Process for printing adhesives, adhesive articles and printing equipment
First Claim
1. A process for transferring from a surface of a transfer tool a sticky material having a peel force of at least 0.1 N/cm onto an article, series of articles or web of articles, with reduced stringing, whereby the contact angle of the sticky material and the surface of the tool is more than 60°
- at the process temperature.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to a process for printing specific adhesives onto articles, such as absorbent articles or release paper, using a specific transfer tool and/or a specific adhesive, having a specific peel force, viscosity, elastic loss modulus, elastic modulus, surface energy and loss tangent modulus; the invention also relates to articles comprising the specific adhesives and to specific printing rolls.
135 Citations
20 Claims
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1. A process for transferring from a surface of a transfer tool a sticky material having a peel force of at least 0.1 N/cm onto an article, series of articles or web of articles, with reduced stringing, whereby the contact angle of the sticky material and the surface of the tool is more than 60°
- at the process temperature.
- View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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2. A process for transferring from a surface of a transfer tool a sticky material having a peel force of at least 0.1 N/cm onto an article, series of articles, or a web of articles, with reduced stringing, wherein the sticky material has:
-
a) a viscosity η
of less than 2500 mPa.s at process temperature; and
b) an elastic loss modulus G′
that increases from 10 to 10,000 Pa in less than 60°
C. temperature range. - View Dependent Claims (3)
-
-
15. An absorbent article, comprising a sticky material which has a peel force of at least 0.1 N/cm and
a) a viscosity η - of less than 2500 mPa.s at process temperature; and
b) an elastic loss modulus G′
, which increases from 10 to 10,000 Pa in less than 60°
C. temperature range. - View Dependent Claims (16, 18)
- of less than 2500 mPa.s at process temperature; and
-
17. An absorbent article comprising a sticky material which has a peel force of at least 0.1 N/cm and a surface energy σ
- at 20°
C. of less than 25 mJ/m2. - View Dependent Claims (19)
- at 20°
-
20. A gravure printing roll having a surface coating, wherein the surface coating comprises a polyfluorinated polymer.
Specification