Menstrual pant structure with composite core

Abstract

The period pants structure with composite core body of the present application relates to the technical field of sanitary products, and particularly relates to period pants with a composite core body and a novel connecting structure. The main body of the present application is a pant body made of a composite structure composed of an inner pant layer and an outer pant layer; the front waist and the back waist of the pant body are connected in a flat manner and then connected by a hot melt adhesive and ultrasonic wave composite form to form a product pant shape structure. The technical scheme of the present application solves the problems in the prior art that the existing period pants use a mixed core body of fluff pulp and super absorbent resin, the processing technology is complex, the uniformity is unstable, uneven absorption, reverse seepage and side leakage and other problems occur during use, and the front and back waist are connected by the folding ultrasonic wave composite process, so that the two sides of the product form an ear-shaped structure, and the side ear-shaped protrusions after wearing are not comfortable and not aesthetic.

Description

TECHNICAL FIELD

[0001] The period pants structure with a composite core body relates to the technical field of sanitary products, and particularly to period pants with a composite core body and a novel connection structure. BACKGROUND

[0002] Period pants products are upgraded products of night sanitary napkins, and can be worn for a long time, and are suitable for environments where sanitary napkins cannot be changed conveniently. Long-time wearing is a great test for the absorbent core body. The products on the market mostly use a mixed core body of fluff pulp and super absorbent polymer (SAP), and the processing technology is complex, the uniformity is unstable, and problems such as uneven absorption, agglomeration, backflow, and side leakage occur in use. Meanwhile, the existing conventional period pants products use a folding and ultrasonic compounding process for side edge compounding, and form an ear-shaped structure on the side. The material clumps after ultrasonic melting and compounding in the side compounding area, and is hard, which is uncomfortable to wear and has a clear protrusion on the side after wearing, which is very unattractive. In view of the problems existing in the prior art, it is necessary to research and design a novel period pants structure with a composite core body to overcome the problems existing in the prior art. SUMMARY

[0003] The existing period pants proposed according to the prior art use a mixed core body of fluff pulp and super absorbent polymer, and the processing technology is complex, the uniformity is unstable, and problems such as uneven absorption, backflow, and side leakage occur in use. Meanwhile, the front and rear waist perimeters use a folding and ultrasonic compounding process, and the two sides of the product form an ear-shaped structure, which is not only uncomfortable to wear but also unattractive, and the technical problem is solved by providing a period pants structure with a composite core body. The present application mainly uses a composite core body structure to form a plurality of layers of inner and outer pant layers, and combines a flat ultrasonic compounding connection structure of the front and rear waist perimeters, so as to achieve the effects of rapid absorption, no backflow, no side leakage, increased use time, and comfortable and attractive wearing.

[0004] The technical means adopted by the present application are as follows:

[0005] The main body of the period pants structure with a composite core body is a pant body made of a composite structure composed of an inner pant layer and an outer pant layer.

[0006] Further, the front and rear waist perimeters of the pant body are connected in a flat manner after being folded, and are connected in a hot melt adhesive and ultrasonic compounding form, to form a pant-shaped structure of the product.

[0007] Further, the inner pant layer comprises an inner lining surface layer and an inner lining layer.

[0008] Further, the inner lining surface layer and the inner lining layer are combined into the inner pant layer in a hot melt adhesive compounding process.

[0009] Further, the inner lining surface layer comprises, from inside to outside, a containment non-woven fabric, a containment rubber band, and a surface non-woven fabric.

[0010] Further, the cover nonwoven fabric is one of SMS, SMMS, SSMS, and SSMMS composite nonwoven fabrics, and the gram weight is 8-15 gsm;

[0011] Further, the cover rubber cord has a gram weight of 600-800D;

[0012] Further, the surface layer nonwoven fabric is one of air-through nonwoven fabric and spunlace nonwoven fabric, and the gram weight is 20-40 gsm;

[0013] Further, the cover nonwoven fabric, the cover rubber cord, and the surface layer nonwoven fabric are combined into the inner surface layer by using a hot melt adhesive composite process.

[0014] Further, the inner layer is sequentially composed of a flow guide layer nonwoven fabric, dust-free paper, a composite core, a core rubber cord, and a breathable bottom film from inside to outside;

[0015] Further, the flow guide layer nonwoven fabric is one of air-through nonwoven fabric and spunlace nonwoven fabric, and the gram weight is 20-70 gsm;

[0016] Further, the dust-free paper has a gram weight of 50-70 gsm;

[0017] Further, the composite core has a gram weight of 200-300 gsm;

[0018] Further, the core rubber cord has a gram weight of 600-800D;

[0019] Further, the breathable bottom film has a gram weight of 10-20 gsm;

[0020] Further, the flow guide layer nonwoven fabric, the dust-free paper, the composite core, the core rubber cord, and the breathable bottom film are combined into the inner layer by using a hot melt adhesive composite process.

[0021] Further, the outer pant layer is sequentially composed of an inner waistband nonwoven fabric, a waistband rubber cord, and an outer waistband nonwoven fabric from inside to outside;

[0022] Further, the inner waistband nonwoven fabric and the outer waistband nonwoven fabric are one of spunbond nonwoven fabric, bicomponent spunbond nonwoven fabric, and elastic nonwoven fabric;

[0023] Further, the inner waistband nonwoven fabric has a gram weight of 10-20 gsm;

[0024] Further, the waistband rubber cord has a gram weight of 600-1000D;

[0025] Further, the outer waistband nonwoven fabric has a gram weight of 10-20 gsm;

[0026] Further, the inner waistband nonwoven fabric, the waistband rubber cord, and the outer waistband nonwoven fabric are combined into the outer pant layer by using a hot melt adhesive composite process.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] 1. The menstrual pants structure with a composite core provided by the present invention can ensure rapid absorption, no backflow, and no side leakage by adopting a composite core structure;

[0029] 2. The menstrual pants structure with a composite core provided by the present invention adopts a composite core structure, which provides air circulation space, reduces stuffiness, and makes it more comfortable to wear for a long time;

[0030] 3. The menstrual pants structure with a composite core provided by the present invention changes the side composite position from vertical composite to flat composite, making the product fit the body better and more comfortable to wear.

[0031] 4. The menstrual pants structure with a composite core provided by the present invention has eliminated the ear-shaped structure on the product by using a flat-lay composite design, and there are no protrusions on the sides when wearing it, making it more aesthetically pleasing.

[0032] In summary, the technical solution of this invention solves the problems of existing menstrual pants, which use a mixed core of fluff pulp and superabsorbent resin, have a complex processing technology, unstable uniformity, and uneven absorption, backflow, and side leakage during use. At the same time, the front and back waistbands are made by folding and then using an ultrasonic composite process, which makes the product have an ear-shaped structure on both sides. The ear-shaped protrusions on the sides are uncomfortable and unsightly when worn. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of the present invention;

[0035] Figure 2 This is a diagram showing the unfolded shape of the trousers of the present invention;

[0036] Figure 3 This is a schematic diagram of the unfolded outer trouser layer of the present invention;

[0037] Figure 4 This is a schematic diagram of the underwear layer structure of the present invention;

[0038] Figure 5 This is a schematic diagram of the cross-sectional structure of the underwear layer of the present invention;

[0039] Figure 6 This is a schematic diagram of the flat-overlap structure of the front and back waistbands of the present invention;

[0040] Figure 7 This is a top view of the front and back waistband flat-overlay structure of the present invention;

[0041] Figure 8 This is a perspective view of the flat-overlay structure of the front and back waistbands of the present invention.

[0042] In the diagram: 1. Non-woven fabric for the guardrail 2. Elastic band for the guardrail 3. Non-woven fabric for the surface layer 4. Non-woven fabric for the flow guiding layer 5. Dust-free paper 6. Composite core 7. Elastic band for the core 8. Non-woven fabric for the outer waistband 9. Non-woven fabric for the inner waistband 10. Elastic band for the waistband 11. Non-woven fabric for the outer waistband 12. Front waistband 13. Back waistband. Detailed Implementation

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0046] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0047] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0048] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0049] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0050] As shown in the figure, this invention provides a menstrual pant structure with a composite core. The inner outer layer is formed by laminating a 13gsm nonwoven fabric for the cuffs, a 620D elastic band for the cuffs, and a 25gsm surface nonwoven fabric for the outer layer using a hot melt adhesive bonding process. The lower surface of the inner outer layer is also laminated using a hot melt adhesive bonding process to form an inner layer consisting of a 40gsm flow-guiding layer nonwoven fabric 4, a 35gsm dust-free paper 5, a 280gsm composite core 6, a 620D core elastic band 7, and a 17gsm outer waistband nonwoven fabric 8. The inner outer layer and the inner inner layer are laminated using a hot melt adhesive bonding process to form the pant layer. Finally, an outer pant layer is formed by laminating a 15gsm inner waistband nonwoven fabric 9, a 940D waistband elastic band 10, and a 17gsm outer waistband nonwoven fabric 11 using a hot melt adhesive bonding process.

[0051] The inner and outer layers are bonded together using a hot melt adhesive bonding process to form the pant body. The front waistband 12 and back waistband 13 of the pant body are folded together to form a flat structure. The flat structure is bonded together by an ultrasonic bonding device to form a pant-shaped product. After being folded by a folding device, it is wrapped to form the final unit for sale.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A menstrual pant structure with a composite core, characterized in that: The main body of the menstrual pants structure with a composite core is a pant body made of a composite structure consisting of an inner pant layer and an outer pant layer; The sides of the front waistband (12) and back waistband (13) of the pants are overlapped in a flat manner, and the overlapping area is connected by hot melt adhesive and ultrasonic composite to form a pants-shaped structure. The underwear layer comprises: an inner outer layer and an inner layer; the inner outer layer and the inner layer are bonded together using a hot melt adhesive bonding process to form the underwear layer; The inner lining consists of, from the inside out, a protective non-woven fabric (1), a protective elastic band (2), and a surface non-woven fabric (3). The inner layer consists of, from the inside out, a non-woven flow guide layer (4), a dust-free paper (5), a composite core (6), a core elastic band (7), and a breathable bottom membrane (8). The outer trouser layer consists of, from the inside out, an inner waistband nonwoven fabric (9), a waistband elastic band (10), and an outer waistband nonwoven fabric (11).

2. The menstrual pant structure with a composite core according to claim 1, characterized in that: The protective nonwoven fabric (1) is one of SMS, SMMS, SSMS, and SSMMS composite nonwoven fabrics, with a basis weight of 8-15 gsm; The specifications of the protective rubber band (2) are 600-800D; The surface nonwoven fabric (3) is one of hot air nonwoven fabric and spunlace nonwoven fabric, with a basis weight of 20-40 gsm; The nonwoven fabric (1), elastic band (2), and surface nonwoven fabric (3) are combined into an inner surface layer using a hot melt adhesive composite process.

3. The menstrual pant structure with a composite core according to claim 1, characterized in that: The nonwoven fabric (4) of the flow guiding layer is one of hot air nonwoven fabric and spunlace nonwoven fabric, with a basis weight of 20-70 gsm; The basis weight of the dust-free paper (5) is 50-70 gsm; The composite core (6) has a basis weight of 200-300 gsm; The core rubber band (7) has a specification of 600-800D; The weight of the breathable bottom membrane (8) is 10-20 gsm; The aforementioned nonwoven fabric (4), dust-free paper (5), composite core (6), core elastic (7), and breathable bottom membrane (8) are combined into an inner layer using a hot melt adhesive composite process.

4. The menstrual pant structure with a composite core according to claim 1, characterized in that: The inner waist nonwoven fabric (9) and the outer waist nonwoven fabric (11) are one of spunbond nonwoven fabric and elastic nonwoven fabric; The weight of the inner waistband nonwoven fabric (9) is 10-20 gsm; The waist elastic band (10) has a specification of 600-1000D; The weight of the outer waistband nonwoven fabric (11) is 10-20 gsm; The inner waist nonwoven fabric (9), waist elastic (10) and outer waist nonwoven fabric (11) are combined into the outer trouser layer using a hot melt adhesive composite process.

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