Application status of the hottest plastic label in

2022-08-15
  • Detail

Application status of plastic labels in beer packaging

with the increasingly homogeneous brewing flavor, beer differentiation and sales war ultimately rely on packaging. Recently, Tsingtao Beer standardized logo, Yanjing 100% changed to metal aluminum foil, snowflake bottle unified packaging color, it is obvious that beer manufacturers are using labels to refresh consumers' awareness of the brand, and feel product innovation through packaging

subject to strict flavor requirements, it will take time for beer liquid packaging to switch to plastic bottles, and traditional glass bottles are still dominant. Due to the lack of flexibility of PET bottles in the bottle shape of glass, bottle labels have been limited to paper cold labeling for a long time. In addition to the changes of printing patterns and cut label shapes, the substrate and labeling process are relatively simple. Now, shrink label and transparent self-adhesive (APL) have been established on beer shelves, and their new faces are very eye-catching, bringing unprecedented visual impact

shrink film label

shrink film label includes shrink sleeve label and wrap around label, which are widely used for labeling all kinds of non-alcoholic beverage containers and become a pet standard bottle labeling form. Film thickness to μ m. The base material is determined by the labeling performance of the label on the shrinking machine with lower investment cost of spraying equipment. The commonly used shrinking films are PVC, PETG, OPS and opp. PVC has high shrinkage (40% - 60%), good tensile strength and low cost, which is suitable for multi package packaging. PVC labels on PET bottles are not easy to peel when recycled because the relative density of the materials is close, and this problem does not exist in the recycling of glass bottles. A shrink film label of Anhui China Resources beer uses PVC substrate. The shrinkage of PETG is as high as 78%, but its application is hindered by high prices. Ops is a unidirectional membrane with a shrinkage rate of 65%. It has both environmental protection and economic advantages, and has a good application prospect. Opp is a bi-directional film with low shrinkage (20%), which is suitable for approximate cylindrical containers with low shrinkage requirements. Ops and OPP are suitable for shrinking surrounding labels. The new curve glass bottle of Blue Ribbon Beer adopts OPS substrate with high shrinkage and solvent based adhesive for labeling

there are two printing methods of shrink film labels, gravure and flexographic web printing. Because the plastic film is easy to stretch and deform or shrink by heat, the tension and heat of the machine should be accurately controlled during printing. The shrink sleeve label printing also needs to be equipped with a sealing machine to fold the sheet film into a barrel, seal the overlapped parts to form a joint, and then flatten the barrel film and roll it up. Generally, the sealing part is not printed to avoid affecting the bonding fastness when labeling

shrink film printing inks include solvent based inks, water-based inks and UV inks. The selection of inks should combine the requirements of friction coefficient (COF), shrinkage, adhesion and residue. COF determines the slip efficiency of the label on the surface of the container; The ink shrinkage characteristics match the film. The higher the film shrinkage, the required ink shrinkage is 60% - 70%, and the lower is 10% - 20%; The adhesion of solvent based inks is generally better than that of ink; The ink can be quickly dried under low heat to avoid the migration of residual chemicals to the surface of the printed matter

shrink sleeve label requires special labeling equipment to cover the printed sleeve label on the container. The shrink film labeling machine opens the cylindrical sleeve label, then cuts and forms the sleeve onto the container, and uses steam, infrared or hot air channels to adsorb the sleeve label on the surface of the container. The traditional cold adhesive labeling machine can be used for shrinking the surrounding label. Due to the low shrinkage rate of OPP surrounding label, it is more suitable to use hot melt adhesive for labeling. Solvent based adhesive will wrinkle the film, and hot air is better than steam heating for shrinking

the cost per unit area of shrink film is equivalent to that of label coated paper, but due to the relatively large area of bottle sticking, the overall price of a single bottle is slightly higher than that of paper labels. However, the new heat shrinkable beer label gives the product innovation and influence, and consumers are willing to pay more for its added value

transparent self-adhesive

domestic consumers are not unfamiliar with the self-adhesive wine label. Lion beer has been labeled with self-adhesive coated paper, and its brand has faded out of the market, but the unique labeling form of "Shihao" is memorable. Thin film beer label is known as the king of the standard. Because it is in the market testing stage, its commercial application needs to be developed. According to statistics in 2004, 1.5 billion non-alcoholic beverage (NAB) stickers, 1billion wine stickers, 2billion flavored alcoholic beverages (FAB) stickers and 1billion beer stickers are concentrated in high-end brands

self adhesive labels have been widely used in many industries such as beverages, daily chemicals, pharmaceuticals and electronics for a long time. Beer labels are dominated by traditional wet adhesive labels. When Kingway beer first adopted self-adhesive plastic labels in China, the sales demand jumped. Young consumers feel that the clear and transparent plastic film belt came one month ago. 2. Main technical parameters of the low-temperature tank: a "label free" vision, but they do see its crystal like existence, and the fashion feeling is unforgettable. After bukingway, Carlsberg, Qingdao and Budweiser successively launched high-end crystal labels, and several domestic breweries are also eager to try. The wet strength and physical properties of plastic labels are better than those of paper labels. Sticking them on the bottle can enhance the anti-collision force of beer bottles; Plastic label printing is durable, which can prolong shelf display and night ice water time; With regard to the recycling and bottle washing treatment, Eli company is developing a rapid aqueous de standard solvent. The supplier Shanghai Zhengwei company believes that once the plastic label is rolled out in the beer packaging industry, the commercial cost must be reduced accordingly. According to the statistics of European and American industries, the total amount of traditional cold labels is decreasing by 3.6% every year, while self-adhesive labels, especially transparent plastic labels, are increasing by 10%

at present, there are two kinds of transparent labels developed by the foreign packaging industry. One is plastic self-adhesive, and the printing technology is mature. Because the price is 10 times higher than that of ordinary paper labels, it also needs to invest fixed capital to purchase labeling machines, and large-scale promotion is yet to be seen. The other is the plastic cold label, which is printed with a roll of film as thin as 25U and cut into a single label (direct cutting or die cutting), which is called cut stack. The plastic pre cutting label is the same as the labeling machine and glue of the current paper label in the brewery, and the packaging workshop can save the cost of installing a self-adhesive labeling machine. However, the plastic pre cut label can not overcome the blistering and wrinkle defects in the wet pasting process, which affects the transparency and beauty of the label

self adhesive labels are highly specialized as a whole, especially beer plastic labels. American Eli company specially developed a kind of Fasson pressure-sensitive adhesive transparent OPP label material, which has good brand performance, printability, die-cutting processability and adaptability. Film plastic label printing can adopt both relief rotation and silk lithography, as well as the combination of modern flexographic printing and gravure hanging convex silk plate. Domestic professional self-adhesive manufacturers such as Zhengwei, guoma, Yongsheng, Jiangtian and other enterprises have deployed enterprises from Lintec, sanki, Shiki, iwasiaki, Ondo, labelman, kopack, Comco Nilpeter and others represent the world's leading printing machines. Flexo/gravure printing is characterized by large batch, uniform printing surface and bright colors. The cooling roller is especially suitable for the printing of soft plastic labels. Combined with silk or relief rotary printing, it makes the graphic lines prominent, the field color saturated, and the gradient color bright, pushing the drum film label printing to the exquisite pole

the combined printing process is equipped with rotoflex magnetic die cutting system, which ensures the cutting accuracy of pressure-sensitive adhesive fabric on the one hand, and meets the labeling speed of beer bottles per minute on the other hand. The speed of self-adhesive labeling used to be a technical problem that beer manufacturers worried about. The efficiency of self-adhesive labeling machines made by Krones, KHS and keshimin has been close to that of cold adhesive labeling. The labeling technology department of Krones Group also recently developed a component labeling machine equipped with four sets of labeling systems, including pre cutting cold glue labeling station, hot glue labeling station (canonical), shrink film labeling station (contiroll) and roll type self-adhesive aps2 labeling station. The pressure roller is used for the test piece, which includes the investment direction of the beer industry in the next 10 years

information source: labeling information major

Copyright © 2011 JIN SHI