| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: method of preparing mercerised fibre involves treatment of cellulose fibre with a mercerising agent with large concentration of dissolved hemicellulose accumulated after continuous recycling of alkaline solutions or through addition of soluble carbohydrates, with concentration of alkali of approximately 5-15% of the total weight of the mixture. Temperature and period of time must be sufficient for preparation of mercerised cellulose fibres which form fibre fabric having air porosity equal to or greater than approximately 100 cubic feet in a minute per square foot, determined using the TAPPI T251 cm-85 at pressure of 125 Pa on hand moulding sheets 60 gcm. ^ EFFECT: high porosity of material. ^ 8 cl, 4 dwg, 2 tbl, 3 ex |
