1. Select the appropriate slitting equipment

The quality of the slitting machine directly affects the label-slitting effect. To ensure the use of high-quality, precision slitting equipment, the following points need to be noted:

Equipment type: according to the material and labeling requirements choose the appropriate slitting machine. Common slitting machines include flat knife-slitting machines, circular knife-slitting machines, laser-slitting machines, etc.

Accuracy and control: ensure that the slitting machine has a high-precision slitting control system, which can accurately control the size and shape of each label to avoid the label edge is not a neat or large error.

Maintenance: Regular inspection and maintenance of the slitting equipment to ensure that the knife is sharp, and smooth operation of the equipment to avoid equipment problems caused by the decline in the quality of the slitting.

2. Ensure that the sharpness of the knife

Slitting tool sharpness is the core factor affecting the quality of slitting. Dull knives will lead to uneven cutting edges, burrs or self-adhesive material levels of tearing and other issues. For this reason:

Replace knives regularly: Depending on the frequency of use and the thickness of the slit material, replace or sharpen knives regularly to ensure that the knife edge is sharp.

Choose the right knife material: Different materials require different types of knives. For example, for film self-adhesive materials with high hardness, it is recommended to use high abrasion-resistant knives to ensure sharpness for long-term use.

3. Adjust cutting pressure and speed

The correct slitting pressure and speed can avoid problems such as burrs and uneven cuts when label slitting:

Pressure control: ensure that the cutting pressure is moderate, too large will lead to label deformation or edge tearing, and too small will not cut through the label.

Speed adjustment: according to the characteristics of the label material (such as thickness, hardness) to adjust the cutting speed, to maintain a smooth slitting process, to avoid cutting errors due to excessive speed.

4. Ensure uniform material tension

In the slitting process, the tension of the self-adhesive web must be kept uniform to prevent the material from wrinkles, sliding, and other problems when slitting. Specific measures include:

Tension control system: slitting equipment should be equipped with a good tension control system to ensure that the material in the slitting to maintain a consistent tension, to avoid label cutting is not neat.

Material quality: Use high-quality rolls of self-adhesive, to ensure that the edges of the rolls are neat, uniform thickness, to avoid slitting problems caused by uneven material.

5. Ensure the accuracy of the slitting width

The slitting width of self-adhesive labels must be in accordance with the design specifications, the error may be too large to cause the label can not be used properly. For this reason:

Strictly calibrate the equipment: Regularly calibrate the slitting equipment to ensure that the accuracy of the label width is within the margin of error.

Use positioning marks: During the slitting process, use clear positioning marks (e.g., markers or color coding) to help the equipment accurately identify the slitting position.

6. control slitting environment

Slitting working environment will also affect the label slitting quality. To ensure optimal slitting results:

Temperature and humidity: Ensure that the temperature and humidity of the slitting workshop is in the appropriate range, to avoid the thermal expansion and contraction of self-adhesive materials or humidity changes lead to slitting errors or material deformation.

Keep clean: Clean the slitting machine and work table regularly to prevent dust or other impurities from entering the slitting process and affecting the neatness and stickability of labels.

7. Conduct quality inspection

Regular testing of slit labels is the final step to ensure the quality of slitting. The following measures can be taken:

Visual inspection: check whether the edge of the label after slitting is neat, smooth, no burrs or warping.

Size testing: use professional measuring tools to measure the size of the label after slitting to ensure that it meets the specifications.

Paste test: The label is tested for actual application to confirm that there is no slitting deviation or problems affecting its use in actual use.

8. Reasonable production management and training

Ensure that operators have professional skills and understand the operation and maintenance of slitting equipment:

Personnel training: Regularly train the operators to make them skillful in the use of the equipment and the problems that may arise in the slitting process.

Production process management: establish a standardized production process to ensure that each step is subject to quality control and inspection to ensure the slitting quality of each batch of products.

Summarize

The key to ensuring the quality of self-adhesive label slitting includes choosing the right slitting equipment, keeping knives sharp, adjusting the appropriate slitting pressure and speed, controlling material tension, ensuring slitting accuracy, and strict environmental control and quality inspection. These measures can effectively improve the accuracy and neatness of the slitting, to ensure that self-adhesive labels in subsequent use of aesthetic and functional. If you need to further optimize the slitting process or select suitable equipment and materials, Garris can provide you with professional advice and support.