Breathable pull-ups with embedded printing layers

Abstract

The utility model discloses a pair of breathable pull-ups with embedded printing layers, which belongs to the technical field of absorbent hygienic products and comprises a surface layer, an absorbent core and a bottom layer which are sequentially arranged from top to bottom, and two transverse sides of the surface layer are respectively provided with a leakage-proof partition edge extending between the bottom surface of the absorbent core and the top surface of the bottom layer. The bottom layer is sequentially provided with inner lining cloth, a leakage-proof bottom film and outer lining cloth from top to bottom, the outer lining cloth is sequentially composed of an inner spunbond layer, a melt-blown layer and an outer spunbond layer from top to bottom, a printing layer is arranged on the face, close to the outer spunbond layer, of the melt-blown layer, the leakage-proof bottom film is in a wave shape in the transverse direction, and a plurality of flow guide grooves extending in the longitudinal direction are formed in the side, close to the absorption core body, of the bottom layer. According to the utility model, the printing layer is arranged inside the outer lining cloth, so that the printing layer can have both higher definition and stronger adhesive force.

Description

Technical Field

[0001] This utility model relates to the field of absorbent hygiene products technology, specifically to a breathable pull-up trousers with an embedded printed layer. Background Technology

[0002] As people's living standards improve, consumers not only have higher functional requirements for absorbent hygiene products such as baby pull-ups and diapers, but also pursue higher levels of personalized design. These hygiene products usually meet consumers' personalized needs through unique printed patterns. Currently, the printed patterns on pull-ups and diapers are usually printed on the outer non-woven fabric surface or the leak-proof bottom film surface. Patterns printed on the outer non-woven fabric surface are usually clearer, but the printed patterns are easily rubbed off by friction with other items during use. On the other hand, the printed coating on the leak-proof bottom film surface is not easy to rub off, but the printed patterns are relatively blurry after passing through the outer non-woven fabric, making it difficult to meet consumers' personalized needs and easily affecting the breathability of the leak-proof bottom film.

[0003] Based on the above, Chinese Patent Publication No. CN220237186U discloses an anti-slip pull-up trousers, including a pull-up trousers body, and further including: a flow-guiding layer and a polymer absorption layer sequentially disposed on the outer surface of the skin-friendly layer, a native fluff pulp layer disposed on the outer surface of the polymer absorption layer, an ultra-soft outer surface layer disposed on the outer surface of the native fluff pulp layer, a decorative pattern disposed on the outer surface of the ultra-soft outer surface layer, and elastic lace disposed on the left and right sides of the pull-up trousers body, etc.

[0004] The aforementioned patent document discloses a pull-up diaper with a decorative pattern on its surface. The decorative pattern is set on the outer surface of the ultra-soft outer layer of the pull-up diaper. Although it can make the decorative pattern clearer, the ultra-soft outer layer is usually made of non-woven fabric. Since non-woven fabric is composed of disordered cross-linking of fibers, its surface has a large number of pores and is uneven, which easily leads to poor adhesion of the decorative pattern. During the use of the pull-up diaper, the decorative pattern is easily rubbed off due to friction with other objects. Therefore, there is still room for improvement in this pull-up diaper. Utility Model Content

[0005] To address the technical deficiencies in the background technology, this utility model proposes a breathable pull-up trouser with an embedded printing layer, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows:

[0006] A breathable pull-up trouser with an embedded printed layer includes, from top to bottom, a top layer, an absorbent core, and a bottom layer. The top layer has leak-proof side panels extending to the bottom surface of the absorbent core and the top surface of the bottom layer on both sides of its lateral direction. The bottom layer has, from top to bottom, an inner lining, a leak-proof bottom membrane, and an outer lining. The outer lining is composed of an inner spunbond layer, a meltblown layer, and an outer spunbond layer from top to bottom. The meltblown layer has a printed layer on the side near the outer spunbond layer. The leak-proof bottom membrane has a wavy shape in the lateral direction. The bottom layer has several longitudinally extending guide grooves on the side near the absorbent core.

[0007] As a further technical solution of this utility model, the leak-proof bottom film and the outer lining are intermittently bonded and fixed in the transverse direction, and a number of breathable grooves extending in the longitudinal direction are formed between the leak-proof bottom film and the outer lining.

[0008] As a further technical solution of this utility model, the inner lining completely covers the surface of the leak-proof bottom membrane, and the guide groove is located between the inner lining and the absorbent core.

[0009] As a further technical solution of this utility model, the bottom of the absorbent core is provided with a number of downward protrusions, and the absorbent core is intermittently bonded and fixed to the bottom layer through the number of protrusions, and the guide groove is located between adjacent protrusions.

[0010] As a further technical solution of this utility model, the longitudinal ends of the inner lining cloth and the leak-proof bottom film are respectively bonded and fixed to the longitudinal ends of the absorbent core so that the longitudinal ends of the guide groove form a closed end.

[0011] As a further technical solution of this utility model, the two longitudinal ends of the outer lining are folded upward to cover the longitudinal end surface of the inner lining and form a front waistband and a back waistband. The front waistband and the back waistband are connected end to end to form a pull-up pants waistband.

[0012] As a further technical solution of this utility model, the front waistband and the back waistband are provided with a number of horizontally extending waistband elastic threads, and the waistband elastic threads form a number of folds on both sides of the front waistband and the back waistband through elastic contraction.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention improves the clarity of the printed pattern by placing a printed layer with a printed pattern on the surface of the meltblown layer. The printed layer is visible through the outer spunbond layer, which prevents the printed layer from rubbing against external objects and thus avoiding peeling. This allows the printed layer to achieve both high clarity and strong adhesion, meeting the personalized needs of consumers. In addition, the printed layer does not affect the breathability of the leak-proof bottom film. Furthermore, the leak-proof bottom film extends in a wavy shape to form several drainage channels and has a larger specific surface area, which enhances the efficiency of the leak-proof bottom film in expelling moist air, thereby improving the breathability of the pull-up pants. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of a breathable pull-up trouser with an embedded printed layer.

[0016] Figure 2 This is a longitudinal cross-sectional view of a breathable pull-up trouser with an embedded printed layer.

[0017] Figure 3 yes Figure 1 A partial schematic diagram of point A in the middle.

[0018] Among them: 1-Top layer, 2-Absorbent core, 21-Protrusion, 3-Bottom layer, 31-Inner lining, 32-Leak-proof bottom film, 33-Outer lining, 331-Inner spunbond layer, 332-Meltblown layer, 333-Outer spunbond layer, 334-Printed layer, 4-Leak-proof side panel, 5-Guiding groove, 6-Breathable groove, 7-Front waistband, 8-Back waistband, 9-Waistband elastic yarn. Detailed Implementation

[0019] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples. The embodiments of this utility model are not limited to the following examples, and this utility model relates to relevant necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.

[0020] Reference Figure 1 , Figure 2 , Figure 3 A breathable pull-up trouser with an embedded printed layer includes a top layer 1, an absorbent core 2, and a bottom layer 3 arranged sequentially from top to bottom. The top layer 1 has leak-proof partitions 4 extending to the bottom surface of the absorbent core 2 and the top surface of the bottom layer 3 on both sides of the transverse direction. The bottom layer 3 has an inner lining 31, a leak-proof bottom film 32, and an outer lining 33 arranged sequentially from top to bottom. The outer lining 33 is composed of an inner spunbond layer 331, a meltblown layer 332, and an outer spunbond layer 333 arranged sequentially from top to bottom. The meltblown layer 332 has a printed layer 334 on the side near the outer spunbond layer 333. The leak-proof bottom film 32 is wavy in shape along the transverse direction. The bottom layer 3 has several longitudinally extending guide grooves 5 formed on the side near the absorbent core 2.

[0021] To meet consumers' personalized needs and address the challenge of achieving both clarity and adhesion in printed patterns of absorbent hygiene products, this invention provides a pull-up diaper that improves adhesion while maintaining high clarity through an embedded printing layer 334. Figure 1 A cross-sectional view of the pull-up diaper after the waistband has been cut and unfolded. Figure 2 This is a longitudinal cross-sectional view of the pull-up trousers after the waistband has been cut and unfolded. The outer layer 1, absorbent core 2, and bottom layer 3 form the absorbent area of ​​the pull-up trousers. The outer lining fabric 33 is folded upwards at both ends to cover the longitudinal ends of the inner lining fabric 31, forming a front waistband 7 and a back waistband 8. The front waistband 7 and back waistband 8 are connected end-to-end to form the pull-up trouser waistband. The absorbent area is fixed to the pull-up trouser waistband to form an underwear-like pull-up trouser. In this pull-up trouser, the outer layer 1 is located inside the pull-up trouser and is in direct contact with the human body. The outer layer 1 is preferably a hot-air nonwoven fabric to improve comfort when in contact with the skin. The absorbent core 2 is composed of spunbond nonwoven fabric from top to bottom. The absorbent core 2 is composed of absorbent resin, fluffy cotton, absorbent resin, and SMS nonwoven fabric. The spunbond nonwoven fabric can promote urine diffusion and prevent urine backflow. The absorbent resin and fluffy cotton are the main absorbent components of the absorbent core 2. The SMS nonwoven fabric can improve the breathability of the absorbent core 2. In the bottom layer 3, the inner lining 31 is preferably SSS nonwoven fabric, which is conducive to promoting the diffusion of urine at the bottom of the absorbent core 2. The leak-proof bottom membrane 32 is preferably a waterproof and breathable polyethylene membrane, which can prevent urine from leaking to the surface of the pull-up pants and improve breathability. The outer lining 33 is preferably SMS nonwoven fabric. The outer lining 33 is located on the outside of the pull-up pants, which is conducive to improving the comfort of the pull-up pants surface.

[0022] With the above structure, it should be further explained that in the outer lining 33, both the inner spunbond layer 331 and the outer spunbond layer 333 are spunbond nonwoven fabrics, and the meltblown layer 332 is a meltblown nonwoven fabric. The SMS nonwoven fabric is obtained by laminating two layers of spunbond nonwoven fabric with one layer of meltblown nonwoven fabric. Before laminating the meltblown nonwoven fabric with the two layers of spunbond nonwoven fabric, the pattern to be printed on the pull-up diaper is first printed on the surface of the meltblown nonwoven fabric to form a printing layer 334. Then, the printed meltblown nonwoven fabric is laminated with the two layers of spunbond nonwoven fabric to obtain the outer lining 33. The printing layer 334 is located near the outer side of the pull-up diaper, and the user can see the pattern on the surface of the printing layer 334 through the outer spunbond layer 333. In common absorbent hygiene products, this is usually... The printed layer 334 is disposed on the surface of the leak-proof bottom membrane 32. Users need to see the printed layer 334 through the three-layer structure of commonly used SMS nonwoven fabric or SSS spunbond nonwoven fabric. This invention, by disposing the printed layer 334 on the surface of the meltblown layer 332, can improve the clarity of the pattern and prevent the printed layer 334 from directly contacting external objects and thus detaching. In addition, the meltblown nonwoven fabric is made of finer fibers and has a higher surface smoothness, which is beneficial to improving the adhesion strength of the printed layer 334 on its surface. Furthermore, disposing the printed layer 334 on the surface of the meltblown layer 332 can prevent the printing ink from affecting the breathability of the leak-proof bottom membrane 32, which is beneficial to maintaining the high breathability of the pull-up pants.

[0023] With the above structure, it should be further explained that the leak-proof bottom membrane 32 forms several drainage channels 5 by extending in a wavy shape in the transverse direction. When urine permeates to the bottom of the absorbent core 2, these drainage channels 5 can allow the urine to spread quickly in the longitudinal direction through the inner lining fabric 31, increasing the contact area between the urine and the absorbent core 2 and improving the absorption efficiency of the absorbent core 2. This prevents urine from lingering at the bottom of the absorbent core 2 for a long time. At the same time, the leak-proof bottom membrane 32 has a larger specific surface area at the bottom of the absorbent core 2 due to its wavy shape, thereby efficiently expelling the humid air from the bottom of the absorbent core 2 and the drainage channels 5 out of the pull-up pants, which helps to improve the breathability of the pull-up pants.

[0024] As one of the preferred embodiments of this utility model, refer to Figure 1The leak-proof bottom membrane 32 and the outer lining fabric 33 are intermittently bonded and fixed in the transverse direction. Several longitudinally extending breathable grooves 6 are formed between the leak-proof bottom membrane 32 and the outer lining fabric 33. Several transversely extending elastic spandex threads can be set between the leak-proof bottom membrane 32 and the outer lining fabric 33 for restraint. During the use of the pull-up pants, their outer side is usually frequently subjected to external pressure. The elastic spandex threads can make the leak-proof bottom membrane 32 and the outer lining fabric 33, which are deformed by pressure, quickly return to their original shape. During the process of the leak-proof bottom membrane 32 and the outer lining fabric 33 being deformed by pressure and returning to their original shape, the flow channels 5 and the breathable grooves 6 can be accelerated to circulate with the outside air, thereby efficiently expelling the humid air at the bottom of the absorbent core 2 and in the flow channels 5 from the pull-up pants, which is beneficial to improving the breathability of the pull-up pants.

[0025] As one of the preferred embodiments of this utility model, refer to Figure 1 The inner lining 31 completely covers the surface of the leak-proof bottom membrane 32. The drainage channel 5 is located between the inner lining 31 and the absorbent core 2. With this structure, the main function of the leak-proof bottom membrane 32 is to act as a leak-proof structure for the drainage channel 5, preventing urine in the drainage channel 5 from leaking to the outside of the pull-up pants. The inner lining 31 can generate a capillary effect through the gaps between the fibers to promote the diffusion of urine in the drainage channel 5 and its absorption by the absorbent core 2, thereby improving the absorption efficiency of the absorbent core 2.

[0026] As one of the preferred embodiments of this utility model, refer to Figure 1 The bottom of the absorbent core 2 is provided with several downward protrusions 21. The protrusions 21 can be formed by intermittently applying water-absorbing resin during the manufacturing process of the absorbent core 2. The absorbent core 2 is intermittently bonded and fixed to the bottom layer 3 by several protrusions 21. The guide groove 5 is located between adjacent protrusions 21. When the absorbent core 2 absorbs urine, the protrusions 21 will expand and form a groove between adjacent protrusions 21 that matches the guide groove 5, which can increase the contact area between the absorbent core 2 and the urine, thereby improving the absorption efficiency of the absorbent core 2.

[0027] As one of the preferred embodiments of this utility model, refer to Figure 1 , Figure 2 The inner lining 31 and the leak-proof bottom film 32 are respectively bonded and fixed to the longitudinal ends of the absorbent core 2 so that the longitudinal ends of the guide channel 5 form closed ends. The closed ends serve as the ends of the longitudinal ends of the guide channel 5, which can intercept the longitudinally diffused urine and prevent urine from leaking along the longitudinal ends of the absorbent area to the waistband of the pull-up pants and the outside of the pull-up pants, thus ensuring the dryness of the waistband of the pull-up pants and the surface of the pull-up pants.

[0028] As one of the preferred embodiments of this utility model, refer to Figure 2Both the front waistband 7 and the back waistband 8 are provided with several horizontally extending waist elastic threads 9. The waist elastic threads 9 form several pleats on both sides of the front waistband 7 and the back waistband 8 through elastic contraction. The waist elastic threads 9 are preferably fine denier elastic spandex yarn. The waist elastic threads 9 can make the pull-up diaper waistband have enough elasticity to restrain the pull-up diaper around the baby's waist without feeling tight, thus improving the comfort of the pull-up diaper. The pleats formed on the outside of the pull-up diaper waistband are connected to the ventilation grooves 6, so that the ventilation effect of the ventilation grooves 6 can act on the pull-up diaper waistband, thus improving the breathability of the pull-up diaper waistband.

[0029] In summary, by setting a printed layer 334 with a printed pattern on the surface of the meltblown layer 332, and displaying the printed layer 334 through the outer spunbond layer 333, the present invention can improve the clarity of the pattern in the printed layer 334, and at the same time prevent the printed layer 334 from rubbing against external objects and falling off. This allows the printed layer 334 to achieve both high clarity and strong adhesion, meeting the personalized needs of consumers. In addition, the printed layer 334 does not affect the breathability of the leak-proof bottom film 32. Furthermore, the leak-proof bottom film 32 extends in a wavy shape to form several drainage channels 5 and has a larger specific surface area, which enhances the efficiency of the leak-proof bottom film 32 in expelling moist air, thereby improving the breathability of the pull-up pants.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A breathable pull-up trouser with an embedded printed layer, comprising a top layer (1), an absorbent core (2), and a bottom layer (3) arranged sequentially from top to bottom, characterized in that, The surface layer (1) has leak-proof partitions (4) extending to the bottom surface of the absorbent core (2) and the top surface of the bottom layer (3) on both sides of the transverse direction. The bottom layer (3) is provided with an inner lining (31), a leak-proof bottom film (32), and an outer lining (33) from top to bottom. The outer lining (33) is composed of an inner spunbond layer (331), a meltblown layer (332), and an outer spunbond layer (333) from top to bottom. The meltblown layer (332) is provided with a printed layer (334) on the side near the outer spunbond layer (333). The leak-proof bottom film (32) is wavy in shape along the transverse direction. The bottom layer (3) forms several longitudinally extending guide grooves (5) on the side near the absorbent core (2).

2. The breathable pull-up pants embedded in the printed layer according to claim 1, characterized in that, The leak-proof bottom membrane (32) and the outer lining (33) are intermittently bonded together in the transverse direction, and a number of longitudinally extending air-permeable grooves (6) are formed between the leak-proof bottom membrane (32) and the outer lining (33).

3. The breathable pull-up pants embedded in the printed layer according to claim 1, characterized in that, The inner lining (31) completely covers the surface of the leak-proof bottom membrane (32), and the guide groove (5) is located between the inner lining (31) and the absorbent core (2).

4. The breathable pull-up pants embedded in the printed layer according to claim 1, characterized in that, The bottom of the absorbent core (2) is provided with several downward protrusions (21). The absorbent core (2) is intermittently bonded to the bottom layer (3) through several protrusions (21). The guide groove (5) is located between adjacent protrusions (21).

5. The breathable pull-up pants embedded in the printed layer according to claim 1, characterized in that, The inner lining (31) and the leak-proof bottom membrane (32) are respectively bonded and fixed to the longitudinal ends of the absorbent core (2) so that the longitudinal ends of the guide groove (5) form a closed end.

6. The breathable pull-up pants embedded in the printed layer according to claim 1, characterized in that, The outer lining (33) is folded upward at both ends to cover the longitudinal end surface of the inner lining (31) and forms the front waistband (7) and the back waistband (8). The front waistband (7) and the back waistband (8) are connected end to end to form the pull-up pants waistband.

7. The breathable pull-up pants embedded in the printed layer according to claim 6, characterized in that, Both the front waist (7) and the back waist (8) are provided with several horizontally extending waist elastic threads (9), and the waist elastic threads (9) form several folds on both sides of the front waist (7) and the back waist (8) through elastic contraction.

Images