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Method for applying a pressure sensitive shrink label to an article

A label and product technology, applied in the field of pressure-sensitive shrink labels, can solve the problems of high cost, excessive waste, label defects, etc.

Inactive Publication Date: 2011-05-11
AVERY DENNISON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during labeling operations on simple or complex shaped bottles, label defects can occur during or after application
These misused labels result in excessive waste or potentially costly additional processing steps

Method used

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  • Method for applying a pressure sensitive shrink label to an article
  • Method for applying a pressure sensitive shrink label to an article
  • Method for applying a pressure sensitive shrink label to an article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0119] The pressure sensitive shrink labels were manufactured from 3 mil thick low density polyethylene multilayer shrink film named CorrTuff from Sealed Air. The film was coated with acrylic emulsion adhesive S692N from Avery Dennison. The adhesive was supported on cellophane BG-40, a silicone coated release liner. The labels are oversized, measuring approximately 5 by 3.5 inches, which is 20% larger than the industry standard recommended label size for the bottle to which the label is applied.

[0120] Toric 15 oz Johnson & Johnson Baby Lotion bottles were filled with water, capped, and processed with a Label-Aire 9000 Series labeling machine at 100 bottles per minute (BPM). The labeling machine is equipped with dual feed screws, matching speed upper and lower belts, Label-Aire2115-CD labeling head, high torque stepper motor drive. Presses down on the label with a walking beam type wiper, providing direct, center-out force to draw trapped air under the label and resulting ...

Embodiment 2

[0123] According to the method described in Example 1, a pressure sensitive shrink label made of a 2 mil thick polypropylene multilayer shrink film designated CZPA 200 from Innovia was applied to a bottle with a toric surface. After the initial rubbing, medium-sized protrusions were formed. The bottles and labels were heated to 100°C with high velocity hot air. The protrusions shrink after heating and are easy to wipe flat. The protrusions do not reappear after aging.

Embodiment 3

[0125] According to the method described in Example 1, a pressure sensitive shrink label made from a 2 mil thick polylactic acid monolayer shrink film designated EARTHFIRST PLA from Plastic Suppliers was applied to a bottle with a toric surface. After the initial rubbing, medium-sized protrusions were formed. The bottles and labels were heated to 70°C with high velocity hot air. The protrusions shrink after heating and are easy to wipe flat. The protrusions do not reappear after aging.

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Abstract

A method of applying a label (12) to an article (10), the method comprising : - providing an article having a surface comprising at least one compound curve (16); - providing a label comprising (i) a heat shrinkable film having an inner surface and an outer surface; and (ii) a layer of pressure sensitive adhesive on the inner surface of the heat shrinkable film, wherein the label has a first edge and a contact region,- - contacting the adhesive layer in the contact region of the label with the article; - and applying heat and pressure simultaneously to the label in a direction from the contact region to the first edge such that the first edge of the label adheres to the article and the label shrinks to conform to the compound curve of the article, wherein the heat and pressure are applied by at least one hot air knife assembly comprising a source of heated air, a flow control mechanism and one or more hot air slots.

Description

[0001] Cross reference to related applications [0002] This application claims the benefit of U.S. Patent Application No. 12 / 237,761, filed September 25, 2008, which is a continuation-in-part of PCT / US08 / 59397, filed April 4, 2008, which claims the 2007 Priority to US Provisional Application Serial No. 60 / 910,282, filed April 5, and US Provisional Application Serial No. 60 / 938,019, filed May 15, 2007, the entire disclosures of which are incorporated herein by reference. technical field [0003] This invention relates to pressure sensitive shrink labels. More particularly, the present invention relates to pressure sensitive labels having excellent conformability to containers having complex shapes and methods of applying such labels. Background technique [0004] It is common practice to apply labels to containers or bottles to provide information such as the supplier of the container or the contents of the container. Such containers and bottles can come in a variety of sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65C3/08B65C9/18B65C9/24B65C9/28
CPCB65C3/08B65C9/1865B65C9/24B65C9/28
Inventor R·A·普瑞威提J·P·劳伦斯R·D·帕斯托C·W·珀特M·J·拉考范W·L·考恩
Owner AVERY DENNISON CORP
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