{"id":2253,"date":"2023-05-17T15:22:07","date_gmt":"2023-05-17T07:22:07","guid":{"rendered":"https:\/\/www.qualitester.com\/?p=2253"},"modified":"2023-11-27T09:55:37","modified_gmt":"2023-11-27T01:55:37","slug":"pet-bottle-mineral-water-beverage-bottle-and-bottle-cap","status":"publish","type":"post","link":"https:\/\/www.qualitester.com\/cs\/pet-bottle-mineral-water-beverage-bottle-and-bottle-cap\/","title":{"rendered":"Testov\u00e1n\u00ed kvality PET lahv\u00ed a uz\u00e1v\u011br\u016f - komplexn\u00ed pr\u016fvodce"},"content":{"rendered":"
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PET bottle refers to a plastic material called polyethylene terephthalate (polyethylene terephthalate), or PET for short, which is a compound of terephthalic acid and ethylene glycol. produced polymers. PET plastic has the characteristics of light weight, high transparency, impact resistance and not easy to break. It can also block carbon dioxide gas and keep soda water “gas”. PET bottles have strong applicability and are widely used in daily necessities, daily chemical packaging and other fields.<\/p>

PET bottles are reprocessed by blow molding to form plastic bottles, including bottles for cosmetics, medicine, health care, beverages, mineral water, reagents, etc. A method of blow molding to form PET plastic bottles.<\/p>

Quality inspection of PET bottles<\/p>

The routine testing of PET bottles includes verticality, bottle wall thickness testing, compression testing, cap opening, sealing and other testing items.<\/p>

The test items in this article are based on the standard<\/p>

QB2357-1998 polyester (PET) non-carbonated beverage bottle<\/p>

GBT17876-2010 Plastic anti-theft caps for packaging containers<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Vertikalita<\/p>

According to the provisions of 5.2.4 in QB1868.<\/p>

T\u011bsnic\u00ed vlastnosti<\/p>

Fill 5 sampling bottles with water of nominal capacity and twist (buckle) the cap tightly. Place the sample horizontally on a plane for 8 hours before checking.<\/p>

Vertical load<\/p>

Place five sampling bottles at 23\u00b12\u00b0C for more than 2 hours, apply vertical pressure on the sample bottles at a constant speed of 100mm\/min on the testing machine, record the maximum load of each sample for the first time, and take the arithmetic mean value.<\/p>

V\u00fdkon p\u0159i poklesu<\/p>

Fill 5 sampling bottles with water at 20\u00b15\u00b0C according to the nominal capacity, cover them well, and conduct a drop test on the concrete floor. The drop height is 1.8m, the bottle mouth is upward, and it falls freely.<\/p>

P\u0159ehled polo\u017eek testu uz\u00e1v\u011br\u016f lahv\u00ed<\/p>

Zkou\u0161ka t\u011bsnosti<\/p>

Pomoc\u00ed uzav\u00edrac\u00edho stroje ut\u00e1hn\u011bte uz\u00e1v\u011br pro neperliv\u00e9 n\u00e1poje podle jmenovit\u00e9ho utahovac\u00edho momentu, kter\u00fd spl\u0148uje po\u017eadavky, prove\u010fte zkou\u0161ku t\u011bsnosti pomoc\u00ed testeru t\u011bsnosti, natlakujte na 200 kPa, udr\u017eujte tlak pod vodou po dobu 1 minuty, sledujte, zda nedoch\u00e1z\u00ed k \u00faniku vzduchu, pot\u00e9 zvy\u0161te tlak na 350 kPa a udr\u017eujte tento tlak po dobu 1 minuty, sledujte, zda se uz\u00e1v\u011br l\u00e1hve neuvoln\u00ed a nevysko\u010d\u00ed.<\/p>

Pomoc\u00ed uzav\u00edrac\u00edho stroje ut\u00e1hn\u011bte uz\u00e1v\u011br s oxidem uhli\u010dit\u00fdm podle jmenovit\u00e9ho to\u010div\u00e9ho momentu, kter\u00fd spl\u0148uje po\u017eadavky na uzav\u00edr\u00e1n\u00ed, od\u0159\u00edzn\u011bte bezpe\u010dnostn\u00ed krou\u017eek, prove\u010fte zkou\u0161ku pomoc\u00ed testeru t\u011bsnosti, natlakujte na 690 kPa, udr\u017eujte tlak pod vodou po dobu 1 minuty, sledujte, zda nedoch\u00e1z\u00ed k \u00faniku vzduchu, a pot\u00e9 zv\u00fd\u0161te tlak na 1207 kPa, udr\u017eujte tlak po dobu 1 minuty a sledujte, zda v\u00ed\u010dko l\u00e1hve nevysko\u010d\u00ed.<\/p>

V\u00fdkon p\u0159i poklesu<\/p>

Po napln\u011bn\u00ed l\u00e1hve jmenovit\u00fdm objemem vody uzav\u0159ete l\u00e1hev pomoc\u00ed uzav\u00edrac\u00edho stroje neperliv\u00fdm uz\u00e1v\u011brem v souladu s jmenovit\u00fdm utahovac\u00edm momentem, kter\u00fd spl\u0148uje po\u017eadavky na uzav\u00edr\u00e1n\u00ed, a prove\u010fte zkou\u0161ku podle n\u00e1sleduj\u00edc\u00edch po\u017eadavk\u016f, abyste zjistili, zda uz\u00e1v\u011br neodl\u00e9t\u00e1v\u00e1 a zda nedoch\u00e1z\u00ed k \u00faniku tekutiny.<\/p>

After filling the bottle with carbonated water with a nominal capacity of Chinese 4.2\u00b10.1 volume of carbon dioxide, use a capping machine to seal the carbonated cap at a fixed torque that meets the capping requirements, and test according to the following requirements to observe whether the cap is flying off and whether the seal is Leakage<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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