What equipment is needed to make bag making products in Dalian?

As an important component of modern packaging, bag making products come in a wide variety of types and are widely used. With the advancement of technology and the improvement of environmental awareness, the bag making industry is developing towards a more environmentally friendly, intelligent, and efficient direction. In the future, bag making products will play an important role in more fields, bringing convenience and security to people's lives and industrial production.

The production process of bag making products. Blowing film: The first step in making plastic bags is to heat and melt plastic particles using a blown film machine and blow them into a thin film. Printing: Printing patterns and text on film or paper. Common printing methods include gravure printing, flexographic printing, screen printing, etc. Bag making: The printed film or paper is cut, heat sealed, folded, and processed by a bag making machine to produce various shapes of bags.

What equipment is needed to make bag making products in Dalian?

Printing equipment

Gravure printing machine: High printing quality, bright colors, high saturation, suitable for large-scale printing. Its printing plate has strong printing resistance and can print fine patterns and text. It is commonly used in bag making products that require high printing quality, such as food packaging bags, cosmetics packaging bags, etc.

Flexographic printing machine: It has the characteristics of environmental protection and high efficiency, with fast printing speed, suitable for printing various materials, including paper, plastic film, etc. Its plate material cost is relatively low, and it can achieve short plate printing, which is more suitable for printing small batches and multiple varieties of bag making products.

Digital printing machine: No need for plate making, can directly print digital files onto materials, can quickly achieve personalized printing, suitable for small batch, customized bag making product production, such as packaging bags with customer specific identification, patterns or variable data.

Composite equipment (for composite material bag making)

Dry laminating machine: by coating adhesive on the surface of one material, and then laminating it with another material after drying. This device is suitable for the composite of multiple materials, with high composite strength, and can meet the requirements of different products for packaging bag performance, but the equipment cost and operating cost are relatively high.

Wet laminating machine: It involves applying water-based adhesive between two materials and directly laminating them without the need for a drying process. Its advantages are low cost and good environmental friendliness, but the composite product requires drying treatment, and the composite strength is slightly lower than that of dry composite. It is commonly used in some cost sensitive ordinary bag making products.

Extrusion laminating machine: After heating and melting plastic particles, they are extruded into a thin film shape through an extruder, and then combined with other materials under the action of a pressure roller. This type of equipment has high production efficiency, and the composite product has good heat sealing and moisture resistance properties. It is commonly used for the composite of plastic film and paper, plastic film and aluminum foil, and other materials.

Bag making equipment

Three sided sealing bag making machine: mainly used for making three sided sealing bags, it is one of the common bag making equipment. It can cut, fold, and seal printed or composite materials according to the set size, with simple operation and high production efficiency, suitable for making packaging bags of various materials.

Four sided sealing bag making machine: used for producing four sided sealed bags. By folding the material in half and sealing the four sides, the bag has better sealing and stability. This type of equipment is commonly used for packaging fine powders and granular products.

Self standing bag making machine: specially used for making self-supporting bags. During the bag making process, the equipment will perform special structural treatment on the bottom of the bag to enable it to stand on its own. Self standing bag making machines usually have a high degree of automation and can complete a series of processes from material conveying, printing, bag making to finished product output.

Zipper bag making machine: During the bag making process, a zipper will be installed at the opening of the bag, making it convenient for users to open and close the bag multiple times. This device needs to be used in conjunction with a zipper installation device and can be adjusted according to different bag sizes and zipper specifications.

auxiliary equipment

Slitting machine: Cut large rolls of packaging materials according to the required width for subsequent bag making processing. The accuracy of the slitting machine directly affects the dimensional accuracy of the bag making products. There are manual slitting machines and automatic slitting machines to choose from, with automatic slitting machines having fast slitting speed and high accuracy.

Punching machine: used to punch and cut various shapes of openings on bags, such as handle holes, easy to tear openings, etc. The mold of the punching machine can be replaced according to different design requirements to meet the needs of different bag making products.

Heat sealing machine: heats and seals the seal during the bag making process to ensure good sealing of the bag. There are various types of heat sealing machines, such as flat plate heat sealing machines, roller heat sealing machines, etc. The appropriate heat sealing machine can be selected according to the material and sealing requirements of the bag.

Quality inspection equipment: including tensile testing machine, sealing tester, thickness tester, colorimeter, etc. Tensile testing machine is used to test the tensile strength of bags; The sealing tester can detect the sealing performance of the bag; The thickness tester is used to measure the thickness of packaging materials; The colorimeter is used to detect the accuracy of printing colors and ensure that the quality of bag making products meets standards.

With the continuous development of the global economy and the diversification of consumer demand, the bag making product market is showing a steady growth trend. Especially in emerging fields such as environmentally friendly packaging and intelligent packaging, bag making products have broad development space. In the future, the bag making industry will pay more attention to technological innovation, the application of environmentally friendly materials, and intelligent production to meet the market's demand for high-quality and environmentally friendly packaging products.

Materials for bag making products. Plastic: Polyethylene (PE), polypropylene (PP), and other common plastic materials for bag making. Plastic bags have the characteristics of being lightweight, waterproof, and durable, and are widely used in supermarket shopping bags, garbage bags, food packaging bags, and so on. Paper: Kraft paper, white cardboard, etc. are common bag making paper materials. Paper bags are environmentally friendly and recyclable, commonly used for gift packaging, food packaging, shopping bags, etc.