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There are always irregular silk threads on the blank space of the packaging bag, this problem must be taken seriously!

Irregular streaks in the blank areas of packaging bags usually appear as intermittent, irregularly long or short ink marks, often relatively thick. Shunxingyuan Packaging, a professional flexible packaging manufacturer, mainly explains this phenomenon from three points: foreign matter adhering to the doctor blade edge or under the blade, insufficient ink circulation, and ink fatigue, and provides solutions.

2019-08-28

Causes and solutions for uneven background color of packaging bags

Uneven base color of packaging bags refers to the presence of irregular spots or pinholes with varying density in large-area spot colors. Generally, base colors with gradient transitions are prone to uneven ink scraping, while pinholes often appear on solid base colors (without gradient transitions). Therefore, uneven base color is further classified into uneven base ink scraping and base pinholes.

2019-08-23

Summary of common issues with packaging bags, covering all problems like damage and warping.

During the processing of packaging bags, problems such as damage, brittle sealing, and breakage often occur. Shunxingyuan Packaging, a professional flexible packaging manufacturer, has summarized these common problems and provided detailed answers on how they occur and how to solve them.

2019-08-10

Four common problems in packaging bag making, and we have a solution!

Poor heat sealing strength refers to the strength of the sealing position being lower than the standard requirement.

2019-08-08

What should I do if the composite packaging bag has small spots, fog, wavy fish scales, and mushroom cloud patterns?

Many plastic composite packaging bags require high transparency and use a large area of blank base films BOPP and CPP. However, in the composite process, sometimes the transparency of the plastic composite flexible packaging is poor or decreases, such as the finished product appearing "hazy", with "small spots", "wave fish scales", "silk texture", "mushroom umbrella clouds", "water drop splashing", etc., affecting the transparency of the composite product, and in severe cases even causing the composite product to be scrapped.

2019-07-14

Five main factors contributing to color difference in packaging bags have been identified.

Generally, the use of ink goes through small sample, pilot test, intermediate test, large-scale test, and mass production. At each stage, printing samples and ink smears should be saved to evaluate the color consistency of the ink supplier. This is the first step in avoiding color difference.

2019-07-04

Common problems and effective solutions for zipper bags

Among the wide variety of packaging bags, zipper bags are quite popular and convenient to use. However, although zipper bags are widely used in many industries on the market, it is not easy to produce qualified and standard zipper bags during the bag-making process.

2019-06-24

Total bag breakage during retort sterilization? Pay attention to these 2 points!

During high-temperature sterilization, the residual gas inside the high-temperature cooking pouch expands, the volume of the contents increases, and the pressure inside the pouch rises. When the internal pressure exceeds the pouch's capacity, the pouch will burst if the pressure in the sterilizer is lower. To ensure that the cooking pouch does not burst during sterilization, Shunxingyuan Packaging, a professional flexible packaging manufacturer, believes that the following measures should generally be taken.

2019-06-20

How to solve quality issues such as small ink dots, small crystal points, and wavy lines on the surface of packaging bags?

Many companies, when using packaging bags to package their products, will find upon close inspection that there are small flaws on the packaging bags, such as small ink spots, small crystal points, wave patterns, small gray spots, small white spots, and small scar spots, which occur from time to time. What is the cause of this? Are there any solutions?

2019-05-31

What causes vacuum packaging bags to inflate during storage?

Recently, several clients have reported that after upgrading their packaging, many of their packaged bags showed a significant increase in the number of air pockets and a significant decrease in vacuum after two weeks, seriously affecting product quality. What should be done? Today, Shunxingyuan Packaging, a professional flexible packaging manufacturer, will analyze the causes and solutions of bag swelling during storage based on its own experience.

2019-05-24

Common problems such as bloating, fogging, and fish eyes in packaging bags, and solutions

During the shrink wrapping process, some problems are often encountered, such as air bubbles, fogging, and fish eyes in the shrink film. These problems can be corrected by adjusting the machine settings. The most common methods are adjusting the temperature, air circulation speed, conveyor belt speed, number of vents, and size of the shrink film of the packaging machine.

2019-05-18

50 FAQs on Packaging Bag Quality Management, you will definitely find it useful

We have asked others about some quality issues, and some quality issues have been asked by others. Shunxingyuan Packaging, a professional flexible packaging manufacturer, has specially compiled 100 frequently asked questions about quality management. Let's test yourself. Can you answer all these questions? It is recommended to collect!

2019-05-13

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