Top-line packagingTel: +86 188 2689 9458

Top-line packagingEmail: info@toplinepackaging.com

Top-line packaging
Top-line packaging

How to check the shape of the vacuum bag?

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:

Coffee & Tea pouch

spout pouch serves Solution

bag in box packaging custom

How to choose pet food packaging bags?

What are the main components of degradable plastic bags?

Popular recommendation

Kraft paper pouch

Pouch with handle

3L 5L Bag-In-Box Wine Dispenser Coffee/ Juice/ Water/ Oil Bag-In-Box With Valve

clear spout pouch maker

pouch with handle company

eco friendly spout pouches Factory

recyclable spout pouches wholesaler

smart food Snack food bag wholesaler

juice bag in box

bag in box Factory

Why are water packaging bags not suitable for long-term storage?liquid spout bag

Several common coffee bag materials

How to inflate the packaging bag of puffed food?

There will be several "small holes" on the top of the coffee pouch bags, so what is the my

liquid pouch with spout Factory.Introduce the materials of food packaging bags

How to deal with the discoloration of food packaging bags?

Liquid bags: making agricultural input packaging more efficient

The development trend of domestic food packaging.vanishing coff packaging bag Processing

Food packaging bag.plastic pouches for food packaging

bag for food packaging.What are the application scope of composite packaging bags

The application of reactive packaging technology will become a trend

pouch with spout Factory.What hazards do unqualified food packaging bags bring

Why does facial mask use aluminum foil as packaging bag?

Is there any attractiveness of the eight -sided seal packing cat food bags?petco free dog food bag P

How to choose aluminum foil packaging bags?

Matters needing attention about food nylon vacuum bag

What should be noted when choosing frozen food packaging bags.flexible packaging film roll pouches M

Tell you the factors that affect the food packaging bag.petco free dog food bag

Function of Packaging Bags

What are the reasons for the continuous rise in the BIB market.custom stand up pouch

Share:

Email

Wechat Whatsapp

Leave Your Message