Production method of high stiffness heat transfer raw paper

A production method and thermal transfer printing technology, which is applied in paper, papermaking, paper coating, etc., can solve the problems of inconvenient paper feeding, inconvenient finishing and transfer of printers, and wrinkling of paper surface, etc. Simple and practical, delicate surface effect

Active Publication Date: 2014-04-16
安徽华邦古楼新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the heat transfer base paper is mostly made of 100% chemical pulp, which is made through pulping, refining, papermaking, drying, and coiling. Ink printing will produce warping, paper wrinkling, etc., which will easily cause paper feeding inconvenience to the printer. When a large number of printed sheets are piled up, it will be inconvenient to organize due to warping, and the warping of the transfer paper before thermal transfer will cause problems. Many problems such as transfer failure caused by transfer misalignment

Method used

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  • Production method of high stiffness heat transfer raw paper

Examples

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Effect test

Embodiment 1

[0041] A method for producing high-stiffness thermal transfer base paper, comprising the steps of:

[0042] 1) Disintegration of mixed pulp

[0043] The bleached kraft poplar pulp with a length of 1.1 mm, the bleached kraft softwood pulp with a length of 2.8 mm and the hard miscellaneous wood pulp with a length of 1.35 mm are (1.5:2:1) 1000 kg by weight. Disintegrate with a pulper (adding 3.0kg of natron, 40-45°Be in concentration, 35kg in CMC, 10% in concentration), dilute with water to 4.0% in concentration, and beat The degree of percussion is 26 0 SR slurry.

[0044] 2) Preparation of sizing solution in slurry

[0045] Add 500kg of clear water and 40kg of cationic starch into the glue pot, stir evenly, then slowly raise the temperature to 95°C, keep it warm for 20 minutes, add water to the mark, and stir evenly to prepare the slurry sizing solution for later use.

[0046] 3) Mixing slurry

[0047] Pump the mixed slurry prepared in step 1) into the batching tank, filte...

Embodiment 2

[0056] A method for producing high-stiffness thermal transfer base paper, comprising the steps of:

[0057] 1) Disintegration of mixed pulp

[0058] The bleached kraft poplar pulp with a length of 1.1mm, the bleached kraft softwood pulp with a length of 2.8mm and the hard miscellaneous wood pulp with a length of 1.35mm are (1.75:2:1) 1000 kg by weight, Disintegrate through a hydraulic pulper (adding 3.0kg of sodium hydroxide, a concentration of 40-45°Be, a weight of 50kg of CMC, and a concentration of 10%), and then dilute with water to a slurry with a weight concentration of 4.0% , and then labeled as a percussion degree of 28 0 SR slurry.

[0059] 2) Preparation of sizing solution in slurry

[0060] Add 500kg of clear water and 40kg of cationic starch into the glue pot, stir evenly, then slowly raise the temperature to 95°C, keep it warm for 20 minutes, add water to the mark, and stir evenly to prepare the slurry sizing solution for later use.

[0061] 3) Mixing slurry ...

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Abstract

The invention discloses a production method of high stiffness heat transfer raw paper, which comprises the following steps: 1), disintegrating a mixed slurry; 2), preparing a glue solution applied in the slurry; 3) preparing the slurry; 4), preparing the glue solution applied on a surface; 5), forming on a net; 6), applying the glue solution onto the surface. A hardwood slurry with the fiber length of 1.25 to 1.65 mm is added into the mixed slurry, sodium metasilicate and CMC (Carboxyl Methyl Cellulose) are added in the disintegrating process of the mixed slurry, the positive surface and negative surface glue applying methods are adopted, and the prepared heat transfer raw paper is fine and smooth in surface, has a proper double-side hygroscopic property and excellent tensile strength, and has higher bulk and stiffness. Therefore, the advantages of no warpage, no wrinkle, high ink-transfer rate and bright-colored transfer can be ensured during the using process.

Description

[0001] technical field [0002] The invention belongs to the technical field of heat transfer printing materials, and in particular relates to a production method of high stiffness heat transfer base paper. Background technique [0003] Heat transfer base paper is the base paper for producing heat transfer paper, which is coated and processed into heat transfer paper. At present, the heat transfer base paper is mostly made of 100% chemical pulp, which is made through pulping, refining, papermaking, drying, and coiling. Ink printing will produce warping, paper wrinkling, etc., which will easily cause paper feeding inconvenience to the printer. When a large number of printed sheets are piled up, it will be inconvenient to organize due to warping, and the warping of the transfer paper before thermal transfer will cause problems. There are many problems such as transfer failure caused by transfer misalignment. Contents of the invention [0004] The technical problem to be so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H15/10D21H21/16D21H21/20D21H17/29D21H19/84D21H19/14
Inventor 胡江涛叶荣贵仇红英程雪丽潘卫忠
Owner 安徽华邦古楼新材料有限公司
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