| 摘要 |
<p>There is disclosed a method of manufacturing a tubing, or casing to be used in the production of sausages, which tubing comprises a paper base material of long-fibred manila hemp having an air-dry weight of no more than 15 g/m<2>, which manila hemp paper is wet-strengthened by synthetic resin(s) and /or viscose and synthetic resin(s), the method comprising the steps of forming the wet-strengthened paper into tubing, impregnating said tubing by viscose which is presented to the outer surface only of the said tubing by means of a substantially annular gap of a single die whilst the inner surface of the said tubing is temporarily supported by support means, passing the tube through one or more acid and salt baths so as to coagulate the viscose and thereby regenerate the viscose into cellulose in such a manner that the fibres of the paper are embedded and bonded with the regenerated cellulose, and plasticizing the tubing. <IMAGE></p> |
