阅读说明：本技术 涤纶的热转移印花工艺 (Thermal transfer printing process for terylene ) 是由 徐纯刚 苏俊 于 2019-11-04 设计创作，主要内容包括：本发明公开了涤纶的热转移印花工艺,所需要通过印花底布原料、热转移印花机、印花助剂、印花染料、转印纸、烘干机以及高温高压汽蒸箱,已达到生产工艺的需求。本发明的有益效果是：本发明方法首先通过改善助剂的来针对不同质地的涤纶布料,使印花的涤纶布料达到了良好的印花效果,保证了涤纶布料的印花品质,相比较传统的单一性选择,更好的保证了印花工艺的整体质量,通过改善了印花布料的烘干温度以及烘干时长,避免或减少印花布料整体水分流失过快导致整体发生轻微形变的情况,或者烘干热量过高导致色浆分散的情况,同时印花布料存在的微量水分也会伴随后续的处理工序流失殆尽,所以不会因印花布料中存在水分影响整体的印花工艺。(The invention discloses a thermal transfer printing process of terylene, which meets the requirements of the production process by a printing base cloth raw material, a thermal transfer printing machine, a printing auxiliary agent, a printing dye, transfer paper, a dryer and a high-temperature high-pressure steaming box.)

1. The thermal transfer printing process of terylene needs to pass through a printing base fabric raw material, a thermal transfer printing machine, a printing auxiliary agent, a printing dye, transfer paper, a dryer and a high-temperature high-pressure steaming box, and reaches the requirement of the production process, and is characterized in that: the method comprises the following five steps:

, selecting bleached and unbleached light-colored fabrics as the printing base fabric raw materials, and arranging the selected printing base fabric raw materials in a heat transfer printing machine;

step two: the printing base fabric raw material is arranged in a thermal transfer printing machine, then printing dye and transfer paper are arranged on the thermal transfer printing machine, and the thermal transfer printing machine prints the printing base fabric raw material through thermal transfer;

step three: printing the printing auxiliary agent on the printing base fabric raw material, wherein the printing auxiliary agent can be divided into urea, an oxidant and an acid or an acid releasing agent, and the printing auxiliary agent can be selected according to the printing requirement;

step four: the selective dryer is used for carrying out rapid drying operation on the printed base fabric raw material after printing is finished, the drying heat is controlled to be 80-90% of that of the dryer, and the drying time is controlled to be 4-6 minutes;

step five: the printing base fabric raw material dried by the dryer is arranged in a high-temperature high-pressure steaming box, and the high-temperature high-pressure steaming box quickly fixes the color of the printed base fabric raw material through high-temperature high-pressure evaporation.

2. The thermal transfer printing process of terylene according to claim 1, characterized in that: if the printing auxiliary agent is urea, 3-7% of the printing auxiliary agent can be added; if oxidant is selected, 0.4-1.1% can be added, and pH value is controlled at 4.5-5.8; if acid or acid releasing agent is selected, 0.6-1.2% can be added; meanwhile, water is added to synthesize 1001 percent.

3. The thermal transfer printing process of terylene according to claim 1, characterized in that: when the thermal transfer printing machine is used for transfer printing operation, the printing temperature is kept between 201 ℃ and 240 ℃, when the temperature is too low, the transfer effect of the transfer printing is not facilitated, the ring dyeing phenomenon that fibers have white cores can be generated, and when the temperature is too high, the condition that the hand feeling of the fabric is rough and hard can be caused, and even the condition that the fabric is deformed can be caused.

4. The thermal transfer printing process of terylene according to claim 1, wherein the printing dye is preferably selected from middle-temperature type same-color (hot melting temperature above 175 ℃) or high-temperature type fixed-color (hot melting temperature above 190 ℃) dye, the low-temperature type fixed-color dye is not preferably used, the sublimation temperature of the disperse dye used for printing on fabric is , and the sensitivity to the fixing condition is required to be low, which is an important condition for ensuring the printing reproducibility.

5. The thermal transfer printing process of terylene according to claim 1, characterized in that: the high-temperature high-pressure steaming box is arranged in a closed steaming box at 1.36X10⁵To 1.75X10⁵Pa; and the temperature is controlled to be 125-135 ℃, and the steaming time is 25-32 min.

Technical Field

The invention relates to the technical field of terylene printing, in particular to a thermal transfer printing process of terylene.

Background

Polyester fiber, commonly known as "polyester", is a synthetic fiber obtained by spinning polyester formed by polycondensation of organic dibasic acid and dihydric alcohol, referred to as PET fiber for short, and belongs to a high molecular compound, invented in 1941, which is the th major variety of the current synthetic fiber, and the polyester fiber has the greatest advantages of good crease resistance and shape retention, high strength and elastic recovery capability, fastness, durability, crease resistance, easy ironing, and no hair sticking;

the thermal transfer printing refers to the transfer printing of clothing thermal transfer printing generally divided into hot melt type transfer printing and thermal sublimation, and the hot melt type transfer printing is commonly used for all-cotton products, and the shortcoming is that the gas permeability of feeling is poor. Offset printing, gravure printing, silk screen printing and data printing; the production process of the terylene is also finished by thermal transfer printing

Therefore, based on the above research, the existing thermal transfer printing process for terylene has many defects, the existing thermal transfer printing process for terylene can cause the dispersion condition on the surface due to the too fast loss of water in the cloth, the temperature of the cloth of the transfer printing of terylene can not be controlled reasonably well, so that the cloth is easy to have more inferior products in the production process, the cost loss and the resource waste are caused, meanwhile, the drying part in the production process can not be controlled reasonably, the specific time of the traditional process is dull, the high-quality drying operation can not be better achieved for the cloth with different quality, and the quality of the transfer printing process is reduced, so the production process above needs to be improved, and the production requirement is met.

Disclosure of Invention

The invention aims to provide a thermal transfer printing process of terylene to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

the thermal transfer printing process of terylene needs to pass through a printing base fabric raw material, a thermal transfer printing machine, a printing auxiliary agent, a printing dye, transfer paper, a dryer and a high-temperature high-pressure steaming box, and reaches the requirement of the production process, and is characterized in that: the method comprises the following five steps:

, selecting bleached and unbleached light-colored fabrics as the printing base fabric raw materials, and arranging the selected printing base fabric raw materials in a heat transfer printing machine;

step two: the printing base fabric raw material is arranged in a thermal transfer printing machine, then printing dye and transfer paper are arranged on the thermal transfer printing machine, and the thermal transfer printing machine prints the printing base fabric raw material through thermal transfer;

step three: printing the printing auxiliary agent on the printing base fabric raw material, wherein the printing auxiliary agent can be divided into urea, an oxidant and an acid or an acid releasing agent, and the printing auxiliary agent can be selected according to the printing requirement;

step four: the selective dryer is used for carrying out rapid drying operation on the printed base fabric raw material after printing is finished, the drying heat is controlled to be 80-90% of that of the dryer, and the drying time is controlled to be 4-6 minutes;

step five: the printing base fabric raw material dried by the dryer is arranged in a high-temperature high-pressure steaming box, and the high-temperature high-pressure steaming box quickly fixes the color of the printed base fabric raw material through high-temperature high-pressure evaporation.

, adding 3-7% of printing assistant if urea is selected, 0.4-1.1% of oxidant if oxidant is selected, controlling pH at 4.5-5.8, 0.6-1.2% of acid or acid releasing agent if acid or acid releasing agent is selected, and adding water to synthesize 1001%.

, when the thermal transfer printing machine is in transfer printing operation, the printing temperature is kept between 201 ℃ and 240 ℃, when the temperature is too low, the transfer effect of the transfer printing is not facilitated, the ring dyeing phenomenon that the fiber has a white core can be generated, and when the temperature is too high, the condition that the hand feeling of the fabric is rough and hard can be caused, and even the condition that the fabric is deformed can be caused.

, selecting moderate temperature same color (hot melting temperature above 170 ℃) or high temperature color fixing (hot melting temperature above 195 ℃) dye as the printing dye , not using low temperature color fixing dye , having the same sublimation temperature of as the disperse dye used for printing on fabric, and requiring low sensitivity to fixing conditions, which is an important condition for ensuring printing reproducibility.

, the high-temperature high-pressure steaming box is arranged in a closed steaming box at 1.36X10⁵To 1.75X10⁵Pa; and the temperature is controlled to be 125-135 ℃, and the steaming time is 25-32 min.

Compared with the prior art, the method has the beneficial effects that the production flow of the thermal transfer printing process of the terylene is obviously improved, the printed terylene cloth achieves good printing effect by improving the auxiliary agent aiming at the terylene cloth with different textures, the printing quality of the terylene cloth is ensured, compared with the traditional single nature selection, the overall quality of the printing process is better ensured, the condition that the overall deformation occurs due to the too fast overall moisture loss of the printed cloth is avoided or reduced, or the condition that the drying heat is too high to cause the dispersion of color paste is avoided by improving the drying temperature and the drying time of the printed cloth, the color degree on the printed cloth is ensured, meanwhile, the trace moisture existing in the printed cloth can be lost along with the subsequent processing procedures, so the overall printing process cannot be influenced by the moisture existing in the printed cloth, meanwhile, the heat is reduced, the consumption of electric power and energy is reduced, and the economic benefit is good.

Drawings

FIG. 1 is a schematic view of a thermal transfer printing production process of terylene according to the invention;

FIG. 2 is a schematic diagram of the transfer printing effect of the polyester fabric at different temperatures according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only partial embodiments of of the present invention, rather than all embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", " end", "another end", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "disposed," "connected," and the like, are used to mean, for example, "connected," which may be fixed or detachable, or connected physically, mechanically, electrically, directly or indirectly through an intermediary, or communicating between two elements.