Cosmetic Pouch

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Barrier Property Testing of Cosmetic Packages

  Barrier property testing of packages is one of the vital testing items for cosmetic packages. Barrier property is the definition for barrier effect of packaging materials against gas, liquid and other permeable substances. Barrier property is the important factor affecting product quality during shelf life period.

  The unsaturated bonds in cosmetic ingredients are easy to be oxidized and deteriorated; the lost of moisture in the cosmetic would lead to hardening of cosmetics. Meanwhile, the fragrance of the cosmetics has great influence on the marketing of cosmetics. Barrier property testing includes the permeability testing of oxygen, water vapor and fragrant gas through cosmetic packages.

1?Oxygen Barrier Property Testing: This index is mainly for the oxygen transmission rate testing of films, laminated films, cosmetic pouches or bottles. Hereinafter, we take Labthink PERME OX2/230 Oxygen Transmission Rate Test System as the example. Clamp the preconditioned specimen in between the testing chamber, oxygen/air flows in one side of the film, and high pure nitrogen flows in the other side. Oxygen molecules migrate through the film and into the high nitrogen side, and are carried by the nitrogen flow to the sensor. With the oxygen concentration analysis of the sensor, the oxygen transmission quantity can be calculated. The testing principles of pouches and bottles are similar.

2. Water Vapor Transmission Rate Testing: is mainly for the testing of water vapor transmission rate of film materials and packaging containers like bottles, bags and cans. Through WVTR testing, technical indexes for control and adjustment of packaging materials can be achieved so as to meet the varied application needs. Take PERME W3/330 Water Vapor Transmission Rate Testing System as an example. Clamp the specimen in between the testing chamber, a flow of constant stable nitrogen flows in one side of the film and dry nitrogen flows in the other side. Owing to the humidity difference, water vapor would penetrate from the high humidity side into the low humidity side. The penetrated humidity (moisture) is carried by the dry nitrogen to the sensor, outputs electronic signal and then, calculates water vapor permeability quantity. For packaging bags and bottles, dry nitrogen flows inside the container and the outside is in high humidity state.

3. Fragrance Maintenance Testing: This Index is very important to cosmetics. Once the fragrance loses, there would be great influence on selling. Take PERME OR2/410 Organic Gas Transmission Rate Test System as example. In regulated temperature, separate the chamber into two halves by the specimen, with one side as dense fragrance side and the other low concentrated fragrance side; thus, forming a concentration difference between two sides. Fragrant gas will penetrate into the low concentration side and be carried to the isolation chamber by the carrying gas. Hydrogen flame ionization detector (FID) can measure the quantity of the fragrance gas and further calculate the fragrance gas quantity in a unit area within a unit time.

  Further information please feel free to contact Shirley Wu via trade2@labthink.cn, skype:shirley-labthink, MSN:shirleywu_labthink@hotmail.com or (tel)0086-531-85068709.

   Labthink, the excellent provider of testing instruments and testing services, is devoted to provide most excellent and complete quality control solutions for pharmaceutical, foodstuff, cosmetics, packaging, printing, adhesive, automotive, petrochemistry, environment, biology, new energy, construction, aviation and electronic industries worldwide.

About the Author

Should a lady mature gracefully?

We were discussing cosmetic surgery at the Women's Institute. I prefer to remain au naturel, but Baroness Gladys Sinew has had "work done". Unfortunately she now looks as though she has spent a week strapped to the wing of a Boeing 747 and has permanently surprised expression. She has pouches behind her ears that would be the envy of a hamster and her lips are puffed into a an orang-outang style pout. Do gentlemen prefer a woman to let nature take its course, or for her to fight off the ageing process with her cheque book?
Angela, I don't think men marry women for their faces. And if they really love the woman they will adore watching the person they married change over the years. Lines on a face give character.
It would seem unrealistic to me to want a women to keep the face she had on her wedding day, all her life!

Simple answer my dear.....NO......
Ive seen the results, Lavinia asked if I would accompany her to see the grand unveiling at the local Cosmetic surgery, for Georgina Laythwaite- Harrington- Gonreahhhh.
The bandages slowly were removed to reveal a picture of pure.............................................................horror !!!
Apparently she had lip enlargement, face lift, and acid peel.
Georgina was 45 at the time, but she looked nearly 78, and to be truthful it was very difficult to work out if we were looking at her lower abdomen, or her visage........ Though her lips did look inviting...... I think....
A personally like a women to grow older disgracefully, and thankfully You, my dear, are very very disgraceful ( moreso in those thigh boots of yours............grrrrrrrrrrrrrrrrrrrr )

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