What should the coating nonwoven bag from, to detect the quality？

What should the coating nonwoven bag from, to detect the quality？

Non-woven environmental protection bags are more and more loved by everyone, especially the film non-woven bag, beautiful style, can print a lot of good-looking patterns, but there are some poor quality bags on the market, so many customers in custom-made film nonwoven bag do not know from what aspects to test product quality, for this problem for you to summarize the following points, You can have a look.

Film nonwoven bag display

First, detection of the color difference of the nonwoven bag of the cladding

Covering non-woven bags are mostly color patterns or some characterlandscape and other patterns, because the coating non-woven bag needs to be pre-printed to make electric engraving, electric engraving production of good and bad directly affect the effect of printing out, then how to judge the quality of the electric engraving plate? We look at the printed color deviation, color deviation is mostly due to the production of the film carving depth reasons. Inspection of the film non-woven bag to see its color difference problem, but because the defects of the gravure printing press plate often can not be made entirely according to the color value on the document, this needs to plate the company's experience, so the color difference of the film nonwoven bag can be controlled within the acceptable range OK. If the color is not a problem on the check set color problem, the set of not allowed pattern will not be clear and fuzzy, that means this bag is not up to standard.

Second, detection of the pull of the film nonwoven bag

Now the vast majority of the market coating nonwoven bag cloth is used in B or C grade material, we are called coating material. In recent years, the non-woven bag industry competition is too fierce so there has been mixed with a lot of recycled mulch, because the outer layer of non-woven cloth coated a film so can not see the gloss of the cloth itself, so some manufacturers for their own interests will choose recycled materials to produce, and recycled materialproduction production of the laminate nonwoven bag pull strength will be directly affected, Another cloth after the coating will reduce the flexibility of the cloth will appear brittle and tearing the situation. So the customer in the detection of the film non-woven bag when you have to pull a cloth by hand, to see its pull strength is good or bad.

Third, detection of the weight of the cladding non-woven bag

Some non-woven bag manufacturers for their own interests will choose to steal cutting materials, not according to customer requirements of the cloth to re-produce. For example, customers ask 80 grams of non-woven coating, then the film should reach 105 grams or so, if you get the film nonwoven bag and this number of differences, that means the manufacturers steal cutting material.

Four, test ingenuity non-woven bag production is flat and beautiful

We all know that ultrasonic mulch nonwoven bag than the seams to be more refined, corner line because the machine according to the mold automatically generated, the specifications are relatively uniform, there will not be seam slit slit slit joints and seam skewed phenomenon. So the customer to get the bag to check whether the bag production is flat and beautiful, to see if there is a crooked bag now like appears.

In fact, the market unqualified film non-woven bags after all is only a few, we understand the above detection methods are not afraid to encounter similar problems. Chengdu non-woven bag manufacturers produced mulch nonwoven bag mainly has two styles, one is ultrasonic one-piece molding film nonwoven bag, one is the seam coating non-woven bag, but one-piece molding cladding bag used more generally, because this process of production of film nonwoven bag mechanization than sewing is higher, the error rate than sewing will be lower, There will be no seam break joints and seam crooking phenomenon, and this process of production and shipment fast, can meet the customer's large quantity of custom demand.