As one of the important raw materials for printing, ink has a great influence on the printing quality of products. In particular, the degree of drying of the ink is also related to the production efficiency. Therefore, with the continuous development of printing technology, printers will have the features of multicolorization, linkage, automation, and high-speed production. The traditional drying mode of inks will not be able to meet the requirements for high-quality, high-efficiency printing development. Only according to the characteristics of the printing process, choosing the right ink drying form can improve the production efficiency and product quality.
1. Infiltration drying form: After the ink is printed, during the drying process, part of the binder penetrates into the fibrous tissue of the paper, and the other part of the binder is fixed on the surface of the paper together with the pigment. This uses the absorption of the paper and the ink. Osmosis to achieve dry, belongs to the osmotic drying form. Rotary printing press paper, letterpress paper, etc., due to loose paper, strong ink absorption, suitable for the use of infiltration drying ink.
2. Volatile drying: In the drying process, after the solvent in the ink binder evaporates, the remaining resin and the pigment together form a solid film layer and adhere to the surface of the printed product. In order to speed up the drying process, the solvent in the ink layer of the ink is generally quickly volatilized and dried through medium heat. This type of ink is suitable for non-absorbent substrates such as plastic film, aluminum foil and other materials. Gravure inks and rubber relief inks use volatile drying.
3. Oxidized and dried form: In the printing process, dry vegetable oil is used as the linking ink. During the printing process, due to the combination of dry oil and oxygen in the air, an oxidative polymerization reaction occurs, gradually thickening the oil until it becomes a solid.
4, electron beam drying form: It is mainly composed of reactive polymer and monomer. The polymer basically has two types of unsaturated polyester and unsaturated acrylic polymer. With the electron beam drying technology, the ink can be rapidly polymerized without the use of initiators and catalysts, so that the ink layer of the ink can be instantaneously dried. The use of electron beam drying not only has a fast drying speed, but also is not limited by the thickness of the ink layer, and the use effect is good. Because the ink composition contains no solvent, no volatile gas is released, the ink film after drying has good fastness, wear-resistance and chemical resistance, and is suitable for packaging and printing.
5, pulse radiation drying form: The drying method is the use of electronic flash to quickly impact the ink layer on the surface of the print to achieve a chain reaction after the polymerization reaction until the end of the polymerization. The main role of pulsed radiation drying is the discharge tube. This type of discharge tube is different from ordinary discharge tubes in terms of raw materials, specifications, fillers, stability and power, and has a service life of about 1000 hours. The number of radiators required for a set of pulsed radiation devices depends primarily on the thickness of the printing ink layer and the time elapsed for the print in the radiation area. The use of pulsed radiation drying not only saves energy, but also applies to the drying of UV inks, and is more concentrated than UV drying. It completely eliminates the influence of thermal energy, does not require the use of special inks, and has wide adaptability.
6. Ultraviolet Drying Form: The drying form must be matched with special UV ink to achieve drying. That is, the ink layer of the printed product is irradiated with ultraviolet rays, and the ink film is rapidly cured and dried, which is favorable for high-speed continuous printing. Since the ink layer after being irradiated with ultraviolet light can be dried quickly within 1 second, the stain on the back of the printed sheet can be well prevented. The ink has a good condition of drying and conjunctiva. It is wear-resistant, oil-resistant, water-resistant, solvent-resistant, and chemical-resistant. It has a small odor and is suitable for printing foods and pharmaceutical packaging materials. The UV ink drying system adopts cold light energy, which is different from the forced heat drying. Therefore, it will not cause blistering and dehydration of the paper, and the printed sheets will not be easily deformed, which can ensure good product quality. In addition, the ink used in the dry form will not be conjunctiva dry without UV irradiation, which is advantageous for preservation.
7, infrared dry form: The dry form is the use of infrared radiation emitted by the infrared radiation, the heat absorbed by the material, directly into heat energy to achieve the effect of heating and drying. Any wavelength of radiation emitted by the infrared emitter is more easily absorbed by the ink, so the drying speed of the ink film can be greatly accelerated. The use of infrared drying reduces the drying time by 50% over conventional drying methods. Some even reach 80-90%, and the drying process does not produce harmful substances. The lifetime of the quartz plate of the infrared emitter can reach 10,000 hours, and the equipment investment is also much cheaper than the ultraviolet drying device. The device is mainly used for sheet-fed printing machines and has a good printing effect.
8, microwave drying form: This drying form is actually a kind of medium heating process, that is, under the action of microwave electromagnetic field, the heated media molecules become positively and negatively charged polarons. These polarizers oscillate along with changes in the electromagnetic field, and thus have the effect of heating and drying. The ink layer is dried with microwaves, generally using electromagnetic waves of 2450 MHz and 915 MHz. The drying results in a penetrating power that far exceeds the dryness of the infrared ray. This allows the printed ink layer to be heated and printed in a uniform manner, achieves uniform drying, and better avoids cracking, deformation, etc. due to uneven heating. Malady. The time required for microwave heating is short, which helps to save energy and increase economic efficiency. It also facilitates automated high-speed printing, and this form of drying does not produce harmful substances. Microwave drying is only applicable to water-based and other polar base inks, not for other inks.
The adjustment and control of ink drying is an important part of improving production efficiency and printing quality. According to the characteristics of the production process and the production conditions of the enterprise, the proper ink drying form can be selected to achieve the balance between product quality and economic benefits, so that the company can achieve better development. Therefore, it is necessary to understand and understand several dry forms of the ink. (Futian County, Fujian Province, printing plant Kang Qilai)
1. Infiltration drying form: After the ink is printed, during the drying process, part of the binder penetrates into the fibrous tissue of the paper, and the other part of the binder is fixed on the surface of the paper together with the pigment. This uses the absorption of the paper and the ink. Osmosis to achieve dry, belongs to the osmotic drying form. Rotary printing press paper, letterpress paper, etc., due to loose paper, strong ink absorption, suitable for the use of infiltration drying ink.
2. Volatile drying: In the drying process, after the solvent in the ink binder evaporates, the remaining resin and the pigment together form a solid film layer and adhere to the surface of the printed product. In order to speed up the drying process, the solvent in the ink layer of the ink is generally quickly volatilized and dried through medium heat. This type of ink is suitable for non-absorbent substrates such as plastic film, aluminum foil and other materials. Gravure inks and rubber relief inks use volatile drying.
3. Oxidized and dried form: In the printing process, dry vegetable oil is used as the linking ink. During the printing process, due to the combination of dry oil and oxygen in the air, an oxidative polymerization reaction occurs, gradually thickening the oil until it becomes a solid.
4, electron beam drying form: It is mainly composed of reactive polymer and monomer. The polymer basically has two types of unsaturated polyester and unsaturated acrylic polymer. With the electron beam drying technology, the ink can be rapidly polymerized without the use of initiators and catalysts, so that the ink layer of the ink can be instantaneously dried. The use of electron beam drying not only has a fast drying speed, but also is not limited by the thickness of the ink layer, and the use effect is good. Because the ink composition contains no solvent, no volatile gas is released, the ink film after drying has good fastness, wear-resistance and chemical resistance, and is suitable for packaging and printing.
5, pulse radiation drying form: The drying method is the use of electronic flash to quickly impact the ink layer on the surface of the print to achieve a chain reaction after the polymerization reaction until the end of the polymerization. The main role of pulsed radiation drying is the discharge tube. This type of discharge tube is different from ordinary discharge tubes in terms of raw materials, specifications, fillers, stability and power, and has a service life of about 1000 hours. The number of radiators required for a set of pulsed radiation devices depends primarily on the thickness of the printing ink layer and the time elapsed for the print in the radiation area. The use of pulsed radiation drying not only saves energy, but also applies to the drying of UV inks, and is more concentrated than UV drying. It completely eliminates the influence of thermal energy, does not require the use of special inks, and has wide adaptability.
6. Ultraviolet Drying Form: The drying form must be matched with special UV ink to achieve drying. That is, the ink layer of the printed product is irradiated with ultraviolet rays, and the ink film is rapidly cured and dried, which is favorable for high-speed continuous printing. Since the ink layer after being irradiated with ultraviolet light can be dried quickly within 1 second, the stain on the back of the printed sheet can be well prevented. The ink has a good condition of drying and conjunctiva. It is wear-resistant, oil-resistant, water-resistant, solvent-resistant, and chemical-resistant. It has a small odor and is suitable for printing foods and pharmaceutical packaging materials. The UV ink drying system adopts cold light energy, which is different from the forced heat drying. Therefore, it will not cause blistering and dehydration of the paper, and the printed sheets will not be easily deformed, which can ensure good product quality. In addition, the ink used in the dry form will not be conjunctiva dry without UV irradiation, which is advantageous for preservation.
7, infrared dry form: The dry form is the use of infrared radiation emitted by the infrared radiation, the heat absorbed by the material, directly into heat energy to achieve the effect of heating and drying. Any wavelength of radiation emitted by the infrared emitter is more easily absorbed by the ink, so the drying speed of the ink film can be greatly accelerated. The use of infrared drying reduces the drying time by 50% over conventional drying methods. Some even reach 80-90%, and the drying process does not produce harmful substances. The lifetime of the quartz plate of the infrared emitter can reach 10,000 hours, and the equipment investment is also much cheaper than the ultraviolet drying device. The device is mainly used for sheet-fed printing machines and has a good printing effect.
8, microwave drying form: This drying form is actually a kind of medium heating process, that is, under the action of microwave electromagnetic field, the heated media molecules become positively and negatively charged polarons. These polarizers oscillate along with changes in the electromagnetic field, and thus have the effect of heating and drying. The ink layer is dried with microwaves, generally using electromagnetic waves of 2450 MHz and 915 MHz. The drying results in a penetrating power that far exceeds the dryness of the infrared ray. This allows the printed ink layer to be heated and printed in a uniform manner, achieves uniform drying, and better avoids cracking, deformation, etc. due to uneven heating. Malady. The time required for microwave heating is short, which helps to save energy and increase economic efficiency. It also facilitates automated high-speed printing, and this form of drying does not produce harmful substances. Microwave drying is only applicable to water-based and other polar base inks, not for other inks.
The adjustment and control of ink drying is an important part of improving production efficiency and printing quality. According to the characteristics of the production process and the production conditions of the enterprise, the proper ink drying form can be selected to achieve the balance between product quality and economic benefits, so that the company can achieve better development. Therefore, it is necessary to understand and understand several dry forms of the ink. (Futian County, Fujian Province, printing plant Kang Qilai)
We specialized in developing, manufacturing and trading of BBQ grills and series of metal & plastic products since 2010. Our main products are Portable BBQ Grill, Folding BBQ Grill, Camping Stove, Rotating Grill, Electric Grill, Fire pit BBQs. BBQ Grills allow you to enjoy the happy time with your families,friends.
Camping Stove,charcoal grills,gas grills, smokers,camping stove,ourdoor cooking
TAISHAN YUEXIN INDUSTRIAL GROUP LIMITED , https://www.tsyuexin.com