| 摘要 |
<p>Method of producing a cotton wool sheet, according to which the raw cotton is subjected to preliminary beating and opening-up operations in such a manner as to obtain cotton flock, this flock is conducted to perforated cylinders or belts to form a fluffy sheet, this sheet is conducted to an impregnating bath such in a manner as to obtain a more compact sheet, this sheet is dried, and is wound onto a perforated hollow cylinder in such a manner that there is obtained a spool which is introduced into an autoclave, where it is subjected to scalding and bleaching operations, characterised in that the wetting bath is acidified and in that, before the sheet is wound on a perforated hollow cylinder, it is subjected to a fluid pretreatment by sending a series of jets of a rinsing fluid through it.</p> |
