Stock material or miscellaneous articles – Layer or component removable to expose adhesive – Dissimilar adhesives
Patent
1986-06-05
1987-10-06
Buffalow, Edith
Stock material or miscellaneous articles
Layer or component removable to expose adhesive
Dissimilar adhesives
428343, 428350, 100 34, A61F 1302
Patent
active
046982485
ABSTRACT:
Adhesive coated sheet material particularly adapted for self-releasable adhesive tapes, labels, novelty stickers or the like. The invention comprises the use of a coated fibrous substrate in combination with a water moistenable, heat activated or solvent activated coating wherein the adhesive coating is applied against a coated side of the substrate. The result is an adhesive sheet material that, when bonded to itself by applying the adhesive against the opposite side, may be readily peeled apart by delamination of the coating on the base sheet. This combination provides a highly effective yet very economical bander for coiled materials such as rolls of stamps, or for stacks of currency, and the like. Preferred embodiments include the use of a clay coated Kraft stock base web in combination with a water moistenable adhesive formulation. This provides excellent bonding results and delamination with the base sheet essentially intact. Other embodiments include the use of heat activated or solvent activated adhesives, as well as the use of other base sheets such as latex saturated webs and nonwoven base sheets, for example. In each case the coating for the base sheet and the adhesive are selected from combinations wherein the coating has a greater affinity for the adhesive than for the base web, at least in substantial part, to provide the desired delamination. The benefits will be obtained in the construction where the adhesive is applied to a coated side of the base web and also where the adhesive is applied to the opposite side but, in use, contacts the coated side. It is also important that the base sheet stock have sufficient strength properties for the intended use.
REFERENCES:
patent: 2848105 (1958-08-01), Bartell et al.
patent: 3076588 (1963-02-01), Conway et al.
patent: 3425968 (1969-02-01), Reiling
patent: 3531316 (1970-09-01), Sternasty
patent: 4258092 (1981-03-01), Labor
patent: 4304815 (1981-12-01), Cugasi
patent: 4398985 (1983-08-01), Eagon
Gallagher Nicholas D.
James Richard A.
Sternasty Richard S.
Buffalow Edith
Herrick William D.
Kimberly-Clark Corporation
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