ° C (140 ° F) or higher to curl the fibers (c) dilute the aqueous suspension of the curled fibers to a thickness of approximately 0.5% or less and feed the substance. Suspended diluted into the tissue feeder box (d) Deposition of the water suspension of the paper fibers on the wadding cloth to make the wetted sheet (e) Removing the water from the wet fiber mat to a desired thickening effect. From 20 to 30 percent (f) wet wipes from wadded fabrics to slower-moving transfer fabrics. With two or more different speeds By using more than one transfer cloth (g), the sheets are transferred to the hot air drying fabric. By this method, the fibers It is visually rearranged to conform to the fabric surface for hot air drying and (h) non-pressurized drying to the final dry layer. Of claim 2, where the aqueous suspension was Mechanical with an input power of approximately 746 watts - day per ton (approx. 1 horsepower - day per ton) of dry fibers or more to curl the fibers 4. Method of either of the 2nd or 3rd claim. With the fibers being treated on the surface Chemical softener 5. Method of either of the 2nd or 4th claim. Where the curled fibers are eucalyptus fibers 6. Method of claim number 2 or 5, either Where the curled fibers are accumulated On a cloth, a sheet of fibers is made into one or two layers of a multilayer sheet. 7. Method of either claim 2 or 6. Where the fiber sheet consists of the inner layer One layer and two outer layers In which at least one outer layer consists of curled fibers. 8. Method of claim 7, where both outer layers consist of curled fibers. 9. Methods of claim 2 or 8. one Where all the fibers in the fiber sheet were It is performed by a mechanical method as previously defined in step (b) 1 0. Any of the 2nd or 9th Claim Method. Where the curled fibers are accumulated On the fabric, we make the fiber sheet as the air side layer and the fabric side layer of the fiber 1 1. Any method of claim 2 or 10 Where the drying process without pressure is the hot air drying process 1 2. The soft tissue product of claim 1, which is obtained through the process of claim 2 to 11.