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 t

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

Example 1

[0081] The comparative example shows that the known double-sided coating of transparent or opaque polymer films in the prior art (for example, McGee et al. in US Patent No. 6,939,602) may show many application limitations, including adhesion, spreading noise, haze, Coating transfer and failure of the coating and / or adhesive to the polymer substrate can accept the bond. Each of these issues should be carefully considered when evaluating acceptable candidates for a particular film application. The following inorganic coating (no ionomer and no crosslinking agent) was applied to the 196 LL B2 (pure polymer film) and 60LH247 (cavitation opaque polymer) manufactured by ExxonMobil Films described above for the in-coil adhesion test Film) on the six-inch wide backside adhesive receiving surface of each.

Realize 15% solid water -124.8g

Wetting agent surfactant-Genapol UD 050 (Clariant Corp.)-0.2g

Ammonia stabilized water-insoluble colloidal silica-Ludox AS40 -75.0g

[0082] ...

Example Embodiment

Example 2

[0088] Rohm and Haas (R & H), also manufactures many adhesives including polymers and chemicals that can remove adhesives. The company has a laboratory facility in Spring House, Pennsylvania. The R & H laboratory can provide analysis and act as an independent laboratory to evaluate the performance of any of a variety of different substrates combined with any R & H adhesive product, including the removable adhesive with R & H Performance of the coated polymer film used with the mixture. They can also provide analysis of adhesives and polymer film substrates used in combination with any of a variety of substrate substrates, such as aluminum, stainless steel, thermoplastics, fabrics, paper, etc. The removable adhesive composition is commercially available. For this Example 2, the R&H Test Service Center was used.

[0089] The following discussion demonstrates one method of determining the appropriate amount of crosslinking agent (using ammonium zirconium carbonate crosslin...

Example Embodiment

Example 3

[0099] This example illustrates how the selected samples of Example 2 perform further in the in-coil adhesion test. All samples have the same printed topcoat as described in Example 1. The results indicate that some embodiments of the preferred EAA / silica ratio can produce good blocking resistance. The sample was coated and placed in a hot and dry environment (52°C, ~10%RH) on the same day for approximately 16 hours after rewinding. After conditioning, the sample was rewinded on the Talboys coater. If the sample tears before being completely rewinded, the number of rolls on the three-inch film receiving the core is determined at the point of tear. Higher numbers indicate improved, but still unacceptable results for many applications. The fully rewinded sample is designated as "acceptable" in the "rewind" column.

table 3

In-coil adhesion test, adhesion result and EAA / silica ratio

sample Rewind (number of rolls when tearing) EAA / silica A Tearing (0) ...

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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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