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Imaging element with amorphous hydrocarbon resin

A technology of imaging components and hydrocarbon resins, which is applied in photosensitive materials, temperature recording methods, instruments, etc., to achieve high stiffness, reduce the moisture content of raw materials, and reduce the cost of components

Inactive Publication Date: 2003-12-03
EASTMAN KODAK CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Foam has also found limited use in imaging media

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0135] Embodiment 1: (contrast)

[0136] The substrate used in this example was prepared by coating each side of a standard cellulose photographic paper substrate with polypropylene to a coverage of 36.6 g / m on each side 2 . The polypropylene is extrusion coating grade high melt strength polypropylene homopolymer. The polypropylene was ProFax(R) PF611, MFR 30 g / 10 min, obtained from Base 11, which was extruded onto a cellulose paper base (Sample 1A). Extrusion coating conditions are listed in Table 1 and were held constant for all Examples 1 to 7 and 9 to 15. A release sheet coated with silicone was inserted between the paper and the extrudate to obtain a film of the extrudate. The Young's modulus of the film was then measured using a rapid tensile test using the procedure described below.

[0137] Die

Egan 32

Extruder size

1.5 inches (0.038m)

Extruder barrel area setting

350，450，475，525，525，525，525

L / D

30∶1

Melt tempera...

Embodiment 2

[0142] This example was prepared the same as Sample #1, except that PA609, which is an organic stiffness-enhancing additive, was added. Resin additive PA609 (derived from a masterbatch of cyclopentadiene in polypropylene) was obtained from Exxon-Mobil and dry blended with PF611 in a 10:90 weight ratio. This composition was then extrusion coated onto the same cellulose paper base at the same coverage using the extrusion coating conditions specified in Table 1 (Sample 1B). A release sheet was inserted between the extrudate and the paper base in order to obtain a film of the extrudate, which was then tested for Young's modulus.

Embodiment 3

[0144] This example was prepared in the same manner as Example #2, except that the resin additives PA609 and PF611 were dry blended in a 20:80 weight ratio. This composition was then coated onto a cellulose paper base using the extrusion coating conditions specified in Table 1 (Sample 1C). A release sheet was inserted to obtain a thin film of the extrudate, which was then tested for Young's modulus.

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Abstract

The present invention relates to an imaging member comprising an imaging layer and at least one stiffening layer comprising a blend of polyolefin polymer and amorphous hydrocarbon resin. The invention further describes a method for making the imaging member, comprising extruding a foam polymer sheet, orienting the foam polymer sheet, bringing a stiffening layer comprising a blend of polyolefin polymer and amorphous hydrocarbon resin into contact with the oriented foam polymer sheet, and applying an imaging layer above the stiffening layer. A second method of forming an imaging member comprises extruding a foam polymer sheet, bringing at least one stiffening layer comprising a blend of polyolefin polymer and amorphous hydrocarbon resin into contact with the foam polymer sheet, orienting said foam polymer sheet and said stiffening layer and applying an imaging layer above said stiffening layer. Another method describes the formation of an imaging member comprising making a cellulosic sheet, bringing at least one stiffening layer comprising a blend of polyolefin polymer and amorphous hydrocarbon resin into contact with the cellulosic sheet and applying an imaging layer above the stiffening layer.

Description

technical field [0001] The present invention relates to imaging media. In preferred forms, it concerns photographic, inkjet, thermal and electrophotographic supports. Background technique [0002] In order for a printed imaging support to be widely accepted by consumers in imaging applications, it must meet requirements for preferred basis weight, paper caliper, stiffness, smoothness, gloss, whiteness and opacity. Carriers with properties that differ from those typical for imaging media are rarely accepted by consumers. [0003] In addition to these basic requirements, there are other special requirements for imaging supports depending on the mode of image formation on the support. For example, in photographic paper forming, it is important that the photographic paper is impermeable to liquid processing chemicals, otherwise there will be smudges on the edges of the print, seriously affecting image quality. In the formation of photographic quality inkjet paper, it is impor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/01B41M5/00B41M5/41B41M5/50B41M5/52C08L23/02C08L57/00G03C1/79G03C1/93G03G7/00
CPCB41M5/506G03G7/0053C08L57/00Y10T428/31902Y10T428/31938G03C1/93B41M5/41Y10T428/31844Y10T428/31797B41M5/508Y10T428/31848G03C1/79C08L23/02C08L2666/02
Inventor S·宋德拉彦N·东图拉P·T·艾尔瓦德N·I·菲彭
Owner EASTMAN KODAK CO
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