Base paper for thermal transfer

A thermal transfer printing and pressure technology, which is applied in the direction of special paper, paper, papermaking, etc., can solve the problems of low economic and social benefits, insufficient water resistance, and low paper bulk, so as to improve transfer efficiency and The pass rate of printing, the effect of solving large-width printing wrinkles and reducing paper traction

Inactive Publication Date: 2011-10-12
GOLD HUASHENG PAPER SUZHOU IND PARK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that the degree of water resistance is not high enough, which leads to the excessive penetration of the expensive paint into the paper during the coating process of the later customers, which leads to the problem of poor transfer printing effect of the end customers; Printing base paper is generally pr...

Method used

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  • Base paper for thermal transfer
  • Base paper for thermal transfer

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: papermaking basis weight is 80gsm

[0020] 1. Pulping

[0021] 100% bleached chemical pulp is used, the amount of bleached chemical pulp of hardwood accounts for 70%, and the amount of bleached chemical pulp of coniferous wood accounts for 30%. During the pulping process, it is necessary to ensure that the fibers are separated as much as possible to avoid excessive cutting of fibers.

[0022] 2. Add chemicals

[0023] In order to ensure that the heat transfer base paper has sufficient water resistance and avoid excessive penetration of the expensive silica sol coating material into the base paper during the subsequent coating process, alkyl ketene dimer is added to the wet end with an amount of 10 kg / ton of paper, alkenyl succinic anhydride 1.5 kg / ton of paper, filler: precipitated calcium carbonate, ground calcium carbonate, etc., 150 kg / ton of paper, other functional additives are added according to demand.

[0024] 3. Surface sizing

[0025] Add 10 ...

Embodiment 2

[0028] Embodiment 2: papermaking basis weight is 100gsm

[0029] 1. Pulping

[0030] 100% bleached chemical pulp is used, the amount of bleached chemical pulp of hardwood accounts for 90%, and the amount of bleached chemical pulp of coniferous wood accounts for 10%. During the pulping process, it is necessary to ensure that the fibers are separated as much as possible to avoid excessive cutting of fibers.

[0031] 2. Add chemicals

[0032] In order to ensure that the heat transfer base paper has sufficient water resistance and avoid excessive penetration of the expensive silica sol coating material into the base paper during the subsequent coating process, alkyl ketene dimer is added to the wet end, with an amount of 8 kg / ton of paper, alkenyl succinic anhydride 1.6 kg / ton of paper, filler: precipitated calcium carbonate, ground calcium carbonate, etc., 140 kg / ton of paper, other functional additives are added according to demand.

[0033] 3. Surface sizing

[0034] Add 5 ...

Embodiment 3

[0037] Embodiment 3: papermaking basis weight is 200gsm

[0038] 1. Pulping

[0039] 100% bleached chemical pulp is used, the amount of bleached chemical pulp of hardwood accounts for 80%, and the amount of bleached chemical pulp of coniferous wood accounts for 20%. During the pulping process, it is necessary to ensure that the fibers are separated as much as possible to avoid excessive cutting of fibers.

[0040] 2. Add chemicals

[0041] In order to ensure that the heat transfer base paper has sufficient water resistance and avoid excessive penetration of the expensive silica sol coating material into the base paper during the subsequent coating process, alkyl ketene dimer is added to the wet end with an amount of 12 kg / ton of paper, alkenyl succinic anhydride 1.0 kg / ton of paper, filler: precipitated calcium carbonate, ground calcium carbonate, etc., 200 kg / ton of paper, other functional additives are added according to demand.

[0042] 3. Surface sizing

[0043] Add 15 k...

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Abstract

The invention discloses base paper for thermal transfer. The base paper is prepared from 100% of chemical pulp through pulping, papermaking, drying and curling. The base paper is characterized in that in the pulping step, 50-100% of bleached chemical staple fibers and 0-50% of bleached chemical long fibers are used and undergo pulp dispersion, pulp cleaning and defibrination to achieve fibrillation in the defibrination process; when chemicals are added, 0-20kg/ton paper of alkyl ketene dimmer, 0-2kg/ton paper of alkenyl succinic anhydrides and 70-500kg/ton paper of filler are added to the wet part and other functional auxiliaries are added according to the conventional quantity demanded; 0-20kg/ton paper of surface sizing agent is added to surface sizing starch; and the front calendering pressure and the rear calendering pressure are 10-30kg/cm in the curling process. The base paper has the advantages of higher bulk, suitability for various dye sublimation ink, no crease despite large width of transfer, good transfer effect, bright pattern colors after transfer and the like.

Description

technical field [0001] The patent of the present invention relates to a new thermal transfer base paper, in particular to a thermal transfer base paper with high bulk and good transfer effect. Background technique [0002] At present, the transfer printing process has gradually changed from the printing and dyeing transfer method to the more environmentally friendly thermal transfer method. Compared with the traditional printing and dyeing technology, thermal transfer printing produces much less environmental pollution during the transfer process. Thermal transfer base paper is the substrate of thermal transfer printing and the basis of the thermal transfer process. The quality of the substrate directly determines the transfer effect of the end customer. At present, thermal transfer base paper is mostly made of 100% chemical pulp, which is made through pulping, refining, papermaking, drying, and curling. However, there is a problem that the degree of water resistance is not...

Claims

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Application Information

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IPC IPC(8): D21H27/00D21H15/02D21H15/06D21H21/16D21H17/17D21G1/00
Inventor 陈汉彬徐智龙李娟管新张家李宋启迪马开元左勇
Owner GOLD HUASHENG PAPER SUZHOU IND PARK
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