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Do you know how many materials diapers are made of?

  • Release on:2019-12-03
The surface layer is one of the main constituent materials of baby diapers, and it is also a very important part. The surface layer is in direct contact with the baby, so the comfort of the surface layer will also directly affect the baby. The following are the performance requirements of each component of the diaper and the choice of nonwovens.

1, surface layer(Hydrophilic Nonwovens Wholesale)

The surface layer is the part directly in contact with human skin, so it is required to be dry, comfortable and soft. During the use of diapers, urine needs to pass through the surface layer quickly, so the surface layer needs to have good hydrophilic properties, and it can be penetrated multiple times with less back osmosis. Currently, the diaper surface layer on the market mainly uses spunbond and hot air nonwovens. Ten years ago, 80% of the diaper surface layer was made of spunbond nonwovens. In recent years, people's pursuit of the softness and comfort of diapers has become more and more intense. Hot air nonwovens have been increasingly Apply to the surface layer. The spunbond nonwoven has high strength, good water absorption, and is dry and comfortable. It is still one of the main materials of the surface layer. Through the improvement of the formula and the modification of the equipment, the softness of the spunbond nonwoven fabric is greatly improved, but the fluffy feel is still not as good as the hot-air nonwoven fabric. Fast penetration, dryness, softness, and cotton feel are the development trends of the surface layer.

2. The bottom layer

The role of the bottom layer is to prevent urine from leaking out. Early diapers mainly used PE film as the bottom layer. As consumers' requirements for comfort increased, the bottom layer of non-woven fabric and PE film came into being. The softness of the bottom layer is one of the important basis for consumers to judge the softness of diapers. Therefore, in addition to the characteristics of imperviousness, less fluff, and strong strength, the non-woven fabric for the bottom layer must have a soft-feeling touch and be wear-resistant. At present, because of its low cost, good abrasion resistance, softness and lightness, spunbond nonwovens(Soft Nonwovens Company) are the main materials for nonwovens for bottom layers. However, due to the soft and fluffy characteristics of hot air nonwovens, many paper diaper products have been converted to hot air nonwovens in recent years. However, hot air nonwovens are made of short fibers, and the setting effect is not as good as that of spunbond nonwovens. Fluff is slightly worse. In recent years, many hot air nonwoven manufacturers have greatly reduced fluff by adding ironing rollers and other processes. Soft, cottony, abrasion-resistant and thin are the development direction of the bottom layer.

3. Waist circumference

Non-woven fabrics(Health Spunbond Nonwoven Material On Sales) used for the waist of zip-up pants need to have the characteristics of good strength, less fluff, and strong fabric feel. Currently, spunbond non-woven fabrics are mainly used. Some companies have tried to use elastic films and hot air nonwovens to make the waist, but the strength of the hot air nonwovens after bonding the seams is weak. In addition, although the hot air nonwovens are relatively fluffy, they are used to make the waists thicker and feel less What's special is that it is not the main material for waist circumference. Soft fluffy, wear-resistant, and good breathability is the development trend of waist circumference.

Hydrophilic Nonwovens Wholesale, Soft Nonwovens Company, Health Spunbond Nonwoven Material On SalesHydrophilic Nonwovens Wholesale, Soft Nonwovens Company, Health Spunbond Nonwoven Material On Sales

4, leak-proof partition

The main function of the leak-proof partition is to prevent urine from leaking from both sides. Therefore, the non-woven fabric for the leak-proof partition needs good water repellency, high strength and softness. Currently, spunmelt nonwovens (SMS) are mainly used. High barrier properties, softness, cotton texture, and thinness are the development trends of leak-proof partitions.

5.Core coating

The main function of the core covering layer is to prevent SAP and fluff pulp from loosening and leaking. It is necessary to choose materials with good coverage, hydrophilicity and softness. The previous material used was toilet paper. However, due to the poor wet strength of toilet paper, it is easy to break after absorbing water. At present, more and more core wrapping layers use spunmelt nonwovens. Good wet strength, softness, hydrophilicity, and low back permeability are the development trends of core coatings.

6.Diversion layer

The diversion layer is located below the surface layer, and its role is to accelerate the penetration and diffusion of liquid and reduce the liquid osmosis. The non-woven fabric for the guide layer needs to have the characteristics of hydrophilicity, fast liquid penetration and good liquid diffusion. In the early days, spunbond nonwovens or perforated films were mainly used as the guide layer, but in recent years, hot air nonwovens or chemically bonded nonwovens were mainly used, and in order to improve the visual effect, nonwovens of different colors were also used as guides. Stratosphere. Increasing the diversion speed, expanding the diversion area, and evenly distributing the liquid are the development trends of the diversion layer.

7, front waist stickers

The front waist patch needs to have the characteristics of high strength, easy sticking, no lint, and strong peeling strength. In the past, many spunlace nonwoven fabrics were laminated with films, or spunbond nonwoven fabrics were laminated with membranes and embossed. High, gradually replaced by spunmelt nonwovens. High strength, comfortable feel and beautiful appearance are the development directions of front waist stickers.

8, left and right stickers (earband)

The left and right stickers need to have the characteristics of high strength, good uniformity, softness and comfort. In the past, spunlace nonwovens were mostly used, but because of the low cost of spunmelt nonwovens, they have become the mainstream of the market.