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A kind of digital inkjet printing material and preparation method thereof

A technology of digital inkjet printing and printing materials, which is applied in the field of advertising display and decorative materials, can solve the problems of unguaranteed picture quality, complicated preparation process, and fading of inkjet patterns, and achieves improved anti-ultraviolet and heat-oxidative aging resistance. Preparation method Simple, high softening point temperature effect

Active Publication Date: 2017-02-01
ZHEJIANG OUREN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the preparation process is complex and the production cost is high
Because outdoor advertisements are exposed to the sun and rain, the inkjet materials in the prior art have poor weather resistance, water resistance, light resistance, and acid and alkali resistance, so the printing pattern fades seriously, and the picture quality cannot be guaranteed.

Method used

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  • A kind of digital inkjet printing material and preparation method thereof
  • A kind of digital inkjet printing material and preparation method thereof
  • A kind of digital inkjet printing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1) Preparation of special hot melt adhesive for digital inkjet printing:

[0036] According to parts by weight, weigh the following components,

[0037] 70 parts of PVC resin, 25 parts of plasticizer (DOP), 5 parts of composite ultraviolet absorber (the weight ratio of HALS and UV-328 is 1:9), 5 parts of antioxidant 1010, 0.6 parts of defoamer, hard 4 parts of fatty acid, 10 parts of calcium zinc stabilizer, 100 parts of ethyl acetate. Add ethyl acetate, PVC resin, plasticizer DOP, composite ultraviolet absorber, antioxidant 1010, stearic acid, calcium zinc stabilizer into the polymerization kettle and stir and mix, add defoamer to defoam during the stirring process, static Set, filter, detect, reserve.

[0038] The solid content of the prepared hot melt adhesive is 40%, the softening point temperature is 78°C, the melt flow index is 140g / 10min (200°C), the apparent viscosity is 5600MPa.S, the bonding strength is 2.5Kg / 25mm, and the peel strength is 192N / cm.

[003...

Embodiment 2

[0050] 1) Preparation of special hot melt adhesive for digital inkjet printing:

[0051] According to parts by weight, weigh the following components,

[0052] 66 parts of PVC resin, 23 parts of plasticizer (DOP), 4 parts of composite ultraviolet absorber (the weight ratio of HALS and UV-328 is 1:8), 4 parts of antioxidant 1010, 1.5 parts of defoamer, hard 3 parts of fatty acid, 15 parts of calcium zinc stabilizer, 95 parts of butanone. Add methyl ethyl ketone, PVC resin, plasticizer DOP, composite ultraviolet absorber, antioxidant 1010, stearic acid, calcium zinc stabilizer into the polymerization kettle, stir and mix, add defoamer to defoam during the stirring process, and let stand , filtering, detection, backup.

[0053] The solid content of the prepared hot melt adhesive is 38%, the softening point temperature is 82°C, the melt flow index is 130g / 10min (200°C), the apparent viscosity is 5100MPa.S, the bond strength is 2.1Kg / 25mm, and the peel strength is 158N / cm.

[...

Embodiment 3

[0063] 1), the preparation of special hot melt adhesive for digital inkjet printing is the same as in Example 1.

[0064] 2), the preparation of the ink-absorbing material is the same as in Example 2.

[0065] 3), the preparation of digital inkjet printing materials:

[0066] Put the PP base material on the roller shaft of the adhesive machine and unwind it. The unwinding tension is 15N. The surface of the base material is treated with corona. The high-frequency AC voltage used for corona treatment is 10000V / m 2 ;

[0067] Coat 25 μm of special hot melt adhesive for digital inkjet printing on the surface of the substrate, dry at 80°C, and cool down; coat 35 μm thick ink-absorbing material on the surface of the cooled special hot melt adhesive for digital inkjet printing, dry, and cool down;

[0068] Spray the pattern on the surface of the ink-absorbing material, cover the surface of the pattern with a release film, and press the substrate downward for 20 seconds at 160°C and...

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Abstract

The present invention belongs to the technical field of advertisement displaying and decoration materials, and more particularly relates to a digital inkjet printing material and a preparation method thereof. The method comprises: placing a substrate onto the placing roller of a coater, unwinding, and carrying out a corona treatment on the surface; coating a special digital inkjet hot-melt adhesive on the substrate surface to achieve a thickness of 10-50 [mu]m, drying, and cooling; coating an ink absorbing material on the special digital inkjet hot-melt adhesive, drying, and cooling; carrying out pattern inkjet on the ink absorbing material surface layer, downward pressing the substrate for 5-60 s at a temperature of 140-170 DEG C under a pressure of 1-5 Kg by using a hot pressing technology, starting to melt the special digital inkjet hot-melt adhesive, penetrating into the inkjet pattern surface layer from the pore between the ink absorbing material and the inkjet pattern, and forming a film layer; and cooling, winding, cutting, and packaging. The digital inkjet printing material of the present invention has characteristics of no white point, no gas bubble, bright pattern color, high clarity, excellent flatness, excellent stiffness, low production cost, good weather resistance, significantly-improved ultraviolet ray resistance, and significantly-improved heat oxidation aging resistance.

Description

technical field [0001] The invention belongs to the technical field of advertisement display and decorative materials, and in particular relates to a preparation method of a digital inkjet printing material. Background technique [0002] With the rapid development of the advertising and publicity industry, large-format, inkjet and photo outdoor advertising with a variety of printing materials have good development prospects. For example, billboards next to highways, product posters in commercial areas, etc., or outdoor personal portraits, small product advertisements, etc. This type of outdoor advertisement has a large area, a high location, and a long distance. Therefore, outdoor advertisements need to have good clarity and high appreciation value. [0003] Outdoor advertisements in the prior art generally use PET, PP or base cloth as the medium, and ink-absorbing material is coated on the surface of the medium, and then the pattern is fixed by cold laminating film technol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J127/06C09J11/06B41M5/50
Inventor 江叔福杨晓明
Owner ZHEJIANG OUREN NEW MATERIALS CO LTD
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