Introduction to cosmetics composite bags functional testing

Cosmetics composite bags detection project mainly includes: the blocking performance tests ( Gas through the test and water vapor through the test) And the coefficient of friction ( Material surface smooth performance) , tensile strength and elongation, peel strength, heat sealing strength ( Heat-seal strength) , sealing performance test and leak detection, impact resistance, thickness test, solvent residue detection and printing quality detection, etc. We combine cosmetics packaging testing instruments, talk about the cosmetics packaging for functional testing requirements, a performance test, cosmetics packaging testing instrument block block sex refers to the packaging materials for gas ( Such as oxygen) , liquid ( Water vapor) Such as infiltration of blocking effect. The blocking performance is an important factor affecting the quality of products during shelf period. Corresponding to use test instrument have gas permeability tester, oxygen transmittance test system, the differential method of gas permeation apparatus. Second, cosmetics packaging strength testing strength including tensile strength, peel strength composite film packaging materials, heat sealing strength, tear strength, durable thorn strength index. Tensile strength refers to the material before the snap under maximum stress value. Through detection can effectively solve the selected packaging materials for the mechanical strength is not enough, and in the packing damage and fracture caused by under the action of external force. Is also called composite strength and peel strength test of the composite membrane, the bonding strength between layer and layer if the adhesive strength is too low, is easy to use in the packaging of problems arising from the separation between the layers in leak. Heat sealing strength is testing the sealing strength, in the process of preservation of the product and shipping, once the heat sealing strength is too low, leads to heat sealing problems such as cracks, leakage of contents. Used the corresponding testing instrument mainly includes intelligent electronic tensile testing machine, electronic stripping machine, heat sealing test instrument, heat sealing gradiometer. Three, cosmetics packaging sealing performance test by sealing performance testing to ensure that the entire product packing seal is in good condition, prevent because of the bad product sealing performance and appear leakage caused by packaging. Used corresponding testing instrument including seal tester, leakage and sealing strength tester. Four, cosmetics packaging top air analysis headspace gas analyzer used in sealed bags, bottles, cans and other packaging, oxygen, carbon dioxide content in the determination of mix proportion; Suitable for production line, warehouse, laboratory and other occasions rapidly and accurately within the package on gas composition content and proportion to make evaluation, so as to guide production, ensure product shelf life. Five, the packing material of cosmetic packaging impact resistance performance test of impact resistance performance, to ensure that the choice of packaging materials can effectively protect the products. Impact resistance performance test are falling dart impact with the pendulum impact two test methods. Corresponding test instruments used include falling dart impact tester, film impact tester. Six, cosmetics packaging tear performance test: in the process of storage and transport packaging may be torn by external force, sufficient tensile extension force can reduce the rent, avoid packing leakage. Corresponding use of test equipment is tear. Seven, cosmetics packaging coefficient of friction ( On the surface of sliding may just as well) Food film should have appropriate internal and external surfaces of the sliding may just as well, to ensure its good opening and the production line can be transmitted smoothly at high speed and packaging. Corresponding use of test equipment with the coefficient of friction, the friction coefficient tester.