1, glass products are damaged, burst, gap, scraping hands can not be accepted.
2, glass products can not have deformation, mouth, bottom uneven and skewed.
3, bright glass can not be mixed with recycled materials, the product heart must be transparent and white, with no other noise, and the color of colored glass to be stable and pure, uniform and consistent.
4, whether manual blowing or machine blowing, glass thickness should be average, not thin and thick.
5, glass should be melted well and evenly, as far as possible to avoid stones (unmelted slag), and stripes. Bubbles and other defects.
6, No bubbles above 1CM in the glassware section (except for bubble effect glass), no more than two bubbles with a diameter greater than 2MM below the mouth, or no more than three bubbles with a diameter greater than 1MM. And the fact that bubbles gather together is not acceptable.
7, glass finished die, to fade temperature (fire) for about 8 hours, at least 6 hours back, in order to ensure the quality is stable, to prevent the long product will automatically burst. Glass bottles should have a certain thermal stability, from hot water bad to cold water bad, the general temperature difference in 39 degrees should be tested without damage.
8, the glass can not have too obvious water lines inside and outside, the outside surface and inside are not allowed to feel the line, such as obvious wrinkles, scars, wear marks, shear marks, and die lines, and the surface can not have cracks and insufficient defects.
9, Glassware mouth should be smooth and smooth, without burrs and bumps or defects.
10, the glass inside and outside must be clean, can not have sundries, dust, water stains, glass debris, and so on inside and outside the product. Glass products can not have rust, glass material can not contain black spots, dust, and other sundries. Note: the rust on glass products is usually caused by the rust of the clamps used to hold the glass and the rust of the mold during the melting and sticking to the glass. So. Whether the clamps and molds are rusted, it is necessary to remove rust before production to avoid this problem. In addition, it is necessary to avoid dust when dissolving materials. Impurities and other impurities fall into the material, resulting in internal impurities after forming the product.
11, add acid glass, before adding acid must avoid being stained with oil, otherwise, in the process of adding acid, there will be uneven pickling resulting in the local shiny phenomenon. After adding acid, be sure to clean the residual white powder inside and outside the glass.
12, decal paper products, decal paper to smooth, not skewed, can not have bubbles, generally to natural air drying 12 hours after baking, because of the flower paper in soaking will remain small droplets of water, small droplets of water when baking will top broken flower paper and lead to pinhole.
13, the size of the product should meet the requirements, the error should not be too large, and if you want to assemble the lid or other things, it should pay more attention to whether the caliber of the product meets the assembly requirements.
14, The appearance of the product is very important, but no matter what the product, the most important thing is to test whether the functionality of the product is intact.
15, glass is fragile, the product must be placed upright in the transportation, loading and unloading process, each product to use good paper, and want to use the egg to separate products, not each other collision damage, detailed packing method depending on the product and order request, but one thing, you must be aware of the packing of the product safety, ensure the export will not be broken, is safe.
16, in the inspection process, it is necessary to carefully check whether the packaging method of the product, the labels and contents used, the contents of the attached instructions, and the shipping marks inside and outside the box are correct.
