Example Analysis of Difficulties in Printing of Vacuum Aluminized Paper

In response to the difficulties in the printing of vacuum aluminized paper, some printing companies have offered suggestions and suggestions. This paper summarizes the “trick” faced by major printing companies in recent years.

Shanghai Tobacco Industry Printing Factory

Smoke machine debugging experience

The Shanghai Tobacco Industry Printing Factory (hereinafter referred to as Shanghai Industry) has a relatively long history of using vacuum aluminum plating materials. "Gold Shanghai" and "Green Double Happiness" cigarettes are all vacuum-coated. In the cooperation with the tobacco factory, Shanghai Industry successfully solved the problem of the easy abrasion of both sides of the cigarette pack and the drying and smoothness of the conventional offset printing ink during the packaging process of the vacuum aluminum coating material.

1. After replacing the vacuum aluminum coating materials, the key to adjustment of the cigarette label packaging machine is to make the cigarette labels have a moderate elasticity.

2. The operation mode is to adjust the pressure of the anilox roller so that the aluminum plated material can form an appropriate elasticity. Note that when the pressure is too large, the aluminum spray paper smoke mark (thin aluminum layer of sprayed aluminum paper is soft and thin, which is prone to scratches) will be damaged; If the pressure is too small, the resulting elasticity is not enough, and the phenomenon of poor molding will occur.

3. Different types of cigarette charter machines have different requirements for aluminum plating materials. For example, the elasticity requirements of the GD type packaging machine are not prominent, but the Fujitsu-type packaging machines have higher requirements for the flexibility of the cigarette labels.

4. If the adjustment is made by anilox rollers, the problem still exists and the aluminum-coated paper base paper needs to be adjusted.

In the past cooperation with cigarette companies, there has been a phenomenon that the original surface of the silver composite aluminum foil material used for cigarettes has poor surface glossiness. After the cigarette factory changed to aluminum-plated paper material, it not only played a role in increasing the gloss of the cigarette markings, but also decreased the gloss. The production cost of each product. Through the appearance enhancement and cost reduction, the company’s product sales have also increased. Over the years, the company has accumulated a wealth of experience in printing and manufacturing vacuum aluminized materials. It can also provide cigarette smoking machine debugging services to tobacco companies and release tobacco. The company's worries.

Jiangyin Unicom Group

Several Problems Needing Attention in Vacuum Aluminizing Printing

Since Jiangyin Unicom Group launched vacuum aluminized printing products in 2000, the amount of vacuum aluminum plating materials has been increasing year by year. Now, it has launched the “Azalea”, “Economy” and other branded aluminum label printing products.

Jiangyin Unicom believes that the main reasons for the increase in sales of this material are: 1. The material meets the national environmental protection policy; II. Use of this material can reduce packaging costs by about 10% (for Unicom only); III. The cigarettes are not easy to curl when packaged, which makes the packaging more convenient, and the packaging speed can be comparable to that of white cardboard, which improves work efficiency to some extent.

In the process of using vacuum aluminum plating materials, Jiangyin Unicom believes that the material has a high finish and is suitable for offset printing and gravure printing, especially for UV printing. However, there are several points to note in the printing process: 1. Vacuum aluminum-plated paper is not resistant to friction, so to reduce the number of overprint and the speed should not be too fast; II. The viscosity of the ink should be lowered to avoid affecting the composite effect of the product; Vacuum aluminum plating materials should not be stored for a long time to prevent oxidation of the product surface.

Shenzhen Weicheng Industrial Co., Ltd.

Aluminizing printing

Shenzhen Weicheng Industrial Co., Ltd. has been using vacuum aluminum plating materials to print cigarette packs since 2002. It is now Yunnan Qujing Tobacco Factory, Yunnan Kunming Tobacco Factory, Guizhou Bijie Tobacco Factory, Sichuan Mianyang Tobacco Factory, and Hunan Lingling Tobacco Factory. Shaanxi Baoji Tobacco Factory, Jiangxi Guangfeng Cigarette Factory, Zhejiang Ningbo Cigarette Factory, etc. provide smoke-plated aluminum-plated products. Up to now, the printed products of Shenzhen Weicheng aluminum-plated materials have increased by 50% from the original. After a long-term production practice, Shenzhen Weicheng has successfully solved the problem of production and printing of aluminum-coated paper. Such as the poor adhesion of ink, the phenomenon of paper color, bending and so on. In addition, Shenzhen Weicheng also developed a unique holographic printing technology, positioning printing technology, mirror surface oil technology, giving the vacuum aluminum coating materials more abundant expression.

Shenzhen Weicheng believes that the printing techniques for aluminized prints mainly include the following:

1. Pay attention to the matching of the printing ink and the printing material, and use the POP type quick-drying ink for ordinary printing;

2. The surface coating of aluminized paper is suitable for water-based coating;

3. The moisture content of aluminized paper should be controlled between 5% and 6%.

The aluminized material not only has a shiny metallic feeling and decorative, but also has environmental protection and conforms to the future development trend of packaging materials. At present, Shenzhen Weicheng mainly focuses on technology development. It hopes to bring new changes in the form of new technologies to the cigarette pack printing industry and establish a new concept of environmentally friendly packaging and printing so as to attract more cigarette factory cooperation.

Wuhan New Special Decoration Printing Co., Ltd.

Give full play to people's subjective initiative

Vacuum aluminum-plating materials have very broad application prospects in the cigarette and color box industries due to their recyclable, recyclable, and other characteristics, and will certainly become alternatives to composite aluminum foil materials and PET film materials.

For a long time, Wuhan Xinte specializes in special printing technology and has experience in large-scale production of various complicated processes such as wrinkling, ice flower, colorful, and positioning hot. At the same time, it also has a number of hardware facilities such as UV-curable printing technology, scratch-free printing equipment, and a constant temperature and humidity production environment. Based on the accumulation of rich production practices, the company did not appear to have problems such as slow production speed and re-commissioning of the hood after the replacement of materials by the other printing companies in the proofing process of vacuum aluminum plating materials. At that time, the main drawbacks of printed products were the inadequacies in heat resistance, folding resistance, wear resistance, and high brightness. In the process of organizing the research, the company places special emphasis on the subjective initiative of the printing operators. Any nuances in the printing operating environment can cause problems with the printed product, requiring the operator to have a high sense of responsibility.

For example, in the UV drying process, such as UV lamp just installed, the drying temperature will be high, then you need to reduce the amount of printing agent dimmer added, reduce the sensitivity of the prints to light; the other hand, with UV With the increase of the lamp usage time, the drying temperature will gradually decrease. At this time, the amount of the dimmer should be increased. For another example, when the toughness of the aluminized material is insufficient, the ink will be detonated, and the staff needs to continuously adjust the ratio of photosensitive materials, resins, and other variables in the material printing process. This requires the operator to play in the work. Subjective initiative, in response to changes in the surrounding production environment, is constantly adjusted to produce high-quality vacuum-aluminized materials.

Jiangsu Dadong Group Xuzhou Huayi Color Printing Co., Ltd.

How to win an aluminum-plated material printing order?

In recent two years, the Jiangsu Dadong Group Xuzhou Huayi Color Printing Co., Ltd. (hereinafter referred to as “Dadong Huayi”) has continuously increased the amount of environmentally friendly vacuum aluminum-plating materials, successively in Xuzhou Jiapin “Fantasy Tower” and the “five-star” tower. "," "Su smoke," new alcohol "Redwood", purple "Redwood", Jiapin "Slender West Lake", Yaguang small tribute "Redwood", Nanjing Tobacco Factory Jiapin "Dream" and other product packaging Zhong Qi put splendor. Along the way, it won all the orders for Xuzhou Cigarette Factory Gold and Silver Cardboard (ie, aluminum foil composite cardboard) and the standard aluminum plated material replacement business. The aluminum plated printing products business of the plant has taken a step further.

When vacuum aluminum coating material was first introduced into the market, many smokers did not understand this new material. Although they saw its outstanding environmental protection characteristics, can the printed material of this material be comparable to the raw material and completely replace the aluminum foil composite material? Is it more print expressive? The smoke factory still has doubts. After grasping this psychology, Dadong Huayi first introduced the material advantages of vacuum aluminized paper to the tobacco factory in detail, and through repeated proofing and comprehensive comparison, it emphasized to the tobacco factory that the aluminized material is for the smoke label printing. Both the metallic gloss of the composite aluminum foil jam and the PET-coated cardboard and the original plasticity of the white cardboard. At the same time, it is an environment-friendly type of paper, the material consumption is relatively lower, and fine lines can be hot pressed. After fully understanding the superiority of the material in the tobacco factory, Dadong Huayi further focused on a number of deficiencies in the use of aluminized paper, studied and concluded a series of solutions to ensure quality. Such as vacuum aluminum coating paper cracking problem, this is usually only one or two months after printing or even packaging, because of the problem of the nature of the back-placement will often cause irreparable damage to the tobacco factory. In order to avoid this situation, Dadong Huayi has to do a printing test for each new aluminized product. After a certain period of time, it has to be tested to determine the stability of its materials. Another problem is the poor wear resistance of vacuum aluminum plating materials. On the one hand, Dadong Huayi mobilized technicians to help tobacco plants adjust cigarette packers. On the other hand, this information is conveyed to the manufacturer of aluminized materials. The process recipe of the aluminized material is adjusted according to the specific conditions of the use of the tobacco factory. When the paper is hard, it is easily cracked. When the paper is soft, it is not wearable. phenomenon.

Through long-term practice, Dadong Huayi has summarized the following experience in the process of printing vacuum aluminum-plating materials: (1) Offset of UV offset ink and paper surface during offset printing screen printing, sometimes the phenomenon of ink breakage at the fold is noticed, pay attention to it Adhesion of ink, it is recommended to try POP ink, but also pay attention to the viscosity of the ink; 2 offset and silk screen to determine the boot speed according to the ink drying speed, offset moisture control is subject to dirty version, because the vacuum aluminum paper The surface is not like composite aluminum foil paper and PET paper, it has a certain number of fine holes, water can penetrate into the paper, so the control of the moisture is very important; 3 vacuum aluminum paper can not stack too much, the paper jam is not More than 3,000 sheets, because the surface of vacuum aluminum-plated paper is not wear-resistant, and stacking too much will damage the seal surface; 4 Note that vacuum-coated aluminum-plated paper should not be stored for too long. It is better not to exceed two months because it takes a long time for the surface to meet. Adhesion with the back of the paper, causing the paper surface hair; 5 vacuum aluminum paper printing should pay attention to the thermal curing temperature is not too high, the temperature will affect the vacuum aluminum paper Surface, it changes the flower and hot paper by swelling variant too, a great impact on the process.