Tel: +86 188 2689 9458
source:other news release time:2022-10-28 Hits:

Exterior visual effect inspection includes the flatness and clarity of the vacuum bag inspection and other new items. The key is to test whether the surface layer has significant scratches and needle holes, sealing has zero pollution, etc.
The actual way of appearance inspection is as follows:
1: vacuum bag surface metal wire drawing "inspection. Put the vacuum bag in the hand, pointing to 40w fluorescent light gently shaking, according to the composite bag surface refraction light, can clearly find the vacuum bag surface is not scratch or mark, the industry is often called "bag surface metal wire drawing". Most of the metal wire drawing conditions are caused by the plastic bag making machine pulling the correct guide roller is not clean, so it is necessary to ensure that the guide roller is clean. In addition, the guide roller does not rotate will make the vacuum bag caused by metal wire drawing common faults.
2: Check the flatness of vacuum bag. The vacuum bag is placed alone on the leveling table. If the surface layer is bent, warped outward or arched inward, it indicates poor flatness, and on the contrary, it indicates excellent flatness. The reason for the poor flatness generally has the following aspects: the temperature of the production bag is higher, has destroyed the in-situ stress tensile strength of the composite bag layer; Unscientific structure; The thickness of raw materials is not uniform.
3: Check the clarity of vacuum bag. For some products, clarity seems to be crucial because of the large scale of unpatterned designs. The INSPECTION MEANS OF CLARITY IS: EXTRACT BAG OF A PIECE OF FINISHED PRODUCTS, THROUGH THE INDIRECT LAMP SOURCE INSIDE THE ROOM TO VIEW CHECK, IF BLANK HAS "BLACK DOT", "RING THING", "FOG" AND OTHER CONDITIONS, SHOW CLARITY IS POOR, EXPLAIN CLARITY IS GOOD ON THE CONTRARY.
Read recommendations:
China Factory Baby Complementary Food Spout Pouch Baby Food Fruit Puree Bag With Spout Packaging Bag
Main Analysis Report on the Current Situation of the Bag in Box Industry
Popular recommendation
Custom Special Shaped Super Pouch Aluminum Foil 1.5L 3L 5L Stand Up Drink Juice Liquid Pouch With Va
Custom Laminated Printing Juice Bag Liquid Packaging Stand Up Plastic Water Spout Pouch
Smell Proof Stand Up Flat Bottom Pouch Coffee Bag /Coffee Beans Bag With Air Release Valve And Reusa
bag in box Processing
super pouch tool bag distributors
aluminium spout pouch manufacturer
stand up spout pouch Manufacturing
custom printed spout pouches
valve for coffee bag
bag in box packaging price
Common frozen food packaging materials.smart food Snack food bag
Common types of transparent vacuum packaging bags
Introduction to the functions, features and usage of spout bags
Composition of liquid bags
Will liquor vacuum bags affect the wine?
Several common coffee bag materials
What are the classifications of biodegradable plastic bags?
The production process and process of vacuum packaging bags
Compostable and Biodegradable Stand up Pouches -The Complete Guide
How to correctly choose plastic bags for food?
Characteristics of various food packaging materials
There are several main sterilization technologies for aluminum foil bags.Aluminum foil bag distribut
Regional culture in packaging: from minority to thousands of favorites
The production process of liquid packaging bags.spout pouches
What are the performance requirements of paper plastic composite bags?aluminum foil bag roll manufac
Analysis of the material of the food packaging bag.snack food bags wholesale
Why does the vacuum packaging bag leak?aluminium spout pouch manufacturer
High end tea packaging design, what wins?coffee tea pouch price
Production cost of packaging bags.pouch bag with handle Processing
How to design a packaging bag according to the product?recyclable retort pouch wholesaler