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:

Super pouch

flexible packaging films Vendor

spout pouch bag

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

Packaging bag management

Popular recommendation

Custom Portable Reusable Drink Bags Stand Up Plastic Spout Pouches For Beverages Liquid Packaging

Kraft paper pouch

Aluminum foil bag

clear spout pouch company

smart spout pouch Factory

pouch with handle supplier

spout pouches Vendor

eco friendly spout pouches Manufacturing

stand up spout pouch manufacture

smart food Snack food bag wholesale

Method of using electrostatic adsorption for thermal shrinkage of plastic packaging.Vacuum zipper ba

Thermal insulation: the guardian of temperature

Introduction to liquid packaging methods

Type of bag

The convenience of coffee bags

The origin of aluminum foil bags!disposable aluminum foil bag

Common frozen food packaging materials.smart food Snack food bag

Requirements for fertilizer packaging bags.

Features and uses of textured vacuum bag

Packaging bag printing type.recyclable spout pouches supplier

Form of food packaging bags.food packaging supply companies

What is the purpose of the barcode on food packaging bags?

The high-quality characteristics of food composite bags play a key role in the market.biodegradable

Convenient circulation of packaged food

Vacuum and vacuum inflatable soft packaging of food

What is the production process for liquid packaging bags.stand up spout pouch manufacturers

Basic elements of packaging bags.bag in box sales

Talk to you some information about Plastic Bubble Mailer Bags.Bubble mailer bag Factory

Before printing on soft packaging, determine the types and usage methods of water-based ink additive

Composite packaging bag

Share:

Email

Wechat Whatsapp

Leave Your Message