It can be the selection of food-grade plastic containers from the quality of the following methods. First, look Plastic crates couplers. Couplers identify plastic containers in two ways, first is the common law, that is, under natural conditions, through food-grade plastic containers observed to see if a period of time, whether plastic crates coupler is consistent with the original, If not, then the quality is poor. Then chemical way is by using the principle of a chemical reaction between the substance to distinguish it good or bad. Under normal circumstances, put a little something in the basin of warm water, add detergent to the water to foam, then put plastic containers to food basin Paoshang night, until the next day to see whether food-grade plastic containers have faded signs, if you have to explain their poor quality, whereas quality is better. The second is to smell the odor. The use of recycled materials produced plastic containers smell, and the use of 100% new material of plastic containers, non-toxic and tasteless. Casino of SHG folded box of leaflets.
Medicinal polypropylene plastic bottles (covering) production instructions
Item Unit Quality requirement Properties - colorless, transparent cylindrical particles of a cleaning / kg ≤20 Density g / cm3 0.900 ~ 0.915
The residue on ignition% ≤0.1 5.2 titanium dioxide toner No. Item Index 1 of the dried powder-like soft or without grinding by means of a spatula easy to crush 2 TiO2 mass fraction of ≥90% 3 105 ℃ heat loss ≤0.5%
5.3 polypropylene bottle (covers) bottle inspection No. Item Standard requires an appearance should have a uniform color, smooth surface, non-skid after tight lid. Cover foil pad should be flat. It does not allow deformation, trachoma, obviously burr, scratches and black spots. Does not allow any air bubbles, oil and the like. 2 Size Press the acceptance criteria (or design drawings) requirements 3 Identification IR should be consistent with the control pattern density density should be 0.900 ~ 0.915 (g / cm3) 4 bottle and cap sealing tests shall cooperate appropriate, shall after sliding teeth, tighten the cap, placed in a container with a suction device, plus baffle, water immersion, was evacuated to a vacuum degree of 27kPa, maintain
2 minutes, the bottle may not have water or bubble phenomenon 5 defensive test from a height of 1.2m drops to the level of natural rigid smooth surface, water vapor can not be broken 6 weight loss should not exceed 0.2% 7 Residue on ignition residue left over 0.1 dissolution test solution was 8% clarity of solution should be clarified; such as significant turbidity, compared with No. 2 turbidity standard solution, not thicker heavy metal containing no heavy metals millionth pH value changes aqueous extracts of both liquid and water blank the difference should not exceed 1.0 UV absorbance was flooding with water blank solution as a control, 220 ~ 360nm wavelength of maximum absorbance of not more than 0.10 between the two oxides easily consume titration solution of not more than 1.5ml non-volatile liquid flooding poor aqueous extracts of the residue with its white fluid residue of not more than 65% of the difference between 12.0mg ethanol immersion ethanol immersion fluid residue of the residue and its blank should not exceed the difference between the immersion fluid residue of n-hexane residue infusion should not exceed its blank 50.0mg hexane 75.0mg 9 marking test soaking solution。
PBM Company is a Plastic Bottle Manufacturers, Plastic Water Bottle Manufacturers, Custom Plastic Water Bottles Suppliers, HDPE Bottle Manufacturers, Plastic Bottle Cap Manufacturers Website: www.plastic-bottle-manufacturers.com
Click image to view original image
