Claims
- 1. A self-adhesive sheet produced by (a) providing (i) a stamp member having a water-soluble polymer layer on its reverse side which layer is prepared by applying a coating composition comprising water-soluble polymer and at least one pigment in an amount of 5 to 80 wt % on the basis of the total solids in the water-soluble polymer layer onto the reverse face on the base member for stamps, and (ii) a release member having a pressure sensitive adhesive layer prepared by applying a coating composition comprising an emulsion-type acrylic pressure sensitive adhesive whose principal component has a glass transition temperature which is lower than -35.degree. C. and is composed of monomers containing 0.2 to 4.0 wt % of ethylenic unsaturated carboxylic acid onto the surface of a release base member; (b) superposing said stamp member (i) through its water-soluble polymer layer onto the pressure sensitive adhesive layer of said release member (ii); and (c) subjecting the thus obtained laminate obtained to aging.
- 2. A self-adhesive sheet according to claim 1, wherein said stamp member contains postage stamps.
- 3. A self-adhesive sheet according to claim 1, wherein said water-soluble polymer layer has a coating weight of 2 to 20 g/m.sup.2 on dry basis.
- 4. A self-adhesive sheet according to claim 3, wherein said stamp member contains postage stamps.
- 5. A self-adhesive sheet according to claim 1, wherein said pigment contained in said water-soluble polymer layer is a member selected from the group consisting of calcium carbonate, kaolin and magnesium carbonate.
- 6. A self-adhesive sheet according to claim 5, wherein said stamp member contains postage stamps.
- 7. A self-adhesive sheet according to claim 5, wherein said water-soluble polymer layer has a coating weight of 2 to 20 g/m.sup.2 on dry basis.
- 8. A self-adhesive sheet according to claim 7, wherein said stamp member contains postage stamps.
- 9. A self-adhesive sheet produced by (a) providing (i) a stamp member having a water-soluble polymer layer on its reverse side which layer is prepared by applying a coating composition comprising water-soluble polymer and at least one pigment in an amount of 5 to 80 wt % on the basis of the total solids in the water-soluble polymer layer onto the reverse face of the base member for stamps, and (ii) a release member having a pressure sensitive adhesive layer prepared by applying a coating composition comprising an emulsion-type acrylic pressure sensitive adhesive whose principal component has a glass transition which is lower than -35.degree. C. and produced by copolymerizing 0.2 to 4.0 wt % of ethylenic unsaturated carboxylic acid monomer, 55 to 95 wt % of vinyl monomer having an alkyl group with a carbon number of 4 or more, 4.8 to 44.8 wt % of vinyl monomer having an alkyl group with a carbon number of below 3, and 0 to 20 wt % of other monomers onto the surface of a release base member; (b) superposing said stamp member (i) through its water-soluble polymer layer onto the pressure sensitive adhesive layer of said release member (ii); and (c) subjecting the thus obtained laminate obtained to aging.
- 10. A self-adhesive sheet according to claim 9, wherein said stamp member contains postage stamps.
- 11. A self-adhesive sheet according to claim 9, wherein said water-soluble polymer layer has a coating weight of 2 to 20 g/m.sup.2 on dry basis.
- 12. A self-adhesive sheet according to claim 11, wherein said stamp member contains postage stamps.
- 13. A self-adhesive sheet according to claim 9, wherein said pigment contained in said water-soluble polymer layer is a member selected from the group consisting of calcium carbonate, kaolin and magnesium carbonate.
- 14. A self-adhesive sheet according to claim 13, wherein said stamp member contains postage stamps.
- 15. A self-adhesive sheet according to claim 13, wherein said water-soluble polymer layer has a coating weight of 2 to 20 g/m.sup.2 on dry basis.
- 16. A self-adhesive sheet according to claim 15, wherein said stamp member contains postage stamp.
Priority Claims (2)
Number |
Date |
Country |
Kind |
62-319297 |
Dec 1987 |
JPX |
|
63-20219 |
Jan 1988 |
JPX |
|
Parent Case Info
This application is a continuation of now abandoned application, Ser. No. 07/284,115 filed on Dec. 14, 1988, now abandoned.
US Referenced Citations (7)
Continuations (1)
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Number |
Date |
Country |
Parent |
284115 |
Dec 1988 |
|