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In modern production lines, labeling machines have become indispensable equipment in various industries. They can efficiently and accurately complete labeling and improve production efficiency. However, in the labeling process, many companies often encounter problems with wrinkled labels or bubbles, which affect the appearance and brand image of the product. As a professional labeling machine seller, we will deeply analyze the causes of these problems and provide detailed solutions to help companies optimize labeling quality.
1. Common causes of wrinkles or bubbles in labeling machines
1.1 Unsuitable label material or improper storage
The thickness, flexibility, and viscosity of the label material will affect the labeling effect. For example, labels that are too thin or too thick may cause uneven labeling, easy wrinkling, or bubbles. In addition, improper storage, moisture, or deformation of the label may also affect the quality of labeling.
1.2 The surface of the product is uneven or stained
If there is dust, oil, or moisture on the surface of the product, the label cannot fit the surface of the product completely, and bubbles are easily formed. In addition, uneven surfaces or excessive curvature will also make it difficult for the label to fit tightly, causing wrinkles.
1.3 Improper labeling pressure and angle
During the labeling process, if the pressure of the pressure wheel is uneven or the labeling angle is incorrect, some areas of the label may not fit firmly, forming wrinkles or bubbles. Especially during high-speed labeling, pressure control is particularly critical.
1.4 Improper labeling machine debugging
Irrational labeling machine parameter settings, such as conveying speed, peeling speed, rolling pressure, etc., which do not match the product characteristics, can easily cause the label to be misaligned, wrinkled, or bubbled during the labeling process.
1.5 Labeling machine quality problems
Low-quality or old labeling machines may cause unstable labeling due to the insufficient precision of the peeling mechanism and rolling system. Choosing equipment provided by professional wholesale labeling machine suppliers can effectively reduce these problems.
2. Solutions for wrinkles or bubbles in labeling machines
2.1 Choose the right label material
When purchasing labels, choose the right label material according to the product material. For example:
Transparent labels can use anti-bubble materials, such as PP and PET labels.
Paper labels should not be too thin or too thick to ensure the fit.
Labels used in low-temperature environments should use low-temperature adhesives to prevent warping or bubbles.
In addition, the label storage environment should be kept dry to avoid moisture and deformation to ensure a stable labeling effect.
2.2 Keep the surface of the object clean and dry
Before labeling, ensure that there is no dust, oil, or moisture on the surface of the product. You can use an air spray gun or a clean cloth to wipe the surface to improve the adhesion of the label. In addition, for curved products, a flexible labeling head can be selected to improve the fit.
2.3 Adjust the labeling pressure and angle
The pressure of the labeling machine's pressure wheel should be evenly distributed to avoid uneven labeling due to excessive or too small pressure. Especially for transparent labels, the rolling pressure can be appropriately increased, and the labeling speed can be reduced to reduce the generation of bubbles.
The labeling angle should be optimized and adjusted according to the product shape, for example:
When labeling a flat surface, ensure that the label is parallel to the product surface.
When labeling a round bottle, use the transfer method to gradually fit and reduce bubbles.
2.4 Optimization and debugging of labeling machine parameters
The correct labeling machine parameter setting can effectively reduce wrinkling and bubble problems. It is recommended to adjust the following parameters:
Label peeling speed: match the label peeling speed according to the conveyor belt speed to avoid label pulling and deformation.
Conveying speed: Adjust the speed according to the label material and product shape to avoid uneven labeling due to being too fast.
Rolling pressure: moderately increase the rolling time after labeling to ensure that the label is fully fitted.
Static elimination: In a dry environment, labels are easily affected by static electricity. Static elimination equipment can be used to prevent labels from absorbing air to form bubbles.
2.5 Choose a high-quality labeling machine
When purchasing wholesale labeling machines, professional labeling machine sellers should be given priority to ensure the accuracy and stability of the equipment. For example:
Choose a labeling machine equipped with a high-precision photoelectric sensor to improve labeling accuracy.
Choose a labeling machine with an adjustable pressure system to adapt to different product shapes and materials.
Choose a labeling machine with an automatic exhaust function to reduce bubble generation.
The labeling wrinkle or bubble problem of the labeling machine may be caused by a variety of factors, such as label material, product surface condition, labeling machine parameter settings, etc. By reasonably selecting labels, optimizing labeling processes, adjusting labeling machine parameters, and choosing high-quality equipment provided by professional labeling machine sellers, the labeling quality can be effectively improved and production efficiency can be improved. If you are looking for a reliable supplier of wholesale labeling machines, please contact us. We will provide you with professional labeling solutions to help companies improve product packaging quality!
http://www.beiltpack.com
hanghai BEILT Machinery Equipment Co., Ltd
