Quality Inspection Method And Standard Of Napkin Raw Material

Sanitary napkins are commonly used sanitary products for women, and are known as one of the "Top Ten Inventions Affecting Human Beings in the 20th Century". This paper briefly introduces the quality inspection methods and standards of napkin raw material.

Napkin raw material

1. Envelope: measure the strength of horizontal and vertical tension, not easy to tear (hand feel), purity (no impurities, no black spots, no clouds, smooth hand feeling under normal light), if there is any printed content, it must be printed correctly, clearly, and not running Version.

2. Bottom film (breathable film): strong longitudinal tension, not easy to tear (hand feel), purity (no impurities, no black spots, no clouds, smooth feel under normal illumination), air permeability test (take 1 small piece of bottom film material Cover the cup with hot water, put a dry transparent cup on top of the film, and see if there is fog in the transparent cup for about 1 minute. If there is fog, it is a real breathable film).

3. Perforated film (mesh surface): strong tensile force is not easy to tear (hand feel), the surface layer is not dull, the hand feel is smooth, the mesh has a strong three-dimensionality, fast penetration and no residue on the surface layer (take a piece of napkin raw material, in Pour tap water on the surface and observe the penetration speed of tap water. If it can penetrate quickly, the surface layer has no residue, and the dry mesh surface material is relatively superior).

4. Non-woven fabric (cotton surface): strong tensile force, not easy to tear (handfeel), smooth to the touch, light rubbing surface layer is not easy to fluff, fast penetration and no residue on the surface layer (take a piece of material, pour tap water on the surface, observe the tap water The speed of penetration can be quickly penetrated, the surface layer has no residue, and the dry surface layer material is relatively superior).

5. Puffed paper (dust-free paper): uniform thickness, less dust, white and free of impurities, no dirty spots, no foreign matter, specifications (consistent with the order).

6. Water absorption body: polymer type (test water absorption), the polymer must be crystal clear after absorption, not paste, must be able to quickly absorb liquid, white and no impurities, no dirty spots, no foreign matter.

7. Wood pulp: white and clean, no impurities, no dirty spots, no foreign matter, evenly crushed, no hard lumps.

8. Glue (back glue, structural glue, wing glue, three-point glue, breathable glue): glue does not turn yellow, the viscosity is suitable, continuous glue, does not tear the bottom film, the three-point glue can not be too strong, tear the envelope .

9. Release paper: Purity (no impurities under normal light), good gloss, uniform silicon coating on one side, and must be able to be completely peeled off from the adhesive or wing adhesive. If there is any printed content, it must be printed correctly and clearly , do not run the version, the color is the same as the sample.

10. Small stickers (A and B sides): do not stick upside down, the film can be opened smoothly (there is a 2MM long position at the opening of the small sticker without adhesive); stickiness (neutral, not tearing the film); specifications (the same size) , the position is centered, not trapezoidal, not rhombus).

11. Packaging bag (color box): The printing is correct and clear, without running the version, the number of pieces in the bag or box is the same as the number required for printing, not more and not more, the direction of the product into the bag and the box is correct, the overall packaging effect Plump, beautiful, neatly sealed, no fuzz, and not easy to burst.

12. Carton: The printing is correct, clear, not running, the cardboard is hard enough, not too soft, the viscose is not nailed (to prevent scratching the packaging), the color is consistent with the sample, the material and specification, and the number of boxes is consistent with the order requirements. It must be transparent sealing glue (except for special requirements, such as yellow sealing glue for individual requirements), without any factory information. Pay attention to the structure of the carton: it is divided into a full-wing box and a normal box.

Sanitary napkins are popular among women because of their strong water absorption, comfortable use, and easy portability. Understanding the quality testing methods and standards of napkin raw material will help women better choose and use sanitary napkins.