plastic soft tube for face cosmetic cream lotion 30g

INTRODUCTION OF PLASTIC SOFT TUBE

    Cosmetic tubes manufacturers believe that the quality of the material is the key to ensure the quality of tubes, which will directly affect the processing and use of tubes. Plastic tube is made of polyethylene PE(for pipe body and pipe head), polypropylene PP(tube sleeve), color masterbatch, barrier resin, ink, varnish, etc. Therefore, the choice of any kind of material will directly affect the quality of the tube. However, the choice of materials also depends on hygiene requirements, barrier properties (requirements for oxygen, water vapor and fragrance preservation), chemical resistance and other factors.

          1. First of all, the materials used should meet the relevant health standards, and harmful substances such as heavy metals and fluorescent agents should be controlled within the prescribed range.

2. Barrier properties of materials. plastic soft tube for cosmetic cream lotion manufacturers believe that if the contents of the packaging of daily chemical companies are plastic soft tube for face cream with special oxygen (such as some cosmetics) or products with very volatile fragrance (such as essential oils or some corrosive chemicals such as oils, acids, salts), five-layer co-extruded tubes should be selected at this time. Cosmetic hose manufacturers believe that the oxygen permeability of five-layer co-extruded pipe (polyethylene/bonding resin /EVOH/ bonding resin/polyethylene) is 0.2 to 1.2 units, while the oxygen permeability of ordinary polyethylene single-layer pipe is 150 to 300 units. In a certain period of time, the weight loss of ethanol in the co-extruded tube is several times lower than that in the single-layer tube. In addition, EVOH is an ethylene-vinyl alcohol copolymer, which has excellent barrier properties and odor retention (the effect is better when the thickness is 15 to 20 microns). 

plastic soft tube for cream lotion 30g adopts high density HDPE and LDPE plus low density PE, which is matched in a certain proportion and achieves uniform mixing effect through high speed rotation. In this way, the soft and hard of the tube can be properly adjusted. Compared with single-layer pipe, the tube body is thicker and has better corrosion resistance.