Multi-layer dry paint decorative laminate having discoloration prevention barrier

Inactive Publication Date: 2005-09-08
THE PROCTER & GAMBNE CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009] Briefly, one embodiment of the invention comprises a multi-layer laminate for providing a layer of color to a painted surface. The laminate includes a decorative dry paint layer and a pressure-sensitive adhesive layer for adhering the laminate to the painted surface. The laminate includes o

Problems solved by technology

The familiar steps of applying wallpaper paste to conventional wallpaper or immersing pre-pasted wallpaper in water are time consuming, messy and require additional cleanup.
For ex

Method used

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  • Multi-layer dry paint decorative laminate having discoloration prevention barrier
  • Multi-layer dry paint decorative laminate having discoloration prevention barrier
  • Multi-layer dry paint decorative laminate having discoloration prevention barrier

Examples

Experimental program
Comparison scheme
Effect test

Example

EXAMPLE 1

[0095] A PET liner is coated on one side with a silicone release coating corresponding to the adhesive release coat layer described above. The thickness of the silicone coated liner is 0.92 mil and comprises Mitsubishi 92 gauge SLK.

[0096] The matte release coat is applied to the other side of the release liner using gravure at a coat weight of 4.5 to 5.5 gsm. The formulation for the matte release coat is as follows (with all numerical values in parts by weight): ComponentPartsMethyl isobutyl ketone (MibK)53.47Isopropanol6.49Lankyd 13-1245 (product of Akzo7.21Chemical, an acrylic modified alkyd)VAGH (product of Union Carbide, hydroxy8.72modified polyvinyl chloride / polyvinylacetate copolymerEFKA 5055 (a carboxylic acid ester1.10dispersing agent)Microtalc MP 15-38 (Barretts Minerals)23.02Cymel 303 (Cytec melamine resin)7.45Byk 451 (Byk Chemie blocked acid catalyst)3.50

[0097] In preparing the release coat material the base materials (VAGH, alkyd and talc) are compounded in a...

Example

EXAMPLE 2

[0105] An alternative embodiment of the matte release coat comprises the following formulation in which a dispersing agent is omitted and the catalyst is changed to an unblocked catalyst. (All numerical values are in parts by weight.) ComponentPartsMibK50.54Isopropanol7.84Lankyd 13-12458.93VAGH10.68Microtale MP 15-3822.00Cymel 3036.80Cycat 4040 (paratoluene sulfonic acid)2.00

[0106] Adjustments may be made to release properties and gloss in this release coat formulation by optionally adding the following intermediate formulations in which the matte intermediate is used to adjust gloss down and the vehicle intermediate is used to adjust gloss upward. Matte Intermediate ComponentPartsMibK28.05Lankyd 13-12454.05VAGH4.90Dispersing agent18.00Microtalc MP 15-3845.00

[0107] The dispersing agent comprises 10 parts by weight EFKA 5055 and 90 parts by weight MibK. Vehicle Intermediate ComponentPartsMibK64.83Isopropanol13.00Lankyd 13-124510.03VAGH12.14

Example

EXAMPLE 3

[0108] Test panels were prepared and tested for color shift, comparing color shift for: (1) wall films similar to Example 1 containing a barrier coat and (2) similar wall films in the absence of a barrier coat. The test films were applied to a medium yellow (Hansa Yellow 10G and Dalamar Yellow PY74) painted surface and subjected to accelerated aging. The test films were measured for discoloration (color shift) caused by migration of azo-type color constituents that passed from the painted surface through the PSA layer to the color layer of the test sample. The test panels were prepared using a dry paint color layer containing a plasticized vinyl-based paint layer containing a dispersed white pigment. The S-3506 PSA was applied to the color layer. The test panels included a white wall film with 2.5 gsm EVOH / urethane barrier, a white wall film with 6.5 gsm EVOH / urethane barrier, and a white wall film with no barrier layer. The modified EVOH barrier layers were thermoplastic....

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PUM

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Abstract

A decorative dry paint wall film includes a layer of dry paint, a pressure-sensitive adhesive layer on one side of the dry paint layer, and a release liner in releasable contact with the dry paint layer on a side opposite from the pressure-sensitive adhesive (PSA). The release liner has a matte release coat layer that contacts the dry paint layer. The release liner is released from the dry paint layer after the PSA side is attached to a wall. The matte release coat transfers a matte finish to the dry paint layer when the release liner is removed. The wall film includes a barrier layer to protect against significant discoloration of the color in the dry paint layer caused by migration of azo-type pigments from a painted wall surface. The barrier layer in one embodiment comprises a dry emulsion containing ethylene-vinyl alcohol and a dispersed polymeric material which in one embodiment comprises a urethane material.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation-in-part of application Ser. No. 10 / 779,528, filed Feb. 13, 2004, which is a continuation-in-part of application Ser. No. 10 / 457,826, filed Jun. 9, 2003. These applications are incorporated herein in their entirety by this reference.FIELD OF THE INVENTION [0002] This invention relates to dry paint transfer laminates, and more particularly, to decorative laminates or wall films for applying a layer of color to a wall surface. The wall film of this invention resists discoloration caused by pigments or dyes migrating from a painted wall surface into the color-producing layers of the wall film. BACKGROUND [0003] Thin sheets of decorative multi-layer dry paint laminates or wall films may be adhesively applied to a painted surface by a bonding layer, typically adhesive, for applying color to the surface. The wall film of this invention provides an alternative to conventional wallpaper. The familiar steps of a...

Claims

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Application Information

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IPC IPC(8): B32B9/00C09J7/50
CPCB32B7/12Y10S428/904B32B27/14B32B27/306B32B2260/025B32B2260/046B32B2274/00B32B2307/4026B32B2607/02B44C1/16C09J7/0257C09J2205/114C09J2423/001C09J2429/001E04F13/002B32B27/08Y10T428/1467Y10T428/28Y10T428/1486Y10T428/2839Y10T428/1405Y10T428/2848Y10T428/14C09J7/50C09J2301/414
Inventor SHIH, FRANK YEN-JERFAHLSING, ROGER A.KAMINSKI, ANNEKE MARGARETFONTANA, JOHN VINCENTZEIK, DOUGLAS BRUCEJAMES, MARTIN IAN
Owner THE PROCTER & GAMBNE CO
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