The answer for why your custom product label sticker warped

In the process of using the product label sticker, you may have found self-adhesive labels in the labeling process often have labeling warping, wrinkling, bubbles, backing paper fractures, and so on problems. The most common problem is label warping. In this article, we will share its reasons and give the solutions. We hope this can help you.

Factors to cause product label sticker warping.

We must use high-quality product label printing equipment to get a perfect quality self-adhesive product label sticker. Combined with practical work experience, we found that the factors below cause the product label sticker warping problems.

The poor glue of the product label sticker.

Choosing suitable glue is very important for producing a self-adhesive product label sticker, and the glue used for applying it to different objects is different. Therefore, when labeling, there are various product stickers and self-adhesive label glue to match each other, such as some product stickers can not be attached to a diameter of the bottle less than 3cm, and hot melt adhesive labels can not be attached to the PVC stickers, etc.

The product label sticker materials don’t match the affixed object.

As the material to be applied is different, its surface energy will be different, so the same kind of self-adhesive product sticker label labeling after the effect’s performance will be different. Before starting the product label printing, you’d better tell the affixed object so the product sticker printing factory can use suitable material to match.

The impact of smoothness of the product label sticker surface.

The smoothness of the self-adhesive label surface material is a crucial factor affecting the material’s overall smoothness, and the material’s overall smoothness is an important indicator to ensure the quality of product label printing. Therefore, in the labeling process, we must pay attention to check whether the self-adhesive label surface material is smooth, especially when the label has a laminate, be sure to pay attention to the laminate tension can not be too large, otherwise excessive tension will lead to the custom product labels curled upward, resulting in labeling warpage.

Product label sticker design causes the warping.

The product label sticker should be designed to avoid head and last laps as much as possible. We usually leave a small gap and avoid lapping together.

The shape of the affixed object causes the product label sticker to warp.

To get the ideal labeling effect, the object’s product sticker labeling surface should be flat after unfolding. If the labeling surface is curved in both directions after unfolding (spherical labeling surface), achieving the ideal labeling effect isn’t easy. Therefore, the bottle design should try to avoid such a shape or such a position when labeling the product sticker.

The surface condition of the affixed object causes the product label sticker to warp.

The roughness of the object’s surface to be affixed significantly impacts the product sticker labeling effect. The rougher the surface of the object to be attached, the easier it is to appear on the product sticker labeling warpage. In addition, if the object’s character is to be affixed with oil, water droplets, dust, and other impurities, equivalent to the glue paste on top of these impurities, it is also easy to appear product sticker labeling warping.

The labeling environment causes the product label sticker to warp.

When the product label sticker labeling, the ambient temperature must be in line with the minimum labeling temperature, and the surface temperature of the labeled object must be above the minimum labeling temperature. In addition, after labeling storage environment temperature is also very important. So, when producing your custom product labels, please tell us the environment they are used in to avoid these problems.

The labeling equipment causes the product label sticker warpage.

For different surfaces and labeling requirements, different product sticker labeling machines should be selected to ensure that the product label and the labeled object can be perfectly fit.

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