Rainy season lifting marks? Summer overflowing glue? Winter flying marks? It's important to handle these well!

Adhesive materials are 'sandwich'-structured materials composed of a backing paper, adhesive, and face material. Due to their characteristics, when using or storing adhesive materials and labels, attention must be paid to the effects of environmental factors on the face material, adhesive, backing paper, and other aspects. This is especially important during seasons such as the rainy, summer, and winter seasons, which are prone to problems with adhesive materials, to avoid unnecessary economic losses. Common Storage Precautions for Adhesive MaterialsAdhesive materials need to be stored in a dry environment to avoid adverse effects such as moisture absorption and curling caused by high humidity. The recommended storage environment for adhesive materials is a temperature of 23℃±2℃ and a relative humidity of 50%±5%. Adhesive materials in complete packaging provided by suppliers should not be placed directly on the floor or against walls when stored. It is advisable to minimize stacking height, keep them away from heat and fire sources, and avoid direct sunlight. When using adhesive materials, the original packaging should not be opened before taking them out, following a 'first-in, first-out' principle. Materials returned to the warehouse should be repackaged or undergo secondary packaging.Storage, Processing, and Use Precautions for Adhesive Materials During the Rainy SeasonThe rainy season is characterized by high humidity, so it is essential to protect adhesive materials from moisture during use. Precautions include: avoiding opening the original packaging before using adhesive materials; repackaging temporarily unused materials or those to be returned to the warehouse as soon as possible; dehumidifying storage and processing areas; timely packaging of processed semi-finished and finished products, ensuring moisture-proof sealing of the finished label packaging.During labeling in the rainy season, common issues such as label lifting, detachment, and air bubbles are more likely to occur, especially on corrugated cartons. Therefore, the original packaging should not be opened in advance to prevent moisture-induced deformation. Items being labeled, such as cartons, should also be kept dry to prevent wrinkling, bubbles, and detachment caused by excessive moisture absorption. Newly made corrugated cartons should be left for some time to balance their moisture content with the environment before labeling. Ensure that the grain direction of the labels aligns with the grain direction of the corrugated carton at the labeling position; for film labels, the long side should match the grain direction of the carton. This reduces the risk of wrinkling and lifting after labeling. Labels should be pressed evenly, covering the entire label area, especially the corners. After labeling, cartons should be stored in an enclosed space with low humidity to avoid airflow with moist outside air, waiting for the adhesive to set before moving to outdoor storage and transportation.Storage, Processing, and Use Precautions for Adhesive Materials During the SummerHigh temperatures in summer can easily cause adhesive materials to curl or experience adhesive overflow. Therefore, when storing adhesive materials in summer, their expansion coefficient must be considered, as the 'sandwich' structure of adhesive labels expands more than any single-layer paper or film material in high temperature and humidity.The following principles should be followed when storing adhesive materials in summer: (1) The warehouse temperature should preferably not exceed 25℃, ideally around 23℃, while keeping humidity below 60%; (2) The storage time of adhesive materials should be minimized, strictly following the 'first-in, first-out' principle, where materials that entered the warehouse earlier are used first.In addition, during summer labeling, high environmental temperatures can cause adhesives to flow more easily, resulting in adhesive overflow, buildup on labeling machine guide rollers, and problems such as poor label feeding, misalignment, and wrinkling. Therefore, the labeling area temperature should be controlled around 23℃. Also, since adhesives flow better in summer, the leveling speed of label adhesive is faster than in other seasons. Therefore, for products requiring re-labeling, the shorter the interval since the label was applied, the easier it will be to remove and replace the label.

Storage, Processing, and Usage Precautions for Adhesive Materials in WinterDuring winter, temperatures are very low, and the adhesive properties of sticker materials tend to weaken as the temperature decreases. Common issues in daily production, such as adhesives not sticking, misaligned labels, or labels falling off, are all temperature-related. Therefore, when storing adhesive materials in winter, attention should be paid to maintaining the storage environment at a temperature that is not too low. Extremely low temperatures reduce the stickiness of the adhesive, leading to problems during processing such as poor printing quality, misaligned die-cut labels, and labels falling off during slitting, affecting smooth processing of the materials. This is especially critical when adhesive materials are placed outdoors or in cold environments, as they are prone to frost damage, particularly in the adhesive portion. Without proper warming and protective measures, the adhesive properties and processing performance of the materials can be compromised or even lost. Therefore, prior to processing, it is essential to warm the materials appropriately to ensure that their temperature returns to around 23°C.Additionally, when labeling with adhesive materials in winter, it is important to ensure that the environment temperature meets the product requirements. Before labeling, the adhesive labels should be warmed and kept at a suitable temperature to ensure that both the label materials and the surfaces to be labeled reach at least the minimum permissible labeling temperature. The minimum labeling temperature refers to the lowest environmental temperature at which labeling can be effectively performed. Moreover, appropriate pressure should be applied during labeling to ensure sufficient contact and adhesion between the glue and the surface. After labeling, the products should ideally be kept away from environments with significant temperature differences for a short period, and it is recommended to wait 24 hours before transferring them.