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US 8,182,902 B2Granted
Labeled in-mold shaped article, and in-mold label
AssigneeYupo Corporation
InventorsHiroshi Koike, Seiichiro Iida, Masaaki Yamanaka
Life of this patent
Estimating the term…
Abstract
A labeled in-mold shaped article in which an in-mold label having a thermoplastic resin-containing substrate layer and a heat-seal layer that contains a heat-seal resin and a water-soluble binder is stuck to a shaped article and in which the in-mold label does not peel off from the shaped article even when the labeled in-mold shaped article is dipped in water at 40° C. for 4 days. The labeled in-mold shaped article satisfies both label adhesiveness and delabelability.
Claims24
A labeled in-mold shaped article comprising:
- an in-mold label having a substrate layer that includes a thermoplastic resin and a heat-seal layer that includes a heat-seal resin and a water-soluble binder;
- and
- a shaped article to which the in-mold label is stuck,
- wherein the in-mold label has adhesivity to the shaped article such that the in-mold label does not peel off from the shaped article when the labeled in-mold shaped article is dipped in water at 40° C. for 4 days, and the water-soluble binder comprises at least one substance selected from the group consisting of an ethyleneimine-based polymer, polyacrylamide, polyvinylacetamide, a dicyandiamide-based condensate, an epichlo-dimethylamine condensate, a dimethylamine-ethylene chloride condensate, aminomethyl-based polyacrylamide, polyvinylamine, polyvinylimidazoline, polyvinylbenzyltrimethylammonium chloride, and a polyvinylacetamide-vinylamine copolymer.
1 more element
An in-mold label which comprises:
- a substrate layer that includes a thermoplastic resin;
- and
- a heat-seal layer that includes a heat-seal resin and a water-soluble binder,
- wherein the in-mold label is configured such that, when an labeled in-mold shaped article having the in-mold label stuck to a shaped article is dipped in water at 40° C. for 4 days, the in-mold label does not peel off from the shaped article, and the water-soluble binder comprises at least one substance selected from the group consisting of an ethyleneimine-based polymer, polyacrylamide, polyvinylacetamide, a dicyandiamide-based condensate, an epichlo-dimethylamine condensate, a dimethylamine-ethylene chloride condensate, aminomethyl-based polyacrylamide, polyvinylamine, polyvinylimidazoline, polyvinylbenzyltrimethylammonium chloride, and a polyvinylacetamide-vinylamine copolymer.
1 more element
A labeled in-mold shaped article comprising:
- an in-mold label having a substrate layer that includes a thermoplastic resin and a heat-seal layer that includes a heat-seal resin and a water-soluble binder;
- and
- a shaped article to which the in-mold label is stuck,
- wherein the in-mold label has adhesivity to the shaped article such that the in-mold label does not peel off from the shaped article when the labeled in-mold shaped article is dipped in water at 40° C. for 4 days, and the water-soluble binder comprises a natural substance-derived binder, and the natural substance-derived binder is at least one substance selected from the group consisting of starch, modified starch, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, gelatin, pullulan, alginic acid, guar gum, locust bean gum, xanthane gum, pectin, carrageenan, gum arabic, gum ghatti, Kuraya gum, tragacanth gum, Psyllium sead gum, soybean polysaccharides, tamarind seed gum, tara gum, agar, furcelleran, glucomannan, microcrystalline cellulose, welan gum, curdlane, gellan gum, dextran, xanthane gum, chitin, and chitosan.
1 more element
Dependencies are inferred from the claim text.