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No carbon required paper microcapsule and coating, and preparation methods of no carbon required paper and microcapsule

A technology of carbon-free copy paper and microcapsules, applied in the direction of pigment-containing coatings, etc., can solve the problem that the color density of carbon-free copy paper cannot be reached, achieve pollution control, and improve the effect of color density

Inactive Publication Date: 2014-08-27
GOLD HUASHENG PAPER SUZHOU IND PARK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, carbonless copying paper fails to meet the higher requirements of customers in terms of improving the color density of carbonless copying paper as much as possible while ensuring that the microcapsules will not be easily broken due to extrusion or friction

Method used

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  • No carbon required paper microcapsule and coating, and preparation methods of no carbon required paper and microcapsule
  • No carbon required paper microcapsule and coating, and preparation methods of no carbon required paper and microcapsule

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preparation example Construction

[0038] The present invention also provides a preparation method of microcapsules of carbonless copy paper, refer to figure 1 , the method includes:

[0039] Step S101: providing 3-5 parts by weight of leuco dye and 20-40 parts by weight of mineral spirits.

[0040] Step S102: heating the leuco dye and solvent naphtha, and obtaining the prepared chromogenic agent after dissolving.

[0041] Step S103: adding 10-25 parts by weight of the wall material, 5-15 parts by weight of the emulsifier and the prepared color developing agent into 20-50 parts by weight of deionized water for emulsification.

[0042] Step S104: After the emulsification process reaches a predetermined time, harden the emulsified product at a predetermined rotation speed to make microcapsules.

[0043] Both the predetermined time and the predetermined rotational speed are obtained through experimental verification. Under such preparation conditions, the prepared microcapsules are used to prepare carbonless cop...

Embodiment 1

[0068] Example 1: The color density is low.

Embodiment 2

[0069] Example 2: The color density is very high.

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Abstract

The invention discloses a no carbon required paper microcapsule and coating, and preparation methods of no carbon required paper and the microcapsule. The method of the microcapsule includes the steps: providing 3-5 parts by weight of an colorless dye and 20-40 parts by weight of a solvent oil; heating the colorless dye and the solvent oil, and dissolving to obtain a prepared chromogenic agent; adding 10-25 parts by weight of a wall material, 5-15 parts by weight of an emulsifier and the prepared chromogenic agent into 20-50 parts by weight of deionized water, and emulsifying; and after the duration of the emulsification process reaches a predetermined time, hardening the emulsified product at a predetermined rotation speed, and thus obtaining the microcapsule. Through the above way, while the microcapsule is guaranteed not to be easily broken because of extrusion or friction, the coloration density of the no carbon required paper is improved.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a carbonless copy paper microcapsule, coating and preparation method. Background technique [0002] Carbonless copy paper is easy to use, cleans hands, has many copies, is easy to process, and is neatly registered. It is widely used in business forms, such as invoices and forms for banking, taxation, telecommunications, insurance, and catering. [0003] Carbonless copy paper (NCR) is generally composed of three paper sheets, namely upper paper (CB paper), middle paper (CFB paper) and lower paper (CF paper). The back of the upper paper is coated with microcapsules; the front of the middle paper is coated with a developer and the back is coated with microcapsules; the front of the lower paper is coated with a developer. The microcapsules of the upper paper and the middle paper contain a chromogenic agent, which is mainly a leuco dye. The impact pressure during writing or prin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/38D21H19/42D21H19/46D21H19/62D21H19/54
Inventor 荣洋阳
Owner GOLD HUASHENG PAPER SUZHOU IND PARK
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