Back to results
US 7,462,202 B2Granted
Method to remove foxing stains from paper & celluloid items
OwnerJeffrey Lee Kaplan, Robert Namiatinventors
Life of this patent
Estimating the term…
Abstract
A method to safely remove foxing stains from paper and celluloid items using distilled water, sodium hypochlorite, acetic acid, sodium bicarbonate and glue size.
Claims1
A method of removing foxing stains from paper and celluloid items comprising the steps of:
- (a) soaking the paper or celluloid item completely in a warm bath of distilled water in soaking utensils which are conventional trays which can be purchased and easily understood by one having ordinary skill in the art;
- and
- (b) removing the paper or celluloid item and blotting all excess water;
- and
- (c) soaking the paper or celluloid item completely in a warm bath of sodium hypochlorite also commonly known as household bleach with less than five percent concentration (5%) in soaking utensils which are conventional trays which can be purchased and easily understood by one having ordinary skill in the art;
- and
- (d) soaking and rinsing the paper or celluloid item completely in a warm bath of distilled water in soaking utensils which are conventional trays which can be purchased and easily understood by one having ordinary skill in the art;
- and
- (e) removing the paper or celluloid item and blotting all excess water, and
- (f) soaking the paper or celluloid item completely in a warm bath of acetic acid also commonly known as vinegar of no less than seventy-five percent concentration (75%);
- and
- (g) soaking the paper or celluloid item completely in a bath of cold distilled water in soaking utensils which are conventional trays which can be purchased and easily understood by one having ordinary skill in the art;
- and
- (h) removing the paper or celluloid item and blotting all excess water;
- and
- (i) soaking the paper or celluloid item completely in bath of sodium bicarbonate also commonly known as baking soda and distilled water in soaking utensils which are conventional trays which can be purchased and easily understood by one having ordinary skill in the art;
- and
- (j) soaking and rinsing the paper or celluloid item completely with distilled room temperature water in soaking utensils which are conventional trays which can be purchased and easily understood by one having ordinary skill in the art;
- and
- (k) removing the paper or celluloid item and blotting all excess water;
- and
- (l) soaking the paper or celluloid item completely in bath of glue size in soaking utensils which are conventional trays which can be purchased and easily understood by one having ordinary skill in the art;
- and
- (m) soaking and rinsing the paper or celluloid item completely in a bath of cold distilled water in soaking utensils which are conventional trays which can be purchased and easily understood by one having ordinary skill in the art;
- and
- (n) removing the paper or celluloid item and blotting all excess water;
- and
- (o) air drying the paper or celluloid item without the use of a heat blower.
25 more elements
Dependencies are inferred from the claim text.