发明名称 |
Method for coating a web with wet ink thereon |
摘要 |
A convertible coating apparatus provides one or two side coating of a web having wet ink thereon to permit both printing and coating to be carried out prior to any drying operation. The apparatus includes a coating applicator roller in contact with a relatively hard back-up roller. The coating applicator roller is supplied with coating in both the one and two side operations while the back-up roller is supplied with coating only in the two side operation. Water is supplied to the back-up roller in the one side operation and the back-up roller has a hydrophilic surface which, when supplied with water, repels the wet ink on the web passing through the couple and prevents smudging and offset of the ink to the back-up roller. A method of carrying out the one and two side coating is also disclosed. A turning roller is also provided which guides the freshly inked web between inking operations without smudging the ink on the web.
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申请公布号 |
US4961964(A) |
申请公布日期 |
1990.10.09 |
申请号 |
US19890313733 |
申请日期 |
1989.02.22 |
申请人 |
EPIC PRODUCTS INTERNATIONAL CORP. |
发明人 |
DAHLGREN, HARVEY W. |
分类号 |
B05C1/08;B05C9/04;B05C9/08;B41M7/00 |
主分类号 |
B05C1/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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