| 摘要 |
Soft collagen contact lenses are prepd. by blending defatted fibrous collagen and defatted, dissolved collagen and crosslinking them to give aq. collagen gels contg. 1.0-30.0 wt.% collagen. Fibrous collagen and soluble collagen are obtd. from animal tissues. Soluble collagen is collected by acid or base extraction, esp. enzyme extraction, whereas fibrous collagen is recovered by centrifugation of aq. dispersed collagen.
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