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Window envelopes with optical character readable window film patches

A windowed envelope and patch technology, applied to optical components, postal envelopes, household appliances, etc., can solve problems affecting the failure rate of MERLIN tests

Inactive Publication Date: 2008-06-25
TRANSILWRAP COMPNAY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Windowed envelope or patch film haze also affects the MERLIN test failure rate when the haze reaches a level where the barcode reader cannot accurately distinguish adjacent codes in the barcode

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0045] Preparation of Windowed Envelopes

[0046] Unwind window film from roll. The adhesive is applied to the film or the paper to which the film will be bonded. The film was cut into rectangles, and the rectangles were transferred to paper by a vacuum patch transfer cylinder. The resulting paper / adhesive / film structure is transferred to subsequent converting operations.

Embodiment 12

[0056] Comparative Example A was repeated, but using the 100% by weight HIPS-made film used in Comparative Example B in place of the windowed envelope patch sections. Method A and varying compositions are shown in Table I below. The 45° gloss and haze and MHCFD percent failure data for the films are summarized in Table I below.

Embodiment 13-15

[0058] Comparative Example B was repeated, but varying the composition of each Example as shown in Table I below. As with Comparative Example A, each of Examples 13-15 contained a 1% PTFE concentrate. The 45° gloss and haze and MHCFD percent failure data for the films are summarized in Table I below.

[0059] Table I

[0060] Example

[0061]The data presented in Table I illustrate two points. First, rubber-modified VAP (eg, rubber-modified polystyrene) affects the optical properties of the film, such as haze and gloss. Second, the type and amount of rubber-modified VAP used can be varied in order to obtain a windowed envelope film with the desired balance of haze % and 45° gloss.

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PUM

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Abstract

A windowed envelope comprising a window patch formed from a low gloss polymer film based on a rubber-modified vinyl aromatic polymer or a rubber-modified vinyl aromatic polymer with vinyl Blends of aromatic polymers. The film may be a monolayer film or the outer layer of a multilayer film. The film optionally includes an inorganic coating applied to either surface of the film when the film is a monolayer film, or applied to the outer layer of a multilayer film on the outermost surface of the membrane. When the inorganic coating is applied to the surface of the membrane, the membrane need not comprise a rubber-modified vinyl aromatic polymer, and may be based solely on vinyl aromatic polymer.

Description

technical field [0001] The present invention relates generally to window envelopes and window film patches, or to sealing or sealing said window envelope openings, but allows personal and optical character readers (such as the U.S. The automated mail sorting system used by the Postal Service (USPS) sees or reads the overlay of optionally printed information contained within the windowed envelope. In particular, the present invention relates to windowed envelopes having a window patch that allows an optical character reader to read said information during the windowed envelope process, even when the window patch is untensioned and / or substantially free of There was also no significant increase in error rates when it came to wrinkles or moires that obscured printed information (such as addresses or barcodes) covered by window patches. The present invention more particularly relates to said windowed envelopes comprising a window film patch formed from a low gloss biaxially orien...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D27/04C08L51/00C09D151/00
CPCC08L51/04C09D151/003C09D151/04C08L51/003B32B27/08C08L2666/02C08L2666/04B65D27/04C08L51/00C09D151/00B32B2325/00B32B2307/412B32B27/302B32B2551/00B32B2307/518
Inventor 周伟俊W·R·拉佛莱特R·M·帕特尔S·F·哈恩A·M·盖布尼克C·A·兰伯特
Owner TRANSILWRAP COMPNAY INC