Long press the QR code to follow, Customize your exclusive packaging
How is the production quality of aluminum packaging bags ensured?
Release time:2019-12-05
During the production of aluminum-washed packaging bags, common quality issues include inaccurate color matching, insufficient gloss varnish cleanliness leading to varnish blade clogging, improper ink application due to problems with the gloss varnish solvent ratio, damage to the ink layer after aluminizing, high residual solvent, and incomplete cleaning of the aluminum. If these quality issues are not detected promptly, the produced aluminum-washed packaging bags will be substandard.
During the production of washed aluminum packaging bags, common quality issues include inaccurate color registration, insufficient varnish cleanliness leading to varnish blade clogging, poor inking due to solvent ratio problems in protective varnish, damage to the ink layer after aluminizing, high residual solvent, and incomplete washing of aluminum. If these quality problems are not detected in time, the produced washed aluminum packaging bags will be substandard products.
Therefore, Shunxingyuan Packaging, a professional flexible packaging manufacturer, shares its production experience to explain how the original factory ensures the quality of washed aluminum packaging bags.
I. Ensuring Accurate Overprinting
During printing, in addition to the various transparent inks required for the normal pattern, a layer of high-temperature resistant varnish must be printed on the pattern position, and a layer of water-soluble varnish must be evenly applied to the blank area. Therefore, it is necessary to strengthen the monitoring and control of ink, high-temperature resistant varnish, and water-soluble varnish color registration.
II. High-Temperature Resistant Varnish Quality Control
1. Accurate varnish ratio; otherwise, poor inking and damage to the ink layer after aluminizing may occur;
2. Varnish mixing time; after the sample is approved during production, then mix. This process requires a dedicated person to avoid glue solidification;
3. Varnish cleanliness control; before printing, use a filter screen to filter the high-temperature resistant varnish to reduce the occurrence of varnish blade problems.
III. Water-Soluble Varnish Control
1. Poor inking of water-soluble varnish, leading to aluminum layer penetration;
2. Water-soluble varnish drying issues; try to use original ink for printing;
3. Cleanliness control of water-soluble varnish; before printing, use a filter screen to filter the water-soluble varnish to reduce the occurrence of blade marks and printing fog.
IV. Residual Solvent Control
Residual solvent must be controlled, otherwise it will directly affect the vacuum degree.
V. Printing Roller Control
1. Use new rubber rollers to ensure uniform inking of varnish and water-washable ink;
2. Inspect the quality of the inking rollers to ensure uniform ink transfer.
VI. Doctor Blade Control
Doctor blade control: Reduce lint and poor inking caused by doctor blade wear and tear; use ceramic doctor blades.
These control points require long-term debugging and exploration to determine the process parameters. Choosing the right manufacturer of washed aluminum packaging bags can greatly reduce the quality risks of washed aluminum packaging.
Related Information
Proper use of food packaging bags
Nowadays, many food products are packaged in plastic bags, mainly for convenience and hygiene. However, for consumers, understanding the materials of food packaging bags is also a keyword. Below, Shunxingyuan Packaging, a professional flexible packaging manufacturer, will give you a detailed introduction to the material identification methods of food packaging bags.
What types of clothing packaging bags are there? What is their scope of application?
Generally speaking, clothing packaging bags are mainly made of PE, PO, PP and other materials, and are widely used in shirt, knitting, clothing, textile and other industries. They are mainly used to package clothes and display brand image products, so clothing packaging bags are also a good advertising platform.
What is a gusseted bag? What are the benefits of using gusseted bags?
With the continuous development of the times, people's consumption concepts are also constantly changing, and people's pursuit of quality of life is also constantly improving. Taking food as an example, the quality of food packaging bags directly affects consumers' desire to buy. A beautiful and exquisite food packaging bag can instantly improve the grade of the product itself and add value to the product. Below, Shunxingyuan Packaging, a professional flexible packaging manufacturer, will analyze what an eight-side sealed bag is and what are the advantages of an eight-side sealed bag?
Tel：+86769-87930196
Mobile：+86135-4929-7179
Fax：+86769-87930197
Website：https://www.dgsunpak.cn/
Address: No. 3, Yuanfeng Road, Hengtang Community, Tangxia Town, Dongguan City
Scan to identify and follow:
Scan code to follow and consult