摘要:
A process for preparing an alginate rope, which process comprises the steps of: (a) extruding an aqueous solution of a water soluble alginate into a coagulation bath; (b) contacting the extruded water soluble alginate with a source of a cation capable of forming a water insoluble alginate salt so as to produce a tow of water insoluble alginate fibers; (c) twisting the water insoluble alginate fibers of the tow; and (d) stretching the fibers up to 250% of their original length. The alginate rope prepared according to the process of the invention may be used as a surgical pack material or in the treatment of cavity wounds.
摘要:
Alginate fabrics have, in conjuction with charcoal cloth, been used in wound dressings for malodorous wounds and there are commercial examples of such wound dressings. A problem associated with known alginate wound dressings which employ charcoal cloth is that the dressing is a relatively rigid structure. Furthermore, the known dressings have been constrained to the use of charcoal cloth which limits the absorptive properties thereof for wound odorants due to the fixed surface area of the cloth. We have now developed an alginate fabric which alleviates the above problems, and there is provided by the present invention an alginate fabric having particulate charcoal dispersed therein.
摘要:
Highly absorbent alginate fibers are described which have use in the manufacture of dressings. The fibers and dressings described are highly swellable while also being soluble, rather than just being soluble. This is a considerable advantage for use in environments where high absorption coupled with biodegradability is desired, for example, in wound dressings such as dressings for ulcers or burns.
摘要:
The invention is a wound dressing prepared from alginate fibers which have good structural integrity, whereby layers are firmly joined together, e.g. by stitching or calendering at a plurality of points to produce a composite fabric.