阅读说明：本技术 一种涂布于低克数热升华转印纸上的涂层 (Coating on low-gram-number thermal sublimation transfer paper ) 是由 张家李 于 2019-09-27 设计创作，主要内容包括：本发明提供的一种涂布于低克数热升华转印纸上的涂层由A组分和B组分溶解于水中制备而成,其中A组分为一类成膜性好的材料,B组分为一类亲水性好的材料,A组分和B组分的重量之比为5～9：1～5,A组分和B组分重量之和占所述的涂布于低克数热升华转印纸上的涂层重量为4～8g/m<Sup>2</Sup>,B组分的作用的保水,B组分的化学分子具有较强的亲水性基团,可以与水分子形成某种形式的结合,从而把染料分子和染料中一小部分水留在涂层之中,这个在转印的过程中,水分子受热由液态变成气态,会带动染料一起朝纺织面料方向运动,这样有利于染料到达更广的区域,从而消除由打印机压轮造成的白点。(The coating coated on the low-gram-number thermal sublimation transfer paper is prepared by dissolving a component A and a component B in water, wherein the component A is a material with good film forming property, the component B is a material with good hydrophilicity, and the weight ratio of the component A to the component B is 5-9: 1-5, wherein the sum of the weight of the component A and the component B accounts for 4-8 g/m of the weight of the coating coated on the low-gram-number thermal sublimation transfer printing paper 2 The water retention of the effect of the component B, the chemical molecules of the component B have strong hydrophilic groups and can form a certain form of combination with water molecules, so that dye molecules and a small part of water in the dye are retained in the coating, and in the transfer printing process, the water molecules are heated and changed into gas state from liquid state, and can drive the dye to move towards the direction of the textile fabric, so that the dye can reach a wider area, and white spots caused by a printer pinch roller are eliminated.)

1. The utility model provides a scribble coating on low gram number thermal sublimation changes printing paper which characterized in that: the coating coated on the low-gram-number thermal sublimation transfer paper is prepared by dissolving a component A and a component B in water, wherein the component A is a material with good film-forming property, the component B is a material with good hydrophilicity, and the weight ratio of the component A to the component B is 5-9: 1-5, wherein the sum of the weight of the component A and the component B accounts for 4-8 g/m of the weight of the coating coated on the low-gram-number thermal sublimation transfer printing paper²。

2. The coating applied to the low-gram thermal sublimation transfer paper according to claim 1, wherein: the component A is one or a mixture of more of cellulose, polyvinyl alcohol, polyamide, polyacrylamide and starch.

3. The coating applied to the low-gram thermal sublimation transfer paper according to claim 1, wherein: the component B is one or a mixture of more of calcium chloride, urea and glycerol.

4. The coating applied to the low-gram thermal sublimation transfer paper according to claim 1, wherein: the weight parameter of the low-gram-number thermal sublimation transfer paper is 30-65 gsm.

5. The coating applied to the low-gram thermal sublimation transfer paper according to claim 1, wherein: the weight parameter of the coating coated on the low-gram-number thermal sublimation transfer paper is 2-8 gsm.

6. The coating applied to the low-gram thermal sublimation transfer paper according to claim 1, wherein: the thickness of the coating coated on the low-gram-number thermal sublimation transfer printing paper is 2-15 mu m.

Technical Field

The invention belongs to the field of thermal sublimation transfer paper preparation, and particularly relates to a coating coated on low-gram-number thermal sublimation transfer paper.

Background

At present, thermal sublimation transfer paper is widely used in the field of digital printing, the yield of the national thermal sublimation transfer paper (for digital codes) in 2018 years is more than 10 ten thousand tons according to statistics, the gram weight of the transfer paper is lower and lower along with the progress of equipment and the white heat of market competition, and the influence of a printer pinch roller is more and more obvious in the printing process due to the fact that the transfer paper is thinner and thinner (a scanner paper feeding structure is mainly divided into two types, namely, a scanner paper feeding structure is used for driving the paper to advance by rotating without a pressure roller, and a scanner paper feeding structure is used for driving the paper to advance by a gear pressure rod with a slight bulge and a rubber pinch roller which are mainstream production equipment in the current market. The thin paper can often leave the gear mark of the pressure lever on the surface of the paper because of the bulge on the surface of the pressure lever (increasing the stepping precision of paper feeding in order to increase the friction force of the paper) after passing through the press wheel of the printer, and the height of the paper can be ejected by the pressure lever gear in a microcosmic mode. When the gear is printed on a fabric, fine white spots (with the diameter of less than 0.5 mm) are generated, and the defects of the product are caused.

At present, no good solution is provided for white dots formed by pinch rollers of thin paper (coated thermal sublimation transfer paper), so that a terminal customer can find product flaws only in the process of transferring printed pictures and texts to textiles after printing, the customer loss is large, and the delivery is delayed due to the fact that the digital orders have high requirements on the delivery. The space that the equipment end improved is limited, changes the depression bar and need dismouting printer again, and the expense is high and the risk is also high, grinds the depression bar surperficial arch and levels the white point that can improve the pinch roller and form, but the paper feed is step-by-step often to have the problem, and the later stage is ground and is generally leaned on by hand to go on moreover, grinds the unable assurance of precision.

Disclosure of Invention

Aiming at the problems, the invention develops a coating coated on low-gram-number thermal sublimation transfer paper. The coating is added with a component on the basis of the basic formula of the conventional thermal sublimation coating, the component can keep moisture, and the moisture is released in the process of transfer printing, so that the dye is driven to move, and the white point problem is solved, and the specific content of the invention is as follows:

the invention aims to provide a coating coated on low-gram-number thermal sublimation transfer paper, which is technically characterized in that: the coating coated on the low-gram-number thermal sublimation transfer printing paper is prepared by dissolving the component A and the component B in water, a finished product is obtained by coating the prepared coating, and white spots caused by a non-pressure roller are formed on the textile after printing and transfer printing. The component A is a material with good film forming property, the component B is a material with good hydrophilicity, and the weight ratio of the component A to the component B is 5-9: 1-5, wherein the sum of the weight of the component A and the component B accounts for 4-8 g/m of the weight of the coating coated on the low-gram-number thermal sublimation transfer printing paper²。

In some embodiments of the present invention, the component a is one or a mixture of several of cellulose, polyvinyl alcohol, polyamide, polyacrylamide and starch.

In some embodiments of the present invention, the component B is one or a mixture of calcium chloride, urea and glycerin.

In some embodiments of the invention, the weight parameter of the low-gram thermal sublimation transfer paper is 30-65 gsm.

In some embodiments of the invention, the weight parameter of the coating coated on the low-gram thermal sublimation transfer paper is 2-8 gsm.

In some embodiments of the invention, the thickness of the coating layer coated on the low-gram thermal sublimation transfer paper is 2 to 15 μm.

Compared with the prior art, the invention has the beneficial effects that:

the coating coated on the low-gram-number thermal sublimation transfer paper is prepared by dissolving the component A and the component B in water, a finished product is obtained by coating the prepared coating, and white spots caused by a non-pressure roller are formed on a textile after printing and transfer printing. The coating coated on the low-gram-number thermal sublimation transfer paper is characterized in that a component B is added on the basis of the component A, water is retained under the action of the component B, chemical molecules of the component B have strong hydrophilic groups and can form a certain form of combination with water molecules, so that a small part of water in dye molecules and dye is retained in the coating, and the water molecules are heated to be changed into gas from liquid in the transfer process and can drive the dye to move towards the direction of a textile fabric, so that the dye can reach a wider area, and white spots of a press wheel are eliminated.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below so that those skilled in the art can better understand the advantages and features of the present invention, and thus the scope of the present invention will be more clearly defined. The embodiments described herein are only a few embodiments of the present invention, rather than all embodiments, and all other embodiments that can be derived by one of ordinary skill in the art without inventive faculty based on the embodiments described herein are intended to fall within the scope of the present invention.