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We are a professional adhesive label material manufacturer,here we share some experiences for you:

2025-02-24

Factors of poor sticky performance on carton: 1) Poor quality of glue: The stickiness of glue is the key factor that the adhesive label can be firmly attached or not. If the stickiness of glue is not strong enough, the adhesive label on the carton will fall off easily. 2) Expired or improper adhesive label material storage condition: If the adhesive label exceeds the shelf life, the glue performance will decrease. If the storage environment is humid, hot or exposed to sunlight, the stickiness will decrease. 3) Unclean surface on carton: Dust, oil, water or stains on the surface of the carton will reduce the stickiness or even cause the label to fall off. 4) Rough or uneven carton surface: The uneven surface of the carton will cause the adhesive label to not fit completely when pasted, and bubbles and warping will occur. 5) No labeling pressure on carton: Insufficient pressure during manual labeling, or too low labeling pressure of the automatic labeling machine. 6) Inappropriate labeling temperature: Too low a temperature will reduce the viscosity of the glue, decrease the fluidity, and make it...

What are the factors that affect the storage time of self-adhesive labels?Can we still use it when expired?

2025-02-18

A. What factors affect the shelf life of self-adhesive labels? 1) Storage conditions, with 23℃±2℃ temperature, 50% relative humidity, and avoiding exposure to the sun can generally maintain normal use for 1 year. 2) Generally speaking, the viscosity of paper adhesive label material will decrease over time. The impact on film self-adhesive label materials is relatively small and can keep good viscosity. 3) The type of glue will also affect the shelf life. Water-based glue and solvent have relatively stable performance, while hot melt glue will decrease in viscosity over time or oil will exude onto the facesheet. 4) The quality of silicone oil will also affect the peeling force. Some silicone oil performance decreases over time, making it difficult to peel off during die-cutting and labeling. When choosing suppliers, we recommend to cooperate with big brands or reliable suppliers, as their material quality is better. B. Can self-adhesive labels that have expired still be used? Generally speaking, the warranty period for self-adhesive labels is one year. If it exceeds one year, we need to test the initial adhesion and peeling strength, and whether there are any problems with the labeling and...

Adhesive label material tension problem

2025-02-12

What will happen if adhesive label material we buy with too tight tension: A. Material damage 1) Facestock material stretching and deformation: Winding too tightly will cause the self-adhesive label facestock to excessive stretching and deformation, it is easy to break during subsequent processing or use. 2) Damage to glue performance: Excessive winding pressure may squeeze the glue layer, causing the glue to overflow, destroying the uniformity of the glue and affecting the viscosity. Moreover, under high pressure for a long time, the glue may age faster, resulting in reduced viscosity and making the label easy to fall off during use. 3) Backing paper breaking: Winding too tightly will produce greater pressure and tension on the backing paper, especially for thinner paper, which is easy to break. Once the base paper is broken, it will bring difficulties to die-cutting, labeling and other processes. B. Printing problems 1) Inaccurate printing: If adhesive label material tension is too tight, the material may rebound, jump and resulting in uneven transmission speed of self-adhesive materials, making it difficult to ensure overprint accuracy 2) Ink adhesion problems: Excessive tightening of the material may...

label curls?Let me help you.

2025-02-10

We hear many clients complain that label curls,here we explain why this happen and how to solve it. A.If labels curl after we do die-cutting, this is because we didn’t control the printing and die-cutting workshop temperature and humidity well. We need to control the temperature between 20-25℃ and the relative humidity at 50% B.If label curls immediately after labeling, it is generally caused by insufficient sticky performance of the adhesive, or your label material stores too long time,or labeling workshop temperature is too low temperature. Our solutions are: 1. Control well the labeling workshop temperature,temperature too high or too low will have problems. 2. Don’t store label material more than 1 year. 3. Test label material before mass production. 4. If label is used for carton and the surface is uneven,we need to increase amount of glue on labels. C.If label curling start 24 hours after labeling, this is mainly because inappropriate selection of self-adhesive materials, poor cohesion, unreasonable use by customers, etc. 1. Choose the right self-adhesive material. Self-adhesive for small bottles should choose strong adhesives, whose adhesion on the bottle body should be much greater...

label glue overflow problem

2025-01-23

A.label glue overflow caused by raw material manufacturer: 1.Improper surface treatment of the facestock: The facestock must be treated before combining with glue. If the treatment is not done well, the glue and the facestock will not be firmly bonded, and glue is easy to overflow during the following production and processing. Glue overflow caused by this is easy to check. We can stick the facestock on glue side, then peel them off and see if there is any glue falling off from the facestock. If there is, it means that the pretreatment of the facestock is not good. This is a technical problem and we have to change a new supplier. 2. The glue performance is not good: generally speaking, hot melt adhesive has stronger fluidity, so it is easier to overflow than acrylic glue. Therefore, try not to use rubber-based glue for coating for plastic film label. 3. Unreasonable glue coating thickness: the acrylic coating weight of acrylic glue is around 20g/㎡, and the hot melt glue is 17g/㎡. If the glue coating weight is too high, it can enhanced sticky performance but glue is easy...

Label missing or stick on machine?

2025-01-23

According to our experience, there are following reasons: 1. The blade is not sharp enough and the glue is not completely cut off. For this case, we can solve the problem by replacing a new blade. 2. The glue is completely cut off, but the fluidity of the glue increases when the temperature is high. If the die-cutting machine and the scrap rolling machine is far away, the glue flows back and sticks together again, which will also cause label missing when rolling the scrap . At this time, we only need to shorten the die-cutting and scrap rolling machine distance. 3. The low peeling off force of the self-adhesive label causes label missing. Here is the main reasons for the low peeling force are: A.Label material factory set a low peel off force. In this case, the supplier needs to adjust the material and adjust the peel off force. B. The storage time of the self-adhesive label material is too long, and the glue and silicone oil performance changed. We suggest storage time of self-adhesive label material is less...

Label Material Curls Up?Let me help you.

2025-01-23

This is because the label paper absorbs or loses water. If the temperature is too high and the air is too dry, the self-adhesive will curl up in the direction of the facestock; conversely, if the air is too wet, the self-adhesive will curl up in the direction of the bottom paper. To avoid similar situations, we need to do the following: 1. The self-adhesive label materials need to be stored away from sunshine, the temperature should be controlled at around 20°C, and the humidity should be controlled at around 50%. 2. If the storage environment is suitable, or only a small quantity of self-adhesive label materials curl up,this is because the self-adhesive label material manufacturer does not control well the humidity of the paper during producing,this is a technical problem,we recommend to change to a reliable factory. We are a professional label material manufacturer, if you have any problem welcome to contact us.

self adhesive label materials structure and classification

2025-01-07

According to structure, self-adhesive labels have a layer of coating on facestock surface, facestock, glue on the back of facestock, and liner to protect the facestock.Self-adhesive labels can be used in the express industry, food, beverage, medicine, chemical industry and other industries.According to facestock material, self-adhesive labels can be divided into 2 types:1,paper self-adhesive labels, including semi-gloss labels, casted labels, thermal labels and maplitho labels2.plastic self-adhesive labels, including PE self-adhesive labels, PET self-adhesive labels, PP self-adhesive labels, PVC self-adhesive labels.According to the performance of the glue, self-adhesive labels can be divided into removable labels and permanent labels.we are a professional label material manufacturer,If you have any problem welcome to discuss!

Shipping label

2025-01-07

1.Uncoated direct thermal label, it has good printing effect, but it is not waterproof or oil-resistant.2.Coated direct thermal label, we call it top coated thermal label,it has a special coating on facestock. The facestock is a little yellowish, but it is waterproof, oil-resistant and scratch-resistant. We are a professional label material manufacturer, if you have any problem welcome to contact us.

How to identify label adhesive?

2025-01-07

We stick the self-adhesive facestock together and then tear it apart:1. If there is a long drawing line, it is hot melt2. If the drawing line is short, it is acrylic3. If there is no drawing line, it is solventwe are a professional lable material manufacturer, If you have any confusion welcome to tell us.

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We are a professional adhesive label material manufacturer,here we share some experiences for you:

What are the factors that affect the storage time of self-adhesive labels?Can we still use it when expired?

Adhesive label material tension problem

label curls?Let me help you.

label glue overflow problem

Label missing or stick on machine?

Label Material Curls Up?Let me help you.

self adhesive label materials structure and classification

Shipping label

How to identify label adhesive?

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