Die-cutting of self-adhesive labels

Die cutting technology is a critical step in the manufacturing process of adhesive labels. Die cutting involves cutting the printed label material into the desired shape and size according to design specifications. It is achieved through the use of cutting machinery and die-cutting tools to precisely and efficiently cut the label material, resulting in the final adhesive label product.

The main steps involved in die cutting technology are as follows:

Tool preparation: The appropriate die-cutting tools are prepared based on the shape and size requirements of the labels. The selection of tool material and shape depends on the specific application and material to ensure accurate cutting results.

Material positioning: The printed adhesive label material is placed on the die-cutting machine and accurately positioned using a positioning device. This ensures that the cutting is performed in the correct position and direction as per the design requirements.

Cutting operation: The die-cutting machine cuts the label material according to the predetermined cutting path and the shape of the die-cutting tool. The cutting tool makes contact with the material and performs the cutting action through mechanical movement, while maintaining a stable cutting speed and pressure.

Waste material handling: After the die cutting process, it is necessary to remove the waste generated during cutting. These wastes typically include the edges of the label material or unused areas in the middle. Waste removal can be done manually or using automated equipment to maintain a clean and efficient workspace.

Inspection and packaging: The die-cut adhesive labels undergo quality inspection to ensure that each label meets the requirements in terms of shape, size, and cutting quality. Visual inspection or auxiliary equipment such as image detection systems can be used to inspect and screen the labels. Qualified labels are then packaged and prepared for shipment.

Die cutting technology plays a crucial role in the manufacturing of adhesive labels. It enables high-precision and efficient cutting processes to ensure that each label meets the design requirements. The development of die cutting technology has also driven innovation and diversity in label manufacturing, allowing adhesive labels to meet the needs of various industries and applications such as food packaging, pharmaceutical labeling, and logistics labels.

The die cutting methods for adhesive labels mainly include the following:

Flatbed Die Cutting: Flatbed die cutting is a common method suitable for smaller-sized labels with relatively simple shapes. It utilizes a platform-style die-cutting machine where the cutting tool makes contact with the label material through vertical pressure. Flatbed die cutting is applicable to various materials such as paper, film, and composite materials, delivering high-precision cutting results.

Rotary Die Cutting: Rotary die cutting is a high-speed and continuous method suitable for large-scale production and larger-sized labels. It uses a rotary die-cutting machine where the cutting tools are fixed on cylindrical knife seats and make contact with the label material through rotating motion. Rotary die cutting offers advantages of high efficiency and speed, making it suitable for various materials and complex label shapes.

Kiss Cutting: Kiss cutting is a special die cutting method used to create adhesive labels that adhere to a backing paper. In kiss cutting, the cutting tool only cuts to a certain depth of the label material without cutting through the backing paper, allowing for easy label peeling during application. Kiss cutting is commonly used for producing stickers, labels, and resealable tapes that require integrity and easy peel-off characteristics.

Laser Cutting: Laser cutting is an advanced non-contact die cutting technology. It utilizes a high-energy laser beam to precisely cut the label material, allowing for complex shapes and intricate details. Laser cutting offers flexibility and high precision, and it is applicable to various materials such as paper, film, and plastic.

By selecting the appropriate die cutting technology based on specific requirements and material characteristics, high-quality adhesive labels can be achieved.

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