Process for dyeing and printing sheets

Details Process for dyeing and printing sheets Process for dyeing and printing sheets

1977-10-31

1980-02-26

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 25A, 8 8, 8 12, 8 21C, 8 542, D06P 100

Patent

active

041904176

ABSTRACT:
The present invention is concerned with a process for dry printing or dyeing of sheets. A foam structure is printed or dyed and placed in contact with the sheet to be treated. The composite is subjected to sufficient heat and pressure to destroy the foam structure without significantly damaging the sheet. The result is the sheet surface now appears to carry the printing or dyeing. Among the suitable carrier foams are polyurethane foams. The process finds particular utility in coloring difficult to dye substrates such as cotton, fiber glass or asbestos fabrics with water insoluble dyes.

REFERENCES:
patent: 1965257 (1934-07-01), Poschel
patent: 2556078 (1951-06-01), Francis
patent: 2911280 (1959-11-01), Ciogna
patent: 3519456 (1970-07-01), Reed et al.
patent: 3782896 (1974-01-01), Defago et al.
patent: 3932129 (1975-01-01), Porter
patent: 4021591 (1977-05-01), De Vries et al.
patent: 4046936 (1977-09-01), Schachter
patent: 4056352 (1977-11-01), Mayer
patent: 4058644 (1977-11-01), De Vries et al.
patent: 4059471 (1977-11-01), Haigh
Venkataraman's, "The Chemistry of Synthetic Dyes", vol. VIII (Academic Press, 1978), pp. 191-220.

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