Paper making and fiber liberation – Processes and products – Synthetic fiber
Patent
1991-05-13
1992-06-16
Chin, Peter
Paper making and fiber liberation
Processes and products
Synthetic fiber
1621572, 1621573, 1621574, 1621811, 1621812, 1621813, 1621816, 1621817, 162182, D21H 1767
Patent
active
051222302
ABSTRACT:
A hydrophilic fibers modified with a substantially water-insoluble inorganic compound is produced by immersing hydrophilic fibers, for example, pulp fibers, in an aqueous solution of a water-soluble inorganic compound (a) which is precipitated when brought into contact with a precipitant (b), adjusting the amount of the aqueous solution impregnated in the hydrophilic fibers to 60 to 400% based on the weight of the hydrophilic fibers, and bringing the hydrophilic fibers with the aqueous solution of the inorganic compound (a) into contact with the precipitant in the state of a gas or aqueous solution to thereby cause the resultant substantially water-insoluble compound to be precipitated in and fixed to the hydrophilic fibers.
REFERENCES:
patent: 113454 (1871-04-01), Schmidt
patent: 670511 (1901-03-01), Friese-Greene
patent: 2399982 (1946-05-01), Britt
patent: 2583548 (1952-01-01), Craig
patent: 2599091 (1952-06-01), Craig
patent: 2599093 (1952-06-01), Craig
patent: 2599094 (1952-06-01), Craig
patent: 2709653 (1955-05-01), Marshall et al.
patent: 2823997 (1958-02-01), Craig
patent: 3029181 (1962-04-01), Thomsen
patent: 3044924 (1962-07-01), Schur
Chin Peter
Oji Paper Co. Ltd.
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