EP0217672A2
Expired / Lapsed
EP
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Methods of making paper webs and printed labels coated with remoistenable adhesives
Assignee: Samuel Jones and Co Ltd
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Filing: 1986-10-03
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Granted: —
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Expires: 2006-10-03
Abstract
Abstract Paper coated uniformly with discrete dots of remoistenable adhesive, especially based on starch or polyvinyl alcohol, has curl stability comparable with particle gum coated papers. Preferably, the dots are less than 0.3 mm in diameter and typically spaced 0.5 to 1 mm (centres) apart. The product is made by screen coating dots of aqueous adhesive mix onto base paper.
Inventors
- 👤 Peter Sinclair
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 12:46
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/30; C09J7/32; C09J7/20; C09J7/21; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24934; Y10T428/25; Y10T428/252; Y10T428/27; Y10T428/273; Y10T428/28; Y10T428/2813; Y10T428/283; Y10T428/2852; Y10T428/2865; Y10T428/2878; Y10T428/2891
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
34 words
A paper web coated uniformly over one surface thereof with a discontinuous coating of a remoistenable adhesive in the form of discrete dots of the adhesive deposited directly onto and adherent to the paper.
Claim 2
Dependent Claim
34 words
A paper web coated uniformly over one surface thereof with a discontinuous coating of a remoistenable adhesive in the form of discrete dots of the adhesive deposited directly onto and adherent to the paper.
Claim 3
Dependent Claim
19 words
Coated paper as claimed in claim 1 wherein the discrete dots of the remoistenable adhesive form a regular array.
Claim 4
Dependent Claim
23 words
Coated paper as claimed in claim 2 wherein the regular array is a square array, an offset square array or a hexagonal array.
Claim 5
Dependent Claim
28 words
Coated paper as claimed in any one of claims 1 to 3 wherein the dots of remoistenable adhesive have an average diameter of from 0.05 to 0.3 mm.
Claim 6
Dependent Claim
23 words
Coated paper as claimed in any one of claims 1 to 4 wherein the dots of remoistenable adhesive are circular, hexagonal or square.
Claim 7
Dependent Claim
30 words
Coated paper as claimed in any one of claims 1 to 5 wherein the remoistenable adhesive is based on starch, a modified starch or a starch derivative or polyvinyl alcohol.
Claim 8
Dependent Claim
33 words
Coated paper as claimed in claim 6 wherein the adhesive is based on starch, a modified starch or a derivative and is coated at a coatweight of from 10 to 15 g m⁻².
Claim 9
Dependent Claim
28 words
Coated paper as claimed in claim 6 wherein the adhesive is based on polyvinyl alcohol and is coated at a coatweight of from 8 to 14 g m-2.
Claim 10
Dependent Claim
29 words
Coated paper as claimed in any one of claims 1 to 8 wherein the adhesive includes from 30 to 70% by weight of the adhesive of a hydrophilic clay.
Claim 11
Dependent Claim
30 words
Coated paper as claimed in any one of claims 1 to 9 having an image printed thereon on either or both the adhesive coated side or the non-adhesive coated side.
Claim 12
Independent Claim
69 words
A method of making a paper web coated uniformly over one surface thereof with a discontinuous coating of a remoistenable adhesive, which comprises screen coating an aqueous coating mix of the remoistenable adhesive through a screen or screen/stencil combination which provides image areas in the form of discrete dots, whereby the adhesive is coated onto the substrate as discrete dots adhered to the substrate and drying the coated substrate.
Claim 13
Independent Claim
69 words
A method of making a paper web coated uniformly over one surface thereof with a discontinuous coating of a remoistenable adhesive, which comprises screen coating an aqueous coating mix of the remoistenable adhesive through a screen or screen/stencil combination which provides image areas in the form of discrete dots, whereby the adhesive is coated onto the substrate as discrete dots adhered to the substrate and drying the coated substrate.
Claim 14
Independent Claim
72 words
A method of making a printed label carrying a coating of a remoistenable adhesive which method comprises screen coating an aqueous coating mix of the remoistenable adhesive through a screen or screen/stencil combination which provides image areas in the form of discrete dots, whereby the adhesive is coated onto the substrate as discrete dots adhered to the substrate and drying the coated substrate and subsequently printing the substrate to provide the label.
Claim 15
Independent Claim
72 words
A method of making a printed label carrying a coating of a remoistenable adhesive which method comprises screen coating an aqueous coating mix of the remoistenable adhesive through a screen or screen/stencil combination which provides image areas in the form of discrete dots, whereby the adhesive is coated onto the substrate as discrete dots adhered to the substrate and drying the coated substrate and subsequently printing the substrate to provide the label.
References Cited (Backward Citations)
No citation records indexed.
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