Improved high speed embossing and adhesive printing process

Details Improved high speed embossing and adhesive printing process Improved high speed embossing and adhesive printing process

B - Operations, Transporting

05

D

B05D 1/28 (2006.01) B05D 5/10 (2006.01) B05D 7/04 (2006.01) B31F 1/07 (2006.01) C09J 7/02 (2006.01) D21H 25/00 (2006.01) C08G 65/00 (2006.01)

Patent

CA 2485313

The present invention provides a process comprising the steps of (a) applying less than about 0.1 grams per square meter (gsm) of a release agent to a transfer surface, wherein the release agent is selected such that a test sample of the release agent having a concentration at or above its critical surface tension concentration, has a surface tension of less than about 50 dyne/cm or forms a contact angle with the material of the transfer surface of less than about 120~ (b) applying an adhesive to the transfer surface; and (c) transferring the adhesive from the transfer surface to a material web. Preferred embodiments are provided where the transfer surface is metals, polymers, elastomers, ceramics, wood, or combinations thereof and the release agent has the formula : X-CF2O-(C2F4O)p-(CF2O)q-CF2-X. Additional embodiments are provided to continuous and intermittent processes.

Procédé consistant (a) à appliquer moins de 0,1 gramme par mètre carré (g/m2) d'un agent antiadhérent sur une surface de transfert, ledit agent antiadhérent étant choisi de manière telle qu'un échantillon d'essai de cet agent antiadhérent ayant une concentration égale ou supérieure à sa concentration de tension de surface critique possède une tension de surface inférieure à environ 50 dynes/cm ou forme un angle de contact avec la matière de la surface de transfert inférieur à environ 120·, (b) à appliquer un adhésif sur la surface de transfert et (c) à transférer l'adhésif de la surface de transfert à une bande de matière. Dans des modes de réalisation préférés, la surface de transfert est constituée de métaux, de polymères, d'élastomères, de céramique, de bois ou de combinaisons de ces matières et l'agent antiadhérent correspond à la formule X-CF¿2?O-(C¿2?F¿4?O)¿p?-(CF¿2?O)¿q?-CF¿2?-X. D'autres modes de réalisation concernent des processus continus et intermittents.

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