BG112231A - Absorbing core for baby diaper - Google Patents

Abstract

The absorbent core for baby diaper consists of a mixture of cellulose and a super absorbent wrapped in a nonwoven material, as the top surface of the core is formed with a wavy profile, wherein the arrangement of the "waves" is longitudinally of the core on at least % of its length, as the wave height is the greatest in the central part of the core Zone 2, and at both ends of the core Zone 1 and Zone 2 is the smallest, as in Zone 1 the waves may be missing.

Description

(54) ABSORBING CORE FOR BABY DIAPERS (57) The absorbent core for a baby diaper, consisting of a mixture of cellulose and a super absorbent wrapped in a nonwoven fabric, the upper surface of the core being shaped with a wavy profile, which is longitudinal to the core, on at least% of its length, the wave height being greatest in the central part of the core Zone 2, and at both ends Zone 1 and Zone 2 being the smallest, and in Zone 1 the waves may be absent .

claims, 2 figures

ABSORBING CORE FOR BABY DIAPERS

FIELD OF THE INVENTION

The invention relates to an absorbent core for a baby diaper and finds application as a complementary product from the group of disposable hygiene products intended for babies and young children.

BACKGROUND OF THE INVENTION

The main purpose of disposable baby diapers is to absorb urine while keeping the baby's skin dry. One of the common shortcomings of baby diapers, respectively, and the cause of ζ complaints from consumers is the lateral leakage of diapers.

The main element in the diaper that absorbs urine and keeps the baby's skin dry is its core. An absorbent core for a baby diaper is known, on which the absorbent layer is placed between layers of hydrophilic nonwoven fabric. The central part of the core is stamped wavy along its length, as branched structures are formed by linear prints. / 1 /

Even with this type of diaper, the absorbent capacity as well as the lateral leakage of the diapers remain insufficiently guaranteed.

^W TECHNICAL SUMMARY OF THE INVENTION

It is an object of the present invention to provide an absorbent core for a baby diaper that has increased absorbency and reduced lateral leakage, while ensuring the safety and comfort of the baby.

The problem is solved by the proposed absorbent core for baby diapers, which according to the proposed solution includes a mixture of cellulose and superabsorbent wrapped in a nonwoven fabric, the upper surface of the core is formed with a wavy profile. The position of the "waves" is longitudinal to the core, on at least% of its length, the height of the waves being greatest in the central part of the core Zone 2, and at both ends Zone 1 and Zone 2 being the smallest, as in Zone 1 waves may be missing.

According to a variant of the invention, the waves of the absorbent core for a baby diaper are not less than 4 pieces, with a distance between them A from 8 mm to 17 mm, with a distance between the low and high part B from 4 mm to 9 mm and with a wave height C1 from 2mm to 8mm at the center of the core and from 0mm to 2mm at both ends.

According to another embodiment of the invention, the height of the outer waves VI of the absorbent core for a baby diaper may differ from the height of the inner waves V2 and V3.

EXPLANATION OF THE ATTACHED FIGURES

An exemplary embodiment of the absorbent core for a baby diaper, the subject of the present patent, is shown in the accompanying figures, which only illustrates but does not limit it, where:

Figure 1 shows a general view of the absorbent core for a baby diaper;

Figure 2 is a cross-sectional view of the absorbent core for a baby diaper in the central area.

EXAMPLE IMPLEMENTATION OF THE USEFUL MODEL

According to the attached figure 1, the absorbent core for a baby diaper consists of a mixture of cellulose and a super absorbent wrapped in a nonwoven fabric. We consider the upper surface of the core for baby diapers to be working. The work surface is shaped with a special wavy profile. The location of the "waves" is longitudinal to the core, on at least% of the length. The waves are not less than 4 pieces. The core of the diaper is conditionally divided into 3 zones along the length: Zone 1, Zone 2 and Zone 3.

The wave height is greatest in the central part of the core - Zone 2, and at both ends - Zone 1 and Zone 3 is the smallest, and in Zone 1 the waves may be absent.

The waves in Zone 1 are characterized by the following values: Wave height C1 from 0 to 2 mm, distance between waves A from 8 to 17 mm, distance between low and high part B from 4 to 9 mm.

The waves in Zone 2 are characterized by the following values: Height of the waves C1 from 2 to 8 mm, distance between the waves A from 8 to 17 mm, distance between the low and high part B from 4 to 9 mm.

The waves in Zone 3 are characterized by the following values: Height of waves C1 from 2 to 8 mm, distance between waves A from 8 to 17 mm, distance between low and high part B from 4 to 9 mm.

According to the attached figure 2, where a cross section of the absorbent core for a baby diaper is shown, the height of the external waves VI may differ from the height of the waves V2 and V3 or may be the same.

The thus shaped wavy working surface of the absorbent core for baby diapers provides more than 10% more active area at the same overall dimensions of the core, which improves the time for absorbing the liquid. On the other hand, the longitudinal position of the "waves" is an obstacle for the passage of the liquid in the transverse direction, which prevents the lateral leakage of the diapers.

Claims (3)

1. The absorbent core for a baby diaper, consisting of a mixture of cellulose and a super absorbent wrapped in a nonwoven fabric, characterized in that the upper surface of the core is formed with a wavy profile, the arrangement of the "waves" being longitudinal of the core, on at least% of its length, the wave height being greatest in the central part of the core Zone 2, and at both ends Zone 1 and Zone 2 being the smallest, and in Zone 1 the waves may be absent. The absorbent core for a baby diaper according to claim 1, characterized in that the waves are not less than 4 pieces, with a distance between them A of 8 mm to 17 mm, with a distance between the low and high part B of 4 mm to 9 mm and with a C1 wave height of 2mm to 8mm at the center of the core and from 0mm to 2mm at both ends. The absorbent baby diaper core according to claims 1 and 2, characterized in that the height of the outer waves VI may differ from the height of the inner waves V2 and V3.