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:
Custom printed food grade ziplock snack custom plastic pouch packaging food packing bag
spout pouch packaging supplier
Various common sense of plastic packaging bags.valve plastic coffee bag
stand up ziplock kraft paper pouch supplier.Professional supplier of composite packaging bags
Popular recommendation
3L 5L Bag-In-Box Wine Dispenser Coffee/ Juice/ Water/ Oil Bag-In-Box With Valve
Custom Laminated Printing Juice Bag Liquid Packaging Stand Up Plastic Water Spout Pouch
China Factory Baby Complementary Food Spout Pouch Baby Food Fruit Puree Bag With Spout Packaging Bag
aluminium spout pouch Factory
custom printed spout pouches
bag in box wine Production
Spout pouch Vendor
wine bag in box Processing
bag in box packaging custom
coffee grinds pouches distributors
sideguesst bag for coffee bag distributors.The number of packaging layers of moon cakes and Zongzi s
The advantages and development prospects of aluminum foil bags
Christmas coffee bag(R1)
The origin of aluminum foil bags!aluminum foil bags for cooking distributors
New machine 1L-250L April,17,2023
The production process of sterile bags
How are the bags classified?
Development history of vacuum bag technology
How to distinguish the quality of OPP card head plastic bag?
Aluminum foil vacuum packaging and transparent vacuum packaging.gusset aluminum foil bag distributor
What are the bag materials
The price of fruit juice bags is influenced by the following factors.beverage bag manufacturers
The magic of packaging bags.
The significance of bags in sterile boxes
How to use nylon vacuum bag
Introduce the characteristics of Vacuum Zipper Bags
Analysis on the Development of Aluminum Foil Bags in the Current Industry
Composite packaging film printing material affects the quality of packaging.stand up spout pouch man
paper snack food bag Solution.Introduce the precautions for using food packaging bags
clear spout pouch custom.How to choose food packaging bags