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Coated polymeric film

A polymer film, polymer technology, applied in the direction of film/sheet adhesive, coating, thin material processing, etc., can solve the problem of blurred printing surface texture, reduce inventory, improve performance, and improve materials The effect of utilization and productivity

Inactive Publication Date: 2009-05-13
JINDAL FILMS AMERICAS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, reverse printing blurs the texture of the printed surface

Method used

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  • Coated polymeric film
  • Coated polymeric film
  • Coated polymeric film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] COMPARATIVE EXAMPLES Double-sided coated transparent or opaque polymer films known in the art (such as disclosed by McGee et al. in US Pat. Coating transfer and failure of acceptable bond of coating and / or adhesive to polymeric substrate. Each of these issues should be carefully considered when evaluating acceptable candidates for a particular thin film application. The following inorganic coatings (no ionomer and no crosslinker) were applied to 196 LL B2 (pure polymer film) and 60LH247 (cavitation opaque polymer film) on the six inch wide backside adhesive receiving surface of each.

Water to 15% solids - 124.8g

Wetting Agent Surfactant - Genapol UD 050 (Clariant Corp.) - 0.2g

Ammonia Stabilized Water Insoluble Colloidal Silica - Ludox AS40 - 75.0g

[0082] Using the technique disclosed by McGee in U.S. Patent No. 6,893,722, the following print top coats were prepared and applied at 0.1-0.3 g / m 2 Applied to the printed side of each of the 196 LL B2 (clear) and 6...

Embodiment 2

[0088] Rohm and Haas (R & H), which also manufactures many adhesives including removable adhesive polymers and chemicals, has a laboratory facility in Spring House, Pennsylvania. R & H's laboratories can provide analysis and act as an independent laboratory to evaluate the performance of any of a variety of different substrates in combination with any of R & H's adhesive products, including removable adhesives with R & H properties of coated polymer films used in combination with They can also provide analysis of adhesives and polymeric film substrates used in conjunction with any of a variety of base substrates such as aluminum, stainless steel, thermoplastics, fabrics, paper, and more. The removable adhesive composition is commercially available. For this Example 2, R&H Testing Services was used.

[0089] The following discussion demonstrates one method of how to determine the appropriate amount of crosslinker (using ammonium zirconium carbonate crosslinker and ethylene ac...

Embodiment 3

[0099] This example illustrates how the selected samples of Example 2 further performed in the in-coil blocking test. All samples had the same print topcoat as described in Example 1. The results illustrate that some embodiments of the preferred EAA / silica ratio can produce good blocking resistance. The samples were coated and placed in a hot and dry environment (52°C, ~10% RH) for approximately 16 hours on the same day after rewinding. After conditioning, the samples were rewound on a Talboys coater. If the sample tears before it is completely rewound, the number of turns on the three inch film of the receiver core is measured at the point of tear. Higher numbers indicate improved, but still unacceptable results for many applications. Fully rewound samples were designated as "Acceptable" in the "Rewind" column.

table 3

In-coil Blocking Test, Blocking Results and EAA / Silica Ratio

sample Rewind (Number of rolls when tearing) EAA / Silica A tear(0) N...

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PUM

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Abstract

This invention relates to, in one aspect, a printable, two-side coated polymer film comprising a) a polymer substrate including a first side and a second side; b) a back-side coating on the second side of the substrate, the back-side coating comprising 1) an ionomer, and 2) particles of a colloidal mineral, a majority by weight of the colloidal mineral particles having an overall mean diameter of not greater than about 1.0 micron and preferably not greater than 0.1 micron; and c) a front-side coating on the first side of the substrate, wherein the front-side coating is printable.

Description

technical field [0001] The present invention relates to double-sided coated composite films and labels, preferably pressure sensitive labels. In particular, the present invention relates to clear, printable, double-coated polymer-based films and labels that are block-resistant while providing strong adhesion to adhesives and resistance to moisture and pasteurization. Background technique [0002] Many untreated or uncoated polymer films, such as films made from isotactic polypropylene, may not provide acceptable adhesion of inks or adhesives without special treatment or coating. Coating and treating polymer films greatly improves their usefulness and functionality. However, when both sides of the film are treated and / or coated to increase the surface energy, severe interfacial sticking problems can arise when rolling or stacking the film. To be useful, processable and functional, the top surface of the polymer film should not stick to the back surface. [0003] In polymer...

Claims

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Application Information

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IPC IPC(8): C09J7/02C08J7/04G09F3/10B32B27/28C08J7/043C08J7/046C09J7/29
CPCC09J2201/162C08K3/22C08K3/26C08J7/047C09J2203/334C09J123/0876C09J7/0296C08J2423/08C09J7/29C08L2666/48Y10T428/25Y10T428/259Y10T428/256Y10T428/31855Y10T428/31935C08J7/0427C09J2301/162C08J7/043C08J7/046
Inventor D·E·迈克格B·R·L·格林奥尔
Owner JINDAL FILMS AMERICAS LLC
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