WO2012171264A1 - Diaper pad having new type of absorption layer and processing method therefor - Google Patents

Abstract

A diaper pad having a new type of absorption layer and processing method therefor. The diaper pad comprises a surface layer (1), an absorption layer, and a bottom layer (5). The absorption layer is between the surface layer (1) and the bottom layer (5). The absorption layer has multiple sewing threads (7) interpenetrating therein for dividing the absorption layer into and fastening multiple web structures. The sewing threads can penetrate the surface layer (1), and separately connect the surface layer (1) and the bottom layer (5), thereby forming an integral body. The absorption layer can comprise a fluff pulp layer (3), a dispersion layer (2) thereabove, and an absorbent paper layer (4) therebelow. The sewing threads (7) can penetrate the fluff pulp layer (3), and separately connect the dispersion layer (2), and the absorbent paper layer (4). The fluff pulp layer (3) can be provided with multiple fiber coagulation points. The diaper pad is simple in structure, economic, practical, safe, sanitary, and comfortable. The absorption layer is not easy to deform and fracture. The processing method has a simple production process and high production efficiency.

Description

 Description

 Diaper sheet with novel absorbent layer and processing method thereof

 The present invention relates to a diaper, and in particular to a diaper having a novel absorbent layer and a method of processing the same. Background technique

 At present, commercially available diapers are usually made up of a mixture of fluff pulp and a polymeric water absorbing layer to form an absorbent layer, which is then laminated by a top layer and a bottom layer. After the user uses the diaper, the water absorbing layer swells due to a large amount of water absorption of the polymer absorbing layer, forming a water absorbing mass, and the water absorbing mass is pulled by the water absorbing mass, and the user twists during the movement to make the water absorbing group Due to the uneven force of the hook and the different pressing and pulling forces, the diaper absorption layer is wound, agglomerated, broken, delaminated, broken or the liquid is not uniformly transported. In the absence of the first time replacement, various discomforts may occur, and even the phenomenon that the polymer water absorbing layer expands and is squeezed and overflows, which seriously affects the user's health. Summary of the invention

 In order to overcome the above drawbacks of the prior art, embodiments of the present invention provide a diaper having a novel absorbent layer and a processing method thereof, which separate the absorbent layer into a plurality of mesh structures and are fixed so that the fluff in the absorbent layer The slurry and polymer water absorbing layer are not easily deformed and broken. The technical solution is as follows:

 A diaper having a novel absorbent layer, comprising a top layer, an absorbing layer and a bottom layer, the absorbing layer being disposed between the top layer and the bottom layer, wherein the absorbing layer is interspersed with a plurality of sewing threads, the sewing thread It is used to divide the absorbing layer into a plurality of reticular structures and fix them.

 Specifically, the sewing thread passes through the face layer, the absorbent layer, the bottom layer, and connects the face layer and the bottom layer, respectively, to form an integral body.

 Specifically, the absorbing layer is composed of a fluff pulp layer and a dredging layer thereabove and a lower absorbent paper layer, and the sewing thread passes through the fluff pulp layer and connects the upper dredging layer and the lower absorbent paper layer, respectively.

 Specifically, the absorbing layer is composed of a fluff pulp layer and a dredging layer thereabove and a lower absorbent paper layer, and the sewing thread passes only through the fluff pulp layer, and the fluff pulp layer is divided into a plurality of mesh structures and fixed.

 Specifically, a single segment of the sewing thread exists.

 Specifically, the sewing threads are connected to each other.

The embodiment of the invention further provides a diaper having a novel absorbing layer, which is composed of a surface layer, an absorbing layer and a bottom layer. The absorbing layer is disposed between the top layer and the bottom layer, and the absorbing layer is composed of a fluff pulp layer and a dredging layer thereon and a lower absorbent paper layer, wherein the fluff pulp layer is provided with a plurality of fiber freezing points, the fiber The freezing point is used to separate the fluff pulp layer of the absorbent layer into a plurality of mesh structures and to fix them.

 The embodiment of the invention provides a processing technology for a diaper having a novel absorbing layer, which is formed by dividing the absorbing layer into a plurality of reticular structures and fixing during the processing of the absorbing layer in the processing process of the existing diaper. Steps, the steps specifically include:

 Step 1. The velvet sewing process is used to add the fluff pulp layer of the absorbing layer to the sewing thread, wherein the sewing thread only penetrates the fluff pulp layer and is equidistantly arranged;

 Step 2. A dredging layer is arranged on the upper part of the fluff pulp layer, and an absorbent paper layer is arranged on the lower part of the fluff pulp layer to form a complete absorbent layer.

 The embodiment of the invention also provides a processing technology for a diaper having a novel absorbing layer, which is formed by dividing the absorbing layer into a plurality of reticular structures and fixing during the processing of the absorbing layer in the processing process of the existing diaper. The steps of the steps include:

 Step 1. A dredging layer is arranged on the upper part of the fluff pulp layer, and a water absorbent paper layer is arranged on the lower part of the fluff pulp layer to form a complete absorption layer;

 Step 2: Using a quilting sewing process, the fluff pulp layer of the absorbing layer is added into the sewing thread, wherein the sewing thread penetrates the fluff pulp layer and extends in the upward and downward directions, respectively, upwardly passing through the dredging layer disposed above the fluff pulp layer. And the top layer, down through the absorbent paper layer and the bottom layer below the fluff pulp layer, and the sewing threads are equidistantly arranged.

 The step may further be: using ultrasonic waves to melt the fibers in the fluff pulp layer of the absorbing layer and then solidifying, thereby forming a plurality of fiber freezing points, thereby separating the fluff pulp layer of the absorbing layer into a plurality of reticular structures and fixing.

 The beneficial effects of the embodiments of the present invention are:

 The diaper having the novel absorbent layer according to the embodiment of the present invention fixes the absorbing layer of the diaper by using a sewing thread or an ultrasonic process, and at the same time makes the liquid conduction more uniform, which advantageously accelerates the distribution of the liquid and effectively avoids Due to the expansion of water absorption, the fluff pulp is pulled, and the user is distorted during the movement, so that the water absorbing group and other parts are caused by the uneven force and the difference in the squeezing and pulling force, which is caused by the winding, agglomeration, breakage, Defects such as delamination, breakage, or uneven liquid transport, relieve the user of the troubles caused by such problems.

 The processing method of the diaper having the novel absorbing layer according to the embodiment of the present invention is to complete the uni film production on the production line according to the method of the ordinary diaper, and to make the diaper through the quilting and other sewing processes on the diaper production line. The absorbing layer is integrally formed into a mesh structure from the top layer to the bottom layer to form a diaper of the integral absorbing layer;

It is also possible to separately prepare the fluff pulp layer of the absorbing layer, and through the sewing process such as quilting, the fluff pulp layer of the absorbing layer is sewed into a mesh structure, and then the transport layer and the absorbent paper layer are adhered to match the surface layer and the bottom layer. Processing to form a whole a diaper of the absorbent layer;

 It is also possible to form a plurality of fiber freezing points in the absorption layer by ultrasonic waves for the fibers in the absorption layer, and to separate the absorption layer into a plurality of network structures and fix them by means of the fiber freezing point.

 In summary, compared with the prior art, the diaper having the novel absorbent layer according to the embodiment of the present invention has the advantages of simple structure, economical and practical, safety, sanitation, and comfortable use, and the processing method according to the embodiment of the present invention It has the characteristics of simple production process and high production efficiency. DRAWINGS

 1 is a schematic cross-sectional structural view of a diaper having a novel absorbent layer according to Embodiment 1 of the present invention;

 2 is a schematic cross-sectional structural view of a diaper having a novel absorbent layer according to Embodiment 2 of the present invention;

 Figure 3 is a schematic view showing the structure of the surface of the absorbent layer of the diaper having the novel absorbent layer according to Embodiment 1 of the present invention; Figure 4 is a surface of the absorbent layer of the diaper having a novel absorbent layer according to Embodiment 3 of the present invention. Schematic diagram of the line structure;

 Fig. 5 is a view showing the structure of the sewing thread surface of the absorbing sheet of the diaper having the novel absorbent layer according to the fourth embodiment of the present invention. In the picture:

 1-surface layer;

 2-transmission layer;

 3-fluff pulp layer;

 4-absorbent paper layer;

 5-bottom;

 6-polymer absorbent resin;

 7-Sewing thread. detailed description

 A diaper having a novel absorbent layer of the present invention will now be further described with reference to the accompanying drawings and specific embodiments. Example 1

Referring to Fig. 1, a diaper having a novel absorbent layer is composed of a top layer 1, an absorbing layer and a bottom layer 5, and the absorbing layer is disposed between the top layer 1 and the bottom layer 5, and the absorbing layer is interspersed with a plurality of Sewing threads for separating the absorbing layer into a plurality of mesh structures and fixing them. Example 2:

 Referring to Fig. 2, a diaper having a novel absorbent layer is composed of a top layer 1, an absorbing layer and a bottom layer 5, and the absorbing layer is disposed between the top layer 1 and the bottom layer 5, and the absorbing layer is interspersed with a plurality of Sewing threads are respectively connected to the upper layer of the upper layer of the absorption layer and the bottom layer of the bottom portion for separating the absorption layer into a plurality of network structures and fixing the absorption layer to the surface layer 1 and the bottom layer 5. Example 3:

 As shown in Fig. 1 and Fig. 3, a diaper having a novel absorbent layer is composed of a topsheet 1, an absorbent layer and a bottom layer 5, the absorbent layer being composed of a fluff pulp layer 3, a transport layer 2 and an absorbent paper. The layer 4 is configured, the polymer absorbent resin 6 is disposed in the fluff pulp layer 3, and the transport layer 2 and the absorbent paper layer 4 are respectively disposed on both sides of the fluff pulp layer 3, and the absorption layer is disposed between the top layer 1 and the bottom layer 5, in the absorption layer A plurality of sewing threads 7 are interspersed for separating the absorbing layer into a plurality of mesh structures and fixing them.

 In this embodiment, as shown in Fig. 1, the sewing thread 7 can penetrate only the pile layer 3 of the absorbent layer.

 In the present embodiment, the sewing thread 7 can fix the pile layer 3 of the absorbent layer through the sewing thread 7 so as not to be deformed when pressed by an external force. Example 4:

 As shown in Fig. 2, a diaper having a novel absorbent layer is composed of a topsheet 1, an absorbent layer and a bottom layer 5, the absorbent layer being composed of a fluff pulp layer 3, a transport layer 2 and an absorbent paper layer 4. A polymer absorbent resin 6 is disposed in the fluff pulp layer 3, and a transport layer 2 and a water absorbent paper layer 4 are disposed on both sides of the fluff pulp layer 3, and the absorption layer is disposed between the top layer 1 and the bottom layer 5, and the absorption layer is interspersed with a plurality of The sewing thread 7 is used to divide the absorbing layer into a plurality of mesh structures and fix them.

 The sewing thread 7 sequentially penetrates the top layer 1, the transport layer 2 at the upper portion of the absorbing layer, the fluff pulp layer 3 of the absorbing layer, the absorbent paper layer 4 and the bottom layer 5 at the lower portion of the absorbing layer, thereby bringing the top layer 1, the absorbing layer and the bottom layer 5 Fixed together.

 In the present embodiment, the sewing thread 7 can fix the top layer 1, the absorbent layer and the bottom layer 5 as a whole by the sewing thread 7, so that it does not deform when pressed by an external force. Example 5

 A diaper having a novel absorbent layer, comprising a topsheet 1, an absorbent layer and a bottom layer 5, the absorbent layer being composed of a fluff pulp layer 3, a transport layer 2 and an absorbent paper layer 4, and a high setting in the fluff pulp layer 3 a molecular absorbing resin 6, a transport layer 2 and a water absorbing paper layer 4 are disposed on both sides of the fluff pulp layer 3, and an absorbing layer is disposed between the top layer 1 and the bottom layer 5, and a plurality of sewing threads 7 are interposed in the absorbing layer, The sewing thread 7 is used to divide the absorbing layer into a plurality of mesh structures and fix them.

In this embodiment, as shown in Fig. 1, the sewing thread 7 can penetrate only the pile layer 3 of the absorbent layer. In the present embodiment, the sewing thread 7 can fix the pile layer 3 of the absorbent layer through the sewing thread 7 so as not to be deformed when pressed by an external force.

 The present embodiment is different from the embodiment 1 in that, as shown in Fig. 4, after the sewing thread 7 penetrates the pile layer 3, the sewing threads 7 of the same row are connected to each other.

 In the present embodiment, the sewing threads 7 of the same row are connected to each other, and the fixing effect of the sewing thread 7 can be enhanced. Example 6:

 A diaper having a novel absorbent layer, comprising a topsheet 1, an absorbent layer and a bottom layer 5, the absorbent layer being composed of a fluff pulp layer 3, a transport layer 2 and an absorbent paper layer 4, and a high setting in the fluff pulp layer 3 a molecular absorbing resin 6, a transport layer 2 and a water absorbing paper layer 4 are disposed on both sides of the fluff pulp layer 3, and an absorbing layer is disposed between the top layer 1 and the bottom layer 5, and a plurality of sewing threads 7 are interposed in the absorbing layer, The sewing thread 7 is used to divide the absorbing layer into a plurality of mesh structures and fix them.

 In this embodiment, as shown in Fig. 1, the sewing thread 7 can penetrate only the pile layer 3 of the absorbent layer.

 In the present embodiment, the sewing thread 7 can fix the pile layer 3 of the absorbent layer through the sewing thread 7 so as not to be deformed when pressed by an external force.

 This embodiment differs from the first embodiment in that, as shown in Fig. 5, after the sewing thread 7 penetrates the fluff pulp layer 3, the adjacent two sewing threads 7 are connected to each other, so that the sewing thread 7 is netted. The lattice shape enhances the fixing effect of the sewing thread 7. Example 7

 The processing method of a diaper having a novel absorbing layer is a step of dividing the velvet layer 3 of the absorbing layer into a plurality of reticular structures and fixing them during the processing of the absorbing layer in the processing process of the existing diaper. .

 The specific steps include: See Figure 1.

 Step 1. Using the quilting sewing process, the fluff pulp layer 3 of the absorbing layer is added to the sewing thread 7, wherein the sewing thread 7 can penetrate only the fluff pulp layer 3 and are equidistantly arranged;

 Step 2. A dredging layer 2 is disposed on the upper portion of the fluff pulp layer 3, and an absorbent paper layer is disposed on the lower portion of the fluff pulp layer 3 to constitute a complete absorbent layer.

 In the present embodiment, the sewing thread 7 is a plurality of single wires passing through the pile layer 3, respectively, thereby separating the pile layer of the absorbent layer into a plurality of mesh structures and fixing them. Example 8

A processing method for a diaper having a novel absorbing layer is a step of dividing the absorbing layer into a plurality of reticular structures and fixing them during the processing of the absorbing layer in the processing of the existing diaper. The specific steps include: See Figure 2,

 Step 1. The dredging layer 2 is disposed on the upper portion of the fluff pulp layer 3, and the absorbent paper layer is disposed on the lower portion of the fluff pulp layer 3 to constitute a complete absorbent layer;

 Step 2: The velvet sewing process is used to add the fluff pulp layer 3 of the absorbing layer to the sewing thread 7, wherein the sewing thread 7 penetrates the fluff pulp layer 3 and extends in the upward and downward directions, respectively, upwardly through the fluff pulp layer 3 The dredging layer 2 and the top layer 1 disposed above pass down through the absorbent paper layer 4 and the bottom layer 5 below the pile layer 3, and the sewing threads 7 are equidistantly arranged.

 In this embodiment, the sewing thread 7 is a single single-line loop through the top layer 1, the dredging layer 2, the fluff pulp layer 3, the absorbent paper layer 4 and the bottom layer 5, thereby separating the fluff pulp layer of the absorbent layer into a plurality of nets. Structure and fixed. Example 9

 A processing method for a diaper having a novel absorbent layer is a step of dividing the absorbent layer into a plurality of network structures and fixing them during the processing of the absorbent layer in the processing of the existing diaper.

 In this embodiment, the step of dividing the absorption layer into a plurality of network structures and fixing is specifically: ultrasonically melting the fibers of the pile layer 3 in the absorption layer and solidifying, thereby forming a plurality of fiber freezing points, thereby absorbing the absorption layer. The fluff pulp layer 3 is divided into a plurality of mesh structures and fixed. The above-mentioned embodiments are only one of the more preferred embodiments of the present invention, and the usual variations and alternatives made by those skilled in the art within the scope of the present invention are included in the scope of the present invention.

Claims

Claim  A diaper having a novel absorbent layer, comprising a top layer, an absorbing layer and a bottom layer, the absorbing layer being disposed between the top layer and the bottom layer, wherein the absorbing layer is interspersed with a plurality of sewing threads The sewing thread is used to divide the absorbing layer into a plurality of mesh structures and fix them. 2. A diaper having a novel absorbent layer according to claim 1, wherein the sewing thread passes through the face layer, the absorbent layer, the bottom layer, and the face layer and the bottom layer are respectively joined to form a unitary body. 3. A diaper having a novel absorbent layer according to claim 1, wherein the absorbing layer is composed of a fluff pulp layer and a dredging layer thereon and a lower absorbent paper layer, and the sewing thread passes through the fluff. The slurry layer is connected to the upper drainage layer and the lower absorbent paper layer, respectively. 4. A diaper having a novel absorbent layer according to claim 1, wherein the absorbing layer is composed of a fluff pulp layer and a dredging layer thereon and a lower absorbent paper layer, and the sewing thread only passes through The fluff pulp layer separates the fluff pulp layer into a plurality of mesh structures and is fixed. A diaper having a novel absorbent layer according to any one of claims 1 to 4, wherein said sewing thread is present in a single section. A diaper having a novel absorbent layer according to any one of claims 1 to 4, wherein the sewing threads are connected to each other. 7. A diaper having a novel absorbent layer, comprising a top layer, an absorbent layer and a bottom layer, the absorbent layer being disposed between the top layer and the bottom layer, wherein the absorbent layer is formed by a layer of fluff pulp and above The dredging layer and the lower absorbent paper layer are disposed, wherein a plurality of fiber freezing points are disposed in the fluff pulp layer, and the fiber freezing point is used for dividing the fluff pulp layer of the absorbing layer into a plurality of mesh structures and fixing. 8. A processing method for a diaper having a novel absorbent layer, characterized in that in the processing of the absorbing layer in the processing of the existing diaper, the step of dividing the absorbing layer into a plurality of reticular structures and fixing them is added. , the steps specifically include: Step 1. Using a quilting sewing process, the fluff pulp layer of the absorbing layer is added to the sewing thread, wherein the sewing thread only penetrates the fluff pulp layer and is equidistantly arranged;  Step 2. A dredging layer is arranged on the upper part of the fluff pulp layer, and an absorbent paper layer is arranged on the lower part of the fluff pulp layer to form a complete absorbent layer. 9. A processing technique for a diaper having a novel absorbent layer, characterized in that in the processing of the absorbing layer in the processing of the existing diaper, the step of dividing the absorbing layer into a plurality of reticular structures and fixing them is added. The step specifically includes: Step 1. providing a dredging layer on the upper portion of the fluff pulp layer, and providing a water absorbing paper layer on the lower portion of the fluff pulp layer to form a complete absorbing layer;  Step 2: Using a quilting sewing process, the fluff pulp layer of the absorbing layer is added into the sewing thread, wherein the sewing thread penetrates the fluff pulp layer and extends in the upward and downward directions, respectively, and passes upward through the dredging layer disposed above the fluff pulp layer. And the top layer, down through the absorbent paper layer and the bottom layer below the fluff pulp layer, and the sewing threads are equidistantly arranged. 10. A process for processing a diaper having a novel absorbent layer according to claim 8 or 9, wherein said sewing thread is present in a single section. A process for processing a diaper having a novel absorbent layer according to claim 8 or 9, wherein said sewing threads are connected to each other. 12. The processing method of a diaper having a novel absorbent layer according to claim 8, wherein the step is specifically:: ultrasonically melting the fibers in the pile layer of the absorbent layer and then solidifying, Thereby, a plurality of fiber freezing points are formed, thereby separating the fluff pulp layer of the absorbing layer into a plurality of network structures and fixing.