Claims
- 1. A method for making a unitary microporous direct inking platen nylon body having a porosity between from about 5% to about 15% and an integral microporous outer skin on the order of 1/5000 inch in thickness, the micropores being sufficient to transport an oil based liquid throughout said body by capillary action, comprising the steps of:
- forming a particulate blend of thirty percent nominal eighty mesh nylon 6, 6 with 70 percent nominal 20 mesh nylon 6, 6; and
- compression molding the blend to achieve particle bonding by pressing said blend for more than ten but less than 20 minutes at a temperature from about 350.degree. F to about 420.degree. F and at a pressure on the blend during molding from about 10,000 psia to about 15,000 psia, thereby forming a unitary, microporous body having an integral microporous outer skin on the order of 1/5000 inch in thickness.
Parent Case Info
This is a division of application Ser. No. 438,113 filed Jan. 30, 1974 now U.S. Pat. No. 3,898,360, a continuation of Ser. No. 220,956 filed Jan. 26, 1972 now abandoned.
US Referenced Citations (4)
Divisions (1)
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Number |
Date |
Country |
Parent |
438113 |
Jan 1974 |
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