Light, thin and breathable paper diaper elastic part and production process

Abstract

The invention discloses a light, thin and breathable paper diaper elastic part. Spandex filaments are arranged between an upper waistline non-woven fabric and a lower waistline non-woven fabric, and upper waistline fixing glue and spandex filament fixing reinforcing glue are arranged on the opposite faces of the upper waistline non-woven fabric and the lower waistline non-woven fabric respectively. The upper waistline non-woven fabric and the lower waistline non-woven fabric are low-weight hollow fiber spun-melt non-woven fabrics, and the two ends of the upper waistline non-woven fabric and the two ends of the lower waistline non-woven fabric are connected through ultrasonic heat sealing. A production process of the light, thin and breathable paper diaper elastic part comprises the steps of S1, unwinding the upper waistline non-woven fabric, and applying the upper waistline fixing glue; S2, performing wrapping folding on the two ends of the upper waistline non-woven fabric; S3, unwinding the spandex filaments, and adjusting the draw ratio of the spandex filaments; S4, unwinding the lower waistline non-woven fabric, and applying the spandex filament fixing reinforcing glue; S5, conveying the upper waistline non-woven fabric, the spandex filaments and the lower waistline non-woven fabric to a compositing guide roller for compositing; and S6, performing heat sealing. The light, thin and breathable paper diaper elastic part has the advantages that glue seepage is not likely to happen, the elasticity is not likely to be attenuated, the creep rate of the spandex filaments is low,and the elastic part is not likely to rebound in the conveying process.

Description

technical field [0001] The invention relates to the technical field of elastic parts, in particular to an elastic part of light and breathable paper diapers and a production process. Background technique [0002] The material consumption of the elastic parts of existing diapers is too high, and the directly related costs are too high. The amount of hot melt adhesive used in the elastic parts of existing diapers is high, and the fiber distribution of the nonwoven fabric is uneven, which leads to glue bleeding during the compounding process on the equipment. If the equipment runs for a long time, it will stick to the nonwovens and form wire drawing. In severe cases, it will cause material breakage and affect production efficiency. [0003] CN201920010738.4 describes an elastic part of diapers, the purpose of which is to improve the air permeability of the elastic part, but there is a shortcoming. In the production process, it needs to use negative pressure adsorption in the t...

AI Technical Summary

Problems solved by technology

[0002] The amount of material used in the elastic parts of existing diapers is too high, and the directly related costs are too high

The amount of hot melt adhesive used in the elastic parts of existing diapers is high, and the fiber distribution of the nonwoven fabric is uneven, which leads to glue bleeding during the compounding process on the equipment. If the equipment runs for a long time, it will stick to the non-woven fabric and form a wire drawing. In severe cases, it will cause material breakage and affect production efficiency.

[0003] CN201920010738.4 describes an elastic part of diapers, the purpose of which is to improve the air permeability of the elastic part, but there is a shortcoming. In the production process, it needs to use negative pressure adsorption in the transfer of materials to improve the air permeability of the material. During the transfer process, due to the reduction of the force of negative pressure adsorption, the elastic part itself is affected by the elastic stress and shrinks back. As a result, when the elastic part is combined with the main body of the diaper, the actual width of the elastic part is smaller than the theoretical width. At the same time, due to the effect of negative pressure adsorption Reduced force, increased suction failure during elastic transfer and thus increased risk of missing elastic

Images