All-cotton disposable underpants

Abstract

The utility model relates to the technical field of absorptive articles, in particular to all-cotton disposable underpants. The utility model discloses all-cotton disposable underpants which comprise an outer layer, and the outer layer comprises a first front waist part, a first front crotch part, a first rear crotch part and a first rear waist part which are formed through cutting; the inner layer comprises a second front waist part, a second front crotch part, a second rear crotch part and a second rear waist part which are formed by cutting; the outer layer and the inner layer are compounded through a melt adhesive layer; the second front waist part and the second rear waist part at the waistline are fixed through a cementing layer to form a closed annular waistline structure. According to the disposable all-cotton underpants, the outer layer and the inner layer of the underpants are compounded through the trace hot melt adhesive, and the uniformity of the overall thickness of the underpants body is ensured; a proper number of rubber bands are arranged on the waistline and the crotch at intervals, the adaptability of different code segments is achieved by controlling the stretching multiplying power of the rubber bands, and meanwhile the wearing comfort and supporting performance are improved.

Description

Technical Field

[0001] The present application relates to the technical field of absorbent articles, and in particular to disposable all-cotton underwear. Background Art

[0002] Disposable underwear is a convenient and fast sanitary product, and its market demand shows a steady growth trend. However, the traditional production method of disposable underwear is still mainly manual, which not only leads to low production efficiency, but also makes it difficult to ensure the stability and consistency of product quality. In addition, there may be hygiene problems in the manual production process, such as bacterial contamination, which poses a potential threat to consumers' health. Therefore, it is very necessary to design a disposable underwear that can be easily automated.

[0003] Therefore, it is necessary to provide all-cotton disposable underwear. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the present application provides a pair of all-cotton disposable underwear. By using a small amount of hot-melt adhesive to compound between the outer layer and the inner layer of the underwear, the uniformity of the overall thickness of the underwear body is ensured while maintaining good breathability; an appropriate number and spacing of elastic bands are arranged at the waist and crotch, and the stretching ratio of the elastic bands is controlled to achieve adaptability to different code segments, while improving the wearing comfort and support.

[0005] The technical solution adopted by this application to solve its technical problem is:

[0006] The all-cotton disposable underwear comprises: an outer layer, wherein the outer layer comprises a first front waist portion, a first front crotch portion, a first back crotch portion and a first back waist portion formed by cutting;

[0007] An inner layer, the inner layer comprising a second front waist portion, a second front crotch portion, a second back crotch portion and a second back waist portion formed by cutting;

[0008] The outer layer and the inner layer are compounded by a melt adhesive layer;

[0009] The second front waist portion and the second back waist portion at the waistline are fixed by an adhesive layer to form a closed ring waistline structure.

[0010] Furthermore, 3 to 8 elastic bands are arranged between the outer layer and the inner layer corresponding to the front waist portion, and between the outer layer and the inner layer corresponding to the back waist portion.

[0011] Furthermore, the spacing between the elastic bands is 2 mm, and the stretching ratio is 2-4 times.

[0012] Furthermore, S-elastic bands are symmetrically distributed between the outer layer and the inner layer corresponding to the front crotch portion and between the outer layer and the inner layer corresponding to the back crotch portion.

[0013] Furthermore, the S-elastic bands are distributed at the lower edge of the waist and abdomen and the lower edge of the buttocks, and the spacing between the S-elastic bands is 10-14 cm.

[0014] Furthermore, an absorbent crotch sheet is provided on the second front crotch portion and the second rear crotch portion.

[0015] Furthermore, the absorbent crotch piece is a detachable absorbent crotch piece; the detachable absorbent crotch piece includes a permeable film with a material layer attached, a non-woven fabric composited on one side of the breathable film, and a Velcro arranged at the bottom of the PE film; the Velcro is arranged on the second front crotch portion and the second rear crotch portion.

[0016] Furthermore, two elastic bands are respectively arranged on both sides of the absorbent crotch piece.

[0017] Furthermore, the upper side and the lower side of the absorbent crotch piece are extended to the waist and abdomen.

[0018] Furthermore, the outer layer and the inner layer are all made of cotton spunlace non-woven fabrics.

[0019] The beneficial effects of this application are:

[0020] 1. The all-cotton disposable underwear described in this application uses 100% cotton spunlace non-woven fabric as the outer and inner layer materials of the underwear, which not only improves the wearing comfort, but also enhances the environmental protection attributes of the product, which is conducive to sustainable development; at the same time, the design of the closed ring waist structure formed by the adhesive layer enhances the fit and support of the underwear, and improves the wearing experience.

[0021] 2. The all-cotton disposable underwear described in the present application uses a small amount of hot-melt adhesive to laminate between the outer layer and the inner layer of the underwear, thereby ensuring the uniformity of the overall thickness of the underwear body while maintaining good air permeability; an appropriate number and spacing of elastic bands are arranged at the waist and crotch, and the adaptability of different code segments is achieved by controlling the stretching ratio of the elastic bands, while improving the wearing comfort and support; a detachable absorbent crotch piece is arranged in the crotch, which is convenient for users to replace and clean, while improving the practicality and hygiene of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the structure of the all-cotton disposable underwear in the present application in an opened state;

[0024] Figure 2 It is a schematic diagram of the structure of the outer layer and the inner layer of the all-cotton disposable underwear described in the present application being connected;

[0025] Figure 3It is a schematic structural diagram of the closed ring waist structure of the all-cotton disposable underwear described in the present application;

[0026] Figure 4 It is a schematic diagram of the structure of the front waist and waist and abdomen of the all-cotton disposable underwear described in the present application;

[0027] Figure 5 This is a schematic diagram of the structure of the all-cotton disposable underwear described in the present application with an absorbent crotch piece;

[0028] Figure 6 It is a schematic diagram of the structure of the absorbent crotch sheet described in the present application;

[0029] Figure 7 This is a schematic diagram of the structure of the all-cotton disposable underwear with S-elastic bands distributed in a dotted pattern as described in the present application in an opened state;

[0030] Figure 8 It is a schematic diagram of the closed ring structure of the all-cotton disposable underwear with S-elastic bands distributed in a dot-break pattern as described in the present application;

[0031] Among them: 1. Outer layer; 11. First front waist; 12. First front crotch; 13. First back crotch; 14. First back waist; 2. Inner layer; 21. Second front waist; 22. Second front crotch; 23. Second back crotch; 24. Second back waist; 3. Melt glue layer; 4. Glue layer; 5. Elastic band; 6. Absorbent crotch piece; 61. Material layer; 62. Permeable film; 63. Non-woven fabric; 64. Velcro. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the concept, specific structure and technical effects of the present application in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments of the present application, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present application. In addition, all the connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features created in this application can be combined interactively without conflicting with each other.

[0033] like Figure 1-3 As shown, the all-cotton disposable underwear comprises: an outer layer 1, wherein the outer layer 1 comprises a first front waist portion 11, a first front crotch portion 12, a first rear crotch portion 13 and a first rear waist portion 14 formed by cutting;

[0034] The inner layer 2 includes a second front waist portion 21, a second front crotch portion 22, a second rear crotch portion 23 and a second rear waist portion 24 formed by cutting;

[0035] The outer layer 1 and the inner layer 2 are compounded by a melt adhesive layer 3;

[0036] The second front waist portion 21 and the second rear waist portion 24 at the waist are fixed by the adhesive layer 4 to form a closed ring waist structure.

[0037] It can be understood that after gluing the second front waist edge and the second back waist edge of the inner layer, a closed ring waist structure like underwear is formed; when the second front waist edge and the second back waist edge are opened through the glue layer, the inner layer is the part that contacts the human body, and the outer layer is the part that does not contact the human body.

[0038] Specifically, the melt adhesive layer is formed by hot melt adhesive. Between the outer layer 1 and the inner layer 2, only a small amount or trace amount (for example, 3-5g in weight) of hot melt adhesive is needed to form the melt adhesive layer to compound the outer layer and the inner layer. The overall thickness of the entire underwear body is uniform and does not affect the breathability.

[0039] The adhesive layer at the waistline is formed by a gluing process. Compared with the use of ultrasonic and spunbond auxiliary strips, the hardness of the adhesive layer is reduced, and no auxiliary strip is required for bonding, so that the disposable underwear can be 100% degradable. The gluing process is to apply hot melt adhesive on the upper and lower side seams by a glue gun, with a gram weight of about 15-30g and a coating width of 0.3-1cm, and then use a cylinder pressure roller or optical pressure equipment to press it, and the roller pressure is set at 0.01-0.3MPa; or other existing technologies are used to achieve gluing.

[0040] Therefore, the above technical solution solves the problem of low production efficiency of traditional disposable underwear, because the lamination of the outer layer and the inner layer can be quickly completed by automated equipment, which improves production efficiency. At the same time, the use of the melt adhesive layer ensures that the overall thickness of the underwear is uniform, does not affect the breathability, and improves the wearing comfort. In addition, the design of the closed ring waist structure enhances the fit and support of the underwear, improving the wearing experience.

[0041] Specifically, Figure 4 As shown, 3-8 elastic bands 5 are arranged between the outer layer 1 and the inner layer 2 corresponding to the front waist, and between the outer layer 1 and the inner layer 2 corresponding to the back waist. The cloth surface with elastic bands at the front waist and abdomen presents a pleated structure (structure ③) due to the contraction of the elastic bands, and different code segments can be set by controlling the elastic force of the elastic bands, which greatly saves the production cost.

[0042] Therefore, the above technical solution further solves the problem of the fit of the underwear by arranging 3-8 elastic bands between the outer layer and the inner layer corresponding to the front waist and the back waist. The arrangement of the elastic bands can be adjusted according to different waist sizes, so that the underwear can adapt to users of different body shapes, improving the wearing comfort and stability.

[0043] More specifically, 5 to 8 elastic bands may be provided between the inner layer and the outer layer at the waist and abdomen, with a stretching ratio of about 1.6 to 4 times, so as to create a size difference between the waist and abdomen and the buttocks based on the stretchability of the elastic bands.

[0044] Specifically, the spacing of the elastic band 5 is 2 mm, and the stretching ratio is 2-4 times. The stretching ratio of the elastic band is used to control the size of the hip circumference and waist circumference, thereby achieving the effect of distinguishing different size segments;

[0045] Therefore, the above technical solution stipulates that the spacing of the elastic band is 2mm and the stretching ratio is 2-4 times, so that the underwear can provide good support while maintaining appropriate elasticity and comfort, avoiding the problem of being too tight or too loose, and ensuring the adaptability and durability of the underwear.

[0046] Specifically, Figure 5 As shown, S-elastic bands 5 are symmetrically distributed between the outer layer 1 and the inner layer 2 corresponding to the front crotch portion, and between the outer layer 1 and the inner layer 2 corresponding to the back crotch portion.

[0047] Therefore, in the above technical solution, the distribution of the S elastic band helps to provide additional elasticity at key positions of the underwear, so that the wearer can move more freely and reduce the sense of restraint.

[0048] Specifically, the S elastic bands 5 are distributed at the lower edge of the waist and abdomen and the lower edge of the buttocks, and the spacing between the S elastic bands 5 is 10-14 cm.

[0049] Therefore, the above technical solution sets the specific distribution position and spacing of the S elastic bands at the lower edge of the waist and abdomen and the lower edge of the buttocks to 10-14 cm, which helps the underwear provide better support at key parts while maintaining wearing comfort and a natural appearance.

[0050] Specifically, Figure 5 As shown, an absorbent crotch sheet 6 is provided on the second front crotch portion 22 and the second rear crotch portion 23.

[0051] Therefore, the above technical solution facilitates the underwear to absorb external body fluids and is suitable for medical or physiological use.

[0052] Specifically, Figure 6As shown, the absorbent crotch sheet 6 is a detachable absorbent crotch sheet 6; the detachable absorbent crotch sheet 6 includes a permeable film 62 with a material layer 61 attached thereto, a non-woven fabric 63 composited on one side of the breathable film, and a Velcro 64 arranged on the bottom of the PE film; the Velcro 64 is arranged on the second front crotch portion 22 and the second rear crotch portion 23.

[0053] Specifically, the crotch part is composed of PE film, a small amount of wood pulp, polymer and spunlace non-woven fabric. The wood pulp and polymer are sprayed on the permeable film to form a material layer on the permeable film. Then the permeable film with the material layer attached is compounded with the spunlace non-woven fabric, and a Velcro is arranged at the bottom of the permeable film. The permeable film is a PE waterproof and breathable film.

[0054] Therefore, the above technical solution allows the absorbent crotch piece to be easily disassembled and replaced, thereby improving the practicality and hygiene of the underwear.

[0055] Specifically, two elastic bands 5 are respectively arranged on both sides of the absorbent crotch piece 6. Therefore, the above technical solution improves the support of the crotch portion, making the absorbent crotch piece more stable and not easy to shift.

[0056] More specifically, Figure 7-8 As shown, the S elastic bands distributed at the lower edge of the waist and abdomen and the lower edge of the buttocks are dotted (presenting a dotted distribution), and the dotted S elastic bands and the elastic bands on both sides of the crotch piece are connected together, so that when the disposable underwear has a closed ring waist structure, the presence of the S elastic band between the front abdomen and the buttocks can be reduced and avoided, and space can be provided for the crotch piece to be lengthened up and down, thereby improving the experience.

[0057] Specifically, the upper and lower sides of the absorbent crotch sheet 6 are extended to the waist and abdomen. Therefore, in the above technical solution, the upper and lower sides of the absorbent crotch sheet are extended to the waist and abdomen, and the elastic band is also extended accordingly, which helps to improve the overall support of the underwear, making it more comfortable to wear, and also helps to fix the absorbent crotch sheet to prevent it from shifting during activities and improve crotch sticking.

[0058] Specifically, the outer layer 1 and the inner layer 2 are both made of pure cotton spunlace non-woven fabrics.

[0059] Therefore, in the above technical solution, the use of 100% cotton spunlace non-woven fabric not only improves the comfort and breathability of underwear, but also enhances the environmental protection attributes, making the product easier to degrade after use, meeting the requirements of sustainable development.

[0060] The above is a specific description of the preferred implementation of the present application, but the invention of the present application is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent modifications or substitutions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. All-cotton disposable underwear, including: An outer layer (1), the outer layer (1) comprising a first front waist portion (11), a first front crotch portion (12), a first rear crotch portion (13) and a first rear waist portion (14) formed by cutting; An inner layer (2), the inner layer (2) comprising a second front waist portion (21), a second front crotch portion (22), a second rear crotch portion (23) and a second rear waist portion (24) formed by cutting; The invention is characterized in that the outer layer (1) and the inner layer (2) are compounded by a melt adhesive layer (3); The second front waist portion (21) and the second back waist portion (24) at the waistline are fixed by means of an adhesive layer (4) to form a closed annular waistline structure.

2. The all-cotton disposable underwear according to claim 1, characterized in that: 3 to 8 elastic bands (5) are arranged between the outer layer (1) and the inner layer (2) corresponding to the front waist, and between the outer layer (1) and the inner layer (2) corresponding to the back waist.

3. The all-cotton disposable underwear according to claim 2, characterized in that: The spacing between the elastic bands (5) is 2 mm, and the stretching ratio is 2-4 times.

4. The all-cotton disposable underwear according to claim 1, characterized in that: S-elastic bands (5) are symmetrically distributed between the outer layer (1) and the inner layer (2) corresponding to the front crotch portion, and between the outer layer (1) and the inner layer (2) corresponding to the back crotch portion.

5. The disposable cotton underwear according to claim 4, characterized in that: The S-elastic bands (5) are distributed at the lower edge of the waist and abdomen and the lower edge of the buttocks, and the spacing between the S-elastic bands (5) is 10-14 cm.

6. The all-cotton disposable underwear according to claim 1, characterized in that: An absorbent crotch sheet (6) is provided on the second front crotch portion (22) and the second rear crotch portion (23).

7. The all-cotton disposable underwear according to claim 6, characterized in that: The absorbent crotch sheet (6) is a detachable absorbent crotch sheet (6); the detachable absorbent crotch sheet (6) comprises a permeable film (62) to which a material layer (61) is attached, a non-woven fabric (63) laminated on one side of the breathable film, and a Velcro (64) arranged at the bottom of the PE film; the Velcro (64) is arranged on the second front crotch portion (22) and the second rear crotch portion (23).

8. The all-cotton disposable underwear according to claim 7, characterized in that: Two elastic bands (5) are arranged on each side of the absorbent crotch piece (6); the elastic bands (5) are distributed in a dotted manner at the lower edge of the waist and abdomen and the lower edge of the buttocks and are connected to the elastic bands on both sides of the absorbent crotch piece.

9. The all-cotton disposable underwear according to claim 7, characterized in that: The upper side and the lower side of the absorbent crotch piece (6) extend to the waist and abdomen.

10. The all-cotton disposable underwear according to claim 1, characterized in that: The outer layer (1) and the inner layer (2) are both made of pure cotton spunlace non-woven fabrics.

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