Flexible packaging such as squeeze tubes, pouches, and soft plastic bottles often changes shape during use. If the label material cannot move with the package, cracks may appear on the label surface, affecting product appearance and brand image.

Why Do Flexible Packaging Labels Crack?

1. Wrong Label Material Selection

Rigid materials may not withstand repeated bending or squeezing. For example, standard paper labels are not suitable for flexible packaging because they can easily crack.

2. Poor Adhesive Compatibility

The wrong adhesive may cause label lifting, wrinkles, or cracking, especially on surfaces exposed to oil, moisture, or chemicals.

3. Packaging Surface Conditions

Dust, oil, or moisture on the packaging surface can reduce adhesion performance and lead to label failure.

4. Printing And Finishing Effects

Some coatings or finishing processes may reduce flexibility if they are not matched with the packaging material.

Best Label Materials For Flexible Packaging

PE Labels

PE labels are ideal for flexible packaging due to their excellent flexibility and stretchability. They are commonly used for:

• Cosmetic tubes
• Lotion bottles
• Shampoo packaging
• Household products

PET Labels

PET labels offer high durability and scratch resistance, mainly used for products requiring stronger label performance.

How To Choose The Right Label Material?

Before selecting labels, consider:

• How much the package will be squeezed or bent
• Exposure to water, oil, or chemicals
• Required printing effects and appearance

For highly flexible packaging, PE labels are usually the preferred choice because they can move with the package and reduce cracking risks.

At Jinke, we provide customized flexible packaging label solutions with different materials, adhesives, and finishes to meet various application requirements.

FAQ

Q1: Why do labels crack on squeeze bottles?

Labels crack when the material is too rigid and cannot follow the movement of flexible packaging.

Q2: What is the best label material for cosmetic tubes?

PE labels are commonly recommended because of their flexibility and durability.

Q3: Are BOPP labels suitable for flexible packaging?

Yes, but they are better for applications requiring waterproof and oil-resistant performance rather than frequent squeezing.

Q4: How can I prevent labels from peeling off plastic packaging?

Choose the right adhesive, clean the surface properly, and select a suitable label material.