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A flexible packaging material for printing ink and its preparation method

A printing ink and flexible packaging technology, applied in paper coating, non-pigment coating, fiber raw material processing, etc., can solve the problems of inability to adapt to the new continuous printing process, inability to recycle and reuse, high transportation costs, etc., and achieve water vapor transmission Low efficiency, easy recycling, no ink penetration effect

Active Publication Date: 2021-12-28
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the heavy weight and high transportation costs of printing ink metal barrels or cans, and they cannot be recycled and reused, causing serious environmental problems; in addition, during the production process, the ink in the ink barrels cannot be continuously and automatically squeezed to the printing machine The ink fountain in the system cannot adapt to the new continuous printing process

Method used

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  • A flexible packaging material for printing ink and its preparation method
  • A flexible packaging material for printing ink and its preparation method
  • A flexible packaging material for printing ink and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The flexible packaging material used for printing ink of the present invention has a size of 30cm*42cm, 125g / m 2 3 sheets of natural kraft wrapping paper; and weigh 40 g of granular polyethylene glycol with a model number of 2488; at the same time, weigh 26.7 g of a hydrogel with a nanocellulose content of 3%, the nanocellulose contained in the hydrogel The width is 10-30nm and the length is 100-500nm.

[0050] The preparation method of the above-mentioned flexible packaging material for printing ink is as follows:

[0051] Step (1): under stirring, slowly and gradually add polyethylene glycol into water with a temperature of 20° C. and a mass of 335 g, and then continue stirring for 24 h to obtain a polyethylene glycol solution with a concentration of 10%;

[0052] Step (2): in the polyethylene glycol solution in step (1), add nanocellulose crystal hydrogel, continue stirring for 2h, and then ultrasonically treat for 10min to obtain a PVA / CNC mixed solution;

[0053]...

Embodiment 2

[0058] The flexible packaging material used for printing ink of the present invention has a size of 30cm*42cm, 125g / m 2 3 sheets of natural kraft wrapping paper; and weigh 20 g of granular polyethylene glycol with a model number of 2488; at the same time, weigh 26.7 g of a hydrogel with a nanocellulose content of 3%, the nanocellulose contained in the hydrogel The width is 10-30nm and the length is 100-500nm.

[0059] The preparation method of the above-mentioned flexible packaging material for printing ink is as follows:

[0060] Step (1): under stirring, slowly and gradually add polyethylene glycol into water with a temperature of 25°C and a mass of 353 g, and then continue stirring for 18 h to obtain a polyethylene glycol solution with a concentration of 5%;

[0061] Step (2): in the polyethylene glycol solution in step (1), add nanocellulose crystal hydrogel, continue stirring for 1h, and then ultrasonically treat for 6min to obtain a PVA / CNC mixed solution;

[0062] Step ...

Embodiment 3

[0067] The flexible packaging material used for printing ink of the present invention has a size of 30cm*42cm, 125g / m 2 3 sheets of natural kraft wrapping paper; and weigh 20 g of granular polyethylene glycol with a model number of 2488; at the same time, weigh 53.4 g of a hydrogel with a nanocellulose content of 3%, the nanocellulose contained in the hydrogel The width is 10-30nm and the length is 100-500nm.

[0068] The preparation method of the above-mentioned flexible packaging material for printing ink is as follows:

[0069] Step (1): under stirring, slowly and gradually add polyethylene glycol into water with a temperature of 25°C and a mass of 178 g, and then continue stirring for 12 h to obtain a polyethylene glycol solution with a concentration of 8%;

[0070] Step (2): in the polyethylene glycol solution in step (1), add nanocellulose crystal hydrogel, continue stirring for 2h, and then ultrasonically treat for 8min to obtain a PVA / CNC mixed solution;

[0071] Ste...

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Abstract

The invention discloses a flexible packaging material for printing ink, which comprises a base layer and an oil-repellent, waterproof and oxygen-proof layer. The preparation method of the layer is as follows: under the condition of stirring, polyethylene glycol is gradually added to water, and after it is completely dissolved, nanocellulose crystals are added, stirring is continued, and then further ultrasonic treatment is performed to obtain a PVA / CNC solution; the PVA / The CNC solution is coated on the kraft paper, and then placed in a constant temperature and humidity box for drying. After that, the coated kraft paper is placed in the atmosphere of trichloromethylsilane vapor for a certain period of time, and then placed in a constant temperature and humidity chamber. Dry it in the box; finally fold it in half along the line connecting the midpoints of the two long sides of the composite kraft paper, and glue and seal both sides of the composite kraft paper by hot pressing. The packaging material of the invention is not only light in weight, low in transportation cost, easy to recycle and handle, but also can meet the requirement of continuous automatic extrusion of ink.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a flexible packaging material for printing ink and a preparation method thereof. Background technique [0002] With the rapid development of society, the printing industry has become an important industry in the contemporary era, and printing ink has the most important position in it. But currently, printing inks are stored and transported in sealed metal drums or cans. Because the printing ink metal drum or can is not only heavy, high transportation cost, but also cannot be recycled and reused, causing serious environmental problems; in addition, during the production process, the ink in the ink drum cannot be continuously and automatically squeezed to the printing press. The ink hopper in the system cannot adapt to the new continuous printing process. [0003] Therefore, how to provide a flexible packaging material that is light in weight, low in transportation co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H19/24D21H19/34D21H21/16
CPCD21H19/24D21H19/34D21H21/16
Inventor 江华张洋李逸文许静贾佩佩李忠
Owner NANJING FORESTRY UNIV
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