How to choose frozen food adhesive labels?
Frozen food labels, also known as low-temperature resistant labels and low-temperature labels, are mainly used in sub zero environments such as refrigeration, freezing, ultra-low temperature, liquid nitrogen, etc. Today, I will take you to learn about frozen food adhesive labels; Frozen food labels are mainly made of glass faced cardboard, thermal paper, adhesive paper, etc., which have excellent low-temperature bonding performance, strong water resistance, and strong bonding performance to PP and PE cling film. They can be widely used in frozen food or beverage content labels, price labels, etc
Frozen food refers to food that is of qualified quality, processed appropriately, and subjected to rapid freezing at a temperature of -30 degrees Celsius. After packaging, it is stored and circulated at a temperature of -18 degrees Celsius or lower. Due to the use of low-temperature cold chain storage throughout the process, frozen foods have the characteristics of long shelf life, low spoilage, and convenient consumption. However, this also poses greater challenges and higher requirements for packaging and labeling materials
Environmental characteristics of cold storage
High humidity and low temperature make it easy for ordinary labels to deform, wrinkle, and fall off in cold storage. Moreover, there are various forms of packaging for items in cold storage. The label selected in such an environment must have good moisture resistance and low temperature resistance characteristics. There are various types of adhesive for labels, and low-temperature adhesive must be selected for labels in cold storage
If the label is pasted at room temperature and then placed in the cold storage, the surface paper of the label should be selected with a certain degree of elasticity. Due to the fact that the packaging form of the item may be ordinary paper packaging or nylon bag packaging, different materials of labels can be selected according to the needs. It is recommended to try for a short period of time before deciding whether to use a certain material in the end
Why does the adhesive label material bubble?
1. Uneven application of strong adhesive: The surface of self-adhesive label material consists of three parts: surface material, adhesive, and backing paper. The design scheme of the labeling punching machine wheel is poor, and the working pressure is insufficient.
2. Electrostatic effect: For plastic film materials, electrostatic induction can also cause bubbles on the label.
3. Improper speed adjustment and labeling method of the labeling machine: During labeling, the operating speed of the bottle body should be slightly faster than the labeling rate, which can also avoid the occurrence of bubbles.
4. Before labeling, static electricity should be completely eliminated to make the label stand upright and free from the backing paper.
5. Brushes, sponge rollers, and vacuum pumps should not be used for labeling in the labeling machine. A vulcanized rubber scraper with a certain hardness should be installed to touch the label and maintain a certain direction and amplitude of the scraper. The labeling of soft bottles requires adjusting the labeling speed, scraper amplitude, viewing angle, and spacing in between.
What are the characteristics of stickers
1. Small investment, quick results: Adhesive printed products are mostly trademarks and stickers, with small format, fast printing speed, and less production waste.
2. Flexible printing method: Adhesive stickers are not limited by printing methods, and traditional printing factories can use offset or screen printing machines for printing.
3. Multi functional: Adhesive stickers are widely used in food, cosmetics, barcode products, and can also be used as labels for special environments such as electronic and mechanical products.
