Adult product materials have to pass 3 tests
1. Oil leakage test
Performance status: After a period of storage, it naturally leaks oil, rots, and emits a strong pungent odor.
Reason: unqualified raw materials, incorrect raw material ratio, oil leakage of TPE is normal, for example, oil will leak after one month, but inferior TPE materials will leak oil within a short period of time, such as one hour Inside, and emits a strong pungent smell, then we need to pay attention at this time! For example, after one month of storage, toys made with unqualified TPE materials will rot.
2. Burning test
Performance status: It burns at one point and emits black smoke.
Reason: High-quality materials with toxic substances such as plasticizers are not easy to burn, and there is no burnt mark on the surface after being ignited. Inferior material TPE material is easier to ignite because of the addition of a large amount of plasticizer, and emit pungent plastic black smoke. After being extinguished, the scorched area will become black and emit a pungent smell. This is due to the problems caused by inferior TPE materials. This is for reference only. It does not mean that scorched products must be unqualified. Many qualified products will also have this condition.
3. Weak acid test
Performance status: pH test paper is red
Reason: Adding toxic plasticizers such as phthalic acid or phthalic acid, the pH value becomes strong acid, and the pH value of high-quality toys is 4-5 and weakly acidic. The inferior and high-quality materials were mashed and put into a container respectively, and after being soaked in weakly acidic purified water for three days, the pH paper test found that the high-quality materials were still weakly acidic, and the pH test paper was yellow-green and weakly acidic, which was consistent with the human body's pH value. . The inferior material was added with the carcinogenic additive phthalic acid. After the sample material was soaked in pure water for three days, the pH of the pure water was tested. The inferior product was red and highly acidic, which caused great harm to the human body.