do you know? A small straw also has many standards, such as uniform color and smooth outer wall; put it in 95 ℃ high temperature water without deformation or fading; in 1 ℃ ice water, there should be no cracks…
Q: What materials should be used for straws?
Answer: The production of straws must use food-grade, granular polypropylene (PP) as raw materials, powdered materials cannot be used, and recycled materials and waste materials must not be added.
Question: In terms of appearance, what kind of straw is qualified?
Answer: The straw should have uniform color, no stains and stains, smooth outer wall, flat cut, no bubbles, burrs, cracks, grooves, depressions, impurities, perforations and other defects. The corrugated forming of the bendable straw should be sharply angular, full of stiffness, neatly arranged, uniformly dense, and fully formed. These appearance details can be seen by consumers with a little attention.
Put it in 95% high temperature water
No deformation or fading
Question: Some straws are hard and some are soft. What are the standards?
Answer: The hardness of the straw depends on the thickness of the wall. The standard stipulates that the wall thickness of the straw shall not be less than 2% of the nominal diameter. Among them, the wall thickness of the pointed straw for wrapping paper shall not be less than 0.2mm. However, there are no special regulations on the softness and hardness of drinking straws, as long as it does not affect normal use.
Question: What are the requirements for the performance of the standard straw?
Answer: The bending ripples of the bendable straw should be less than 1% of the straws with breaks, breakages and cracks after slowly straightening. For temperature, there are double standards for heat resistance and cold resistance.
The test method is: put it in 95% high temperature water and put it in a 50% incubator for half an hour, and the straw will not deform or fade; put it in 1% ice water and place it in a 1 incubator for 30 minutes. crack.
Does not decolorize after soaking
Question: How to ensure that the colored straws are non-toxic and harmless?
Answer: From the sensory point of view, the straw must be “no peculiar smell or smell”. The color of the straw is mainly based on organic environmentally friendly pigments or color masterbatches, and the additives must be non-toxic and harmless, and meet the sanitary standards.
The test method is: put the colored straws into water, 65% alcohol, n-hexane solvent and 4% acetic acid solution respectively, and the soaking liquid should not have any color within 2 hours. If the straw is discolored, it is mostly caused by the toner not being well integrated with the raw material of the straw, causing the toner to separate from it when it encounters water.
The shelf life is not more than two years
Q: What are the requirements for the packaging of straws?
Answer: For straws that meet the standard, the product name, manufacturer, site, date of production, and shelf life are marked on the outer packaging bag of the product, as well as the straw material, heat-resistant temperature, cold-resistant temperature, and production license number. At the same time, there should be warnings for some products with special requirements. For example, pointed straws require children to be used under adult supervision, and some decorative straws require not to swallow.
In addition, the shelf life of unopened straw products should not exceed 2 years. The standard also stipulates that, under normal circumstances, if the product has defects due to materials or manufacturing processes within the warranty period, the manufacturer will provide free replacement.