Rainy season mark? Summer glue? Winter flying markers? It's important to do these well!

Rainy season mark? Summer glue? Winter flying markers? It's important to do these well!

Self-adhesive materials are "sandwich" structural materials composed of backing paper, glue, and face material. Due to its own characteristics, in the use and storage of self-adhesive materials and labels, it is necessary to pay attention to the impact of environmental factors on the surface material, glue, backing paper and other aspects. Especially in the rainy season, summer, winter, which are easy to cause problems with self-adhesive materials, it is necessary to pay attention to the impact of environmental factors on self-adhesive materials to avoid unnecessary economic losses.

Common storage precautions for self-adhesive materials

Self-adhesive materials need to be stored in a dry environment to avoid adverse effects such as moisture and curling caused by high humidity. The recommended storage ambient temperature for self-adhesive materials is 23°C±2°C, and the relative humidity is 50%±5%. The fully packaged self-adhesive materials provided by the supplier should not directly touch the ground or wall when storing and placed, and the stacking height should be reduced as much as possible, stored away from heat and fire sources, and avoided direct sunlight. When using self-adhesive materials, do not open the original packaging in advance before leaving the warehouse, you need to follow the principle of "first in, first out", and the materials returned to the warehouse need to be repackaged or repackaged.

Precautions for the storage, processing and use of self-adhesive materials in the rainy season

The biggest feature of the rainy season is high air humidity, so self-adhesive materials must be moisture-proof when used. The matters that need to be paid attention to are: do not open the original packaging of self-adhesive materials as much as possible before using the machine; If the self-adhesive materials that are not used temporarily after unpacking, or the self-adhesive materials that need to be returned from the warehouse, need to be repackaged as soon as possible; The storage and processing workshop of self-adhesive materials needs to be dehumidified; Processed semi-finished products and finished products need to be packaged in time, and the packaging of finished product labels should be sealed and moisture-proof.

In the rainy season, it is most likely to cause problems such as warping, falling off, and bubbles when labeling, especially when labeling on corrugated boxes, so try not to open the packaging before labeling to avoid moisture and deformation of the material; Stickers such as cartons also need to pay attention to moisture-proof to avoid problems such as wrinkling, bubbles, and falling off due to excessive moisture absorption and deformation of cartons; The newly made corrugated box needs to be placed for a period of time to balance its moisture content with the environment before labeling; It is necessary to ensure that the paper pattern direction of the label is consistent with the paper pattern direction of the corrugated box at the labeling position, and the long edge direction of the film label is consistent with the paper pattern direction of the corrugated carton at the labeling position, so as to reduce the risk of wrinkling and warping after labeling. Ensure that the labeling pressure is in place and cover the entire label position, especially the corners; The labeled cartons and other products should be stored in a confined space with low air humidity as much as possible, avoid convection with the humid air from the outside, and then transfer them to outdoor circulation and storage after the glue is leveled.

Precautions for the storage, processing and use of self-adhesive materials in summer

In summer, the temperature is high, and the self-adhesive material is very prone to problems such as loose rolls and overflow. Therefore, when storing self-adhesive materials in summer, the expansion coefficient of self-adhesive materials needs to be considered first, because the "sandwich" structure of self-adhesive label materials makes them larger than those of any single-layer structure paper and film materials in a high-temperature and high-humidity environment.

The following principles should be followed when storing self-adhesive materials in summer: (1) The temperature of the warehouse where self-adhesive materials are stored should not exceed 25 °C as much as possible, and it is best to be around 23 °C. (2) The inventory time of self-adhesive materials should be shortened as much as possible, and the principle of "first-in, first-out" should be strictly followed, that is, the materials that enter the warehouse early should be used first, and then the self-adhesive materials that entered the warehouse late.

In addition, when labeling in summer, it should also be noted that if the ambient temperature of labeling is too high, the fluidity of the glue will become stronger, resulting in overflow of labeling, accumulation of glue on the guide roller of the labeling machine, and may cause problems such as poor labeling and labeling, labeling offset, and wrinkling, so the temperature of the labeling site should be controlled at about 23 °C as much as possible. In addition, due to the good fluidity of glue in summer, the leveling speed of self-adhesive label glue is also much faster than that of other seasons, so the product that needs to be re-labeled after labeling, the shorter the labeling time from the labeling time, the easier it is to unpeel and replace.

Precautions for the storage, processing and use of self-adhesive materials in winter

The temperature is very low in winter, and the viscosity of sticky adhesive materials has the characteristics of weakening with low temperature, and the problems encountered in daily production such as glue non-sticking, flying labels, and dropping marks are all related to temperature. Therefore, when storing self-adhesive materials in winter, it is necessary to pay attention to the environmental temperature should not be too low, because too low a temperature will reduce the viscosity of the glue, and there will be problems such as poor printing, die-cutting flying labels, and slitting flying marks and dropping marks in processing, which will affect the smooth processing of materials. Especially when the self-adhesive material is placed outdoors or in a cold environment, it is easy to cause the material, especially the glue part, to be frostbitten, if not properly warmed and warmed, the viscosity and processability of the self-adhesive material will be lost, or even lost, so it must be properly warmed before processing to ensure that the material temperature returns to about 23°C.

In addition, when labeling self-adhesive materials in winter, it should also be noted that the ambient temperature of the labeling should meet the requirements of the product, and the self-adhesive label material needs to be warmed and insulated before labeling to ensure that the temperature of the self-adhesive label material and the surface of the sticker is restored to above the minimum labeling temperature permitted by the material. In addition, the labeling pressure should be appropriately increased to ensure that the glue and the surface of the object to be pasted have sufficient contact and bonding, and at the same time, the product after labeling should be avoided in an environment with a large temperature difference for a short time as much as possible, and it is recommended to transfer it after 24 hours.