Hygienic product and composite device thereof

Abstract

The composite device comprises a front waistline part, a rear waistline part and a core layer, the rear waistline part is arranged at the tail end of the front waistline part, and the core layer is arranged between the front waistline part and the rear waistline part. Each of the front waistline part and the rear waistline part comprises a surface layer, a bottom layer and a staggered composite light elastic component arranged between the surface layer and the bottom layer, the staggered composite light elastic component can be compounded by two layers of materials, the interval between adjacent rubber bands is 2-2.45 mm, the three layers of materials are compounded by the rubber bands in a staggered manner, the interval between the adjacent rubber bands is 2-2.45 mm, and each non-woven fabric has the basis weight smaller than 6 g / m < 2 >. According to the non-woven fabric, the requirement for the precision of a spraying device during manufacturing is lowered, so that the spraying cost and difficulty in the manufacturing process are reduced, meanwhile, the gram weight of the non-woven fabric is small, the overall weight is reduced, after the non-woven fabric is manufactured into hygienic products, the overall weight can be reduced, and the use comfort level is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of elastic nonwoven fabric, specifically to a hygiene product and its composite device. Background Technology

[0002] Absorbent sanitary materials, including feminine hygiene products such as sanitary napkins and panty liners, as well as baby hygiene products such as baby diapers and adult care products such as adult diapers, all require the use of elastic nonwoven fabrics for fit and padding around the wearer's waist, legs, crotch, and sides, typically to provide maximum stretch, the most comfortable wearing conditions, improved leak protection, and a better fit.

[0003] Existing elastic nonwoven fabrics generally consist of two layers of nonwoven fabric with multiple elastic bands inserted between them. To ensure elasticity, manufacturers aim to minimize the spacing between these elastic bands. However, during the fabrication of the elastic layer, adhesive is typically applied to each elastic band. This involves placing multiple elastic bands into the slots of a specialized spraying device, one band per slot, and then applying adhesive using a spray gun. This method has several drawbacks: the smaller the spacing between the elastic bands, the higher the precision required for the spraying device's slots. Typical spraying devices struggle to achieve this precision, increasing both cost and difficulty. Furthermore, the weight of the nonwoven fabric, ranging from approximately 6 g / m² to approximately 30 g / m², leads to an increased overall weight, reducing wearer comfort. Therefore, a new type of hygiene product and its preparation method are needed. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the background art and provide a hygiene product and its composite device.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A sanitary product includes a front waistband, a back waistband, and a core layer. The back waistband is located at the end of the front waistband, and the core layer is located between the front waistband and the back waistband. Both the front waistband and the back waistband include a top layer, a bottom layer, and a staggered composite lightweight elastic component located between the two layers.

[0007] By using offset composite lightweight elastic components, the precision requirements of the spraying equipment are reduced during manufacturing, thereby reducing the cost and difficulty of spraying during the manufacturing process. At the same time, the low basis weight of the non-woven fabric reduces the overall weight, making the overall weight of the sanitary products lighter and enhancing the comfort of use.

[0008] Preferably, the staggered composite lightweight elastic component includes a first nonwoven fabric, a second nonwoven fabric, and a third nonwoven fabric stacked sequentially. A first elastic band group is provided between the first and second nonwoven fabrics, and a second elastic band group is provided between the second and third nonwoven fabrics. Both the first and second elastic band groups are composed of several arrays of first elastic bands. The spacing between two adjacent first elastic bands in each group is 4~4.9mm. The projections of adjacent groups of elastic bands in the vertical direction are staggered. After composite, the combined spacing of adjacent first elastic bands is 2~2.45mm. The first, second, and third nonwoven fabrics each have a basis weight of less than 6 grams per square meter.

[0009] This invention features a first elastic band group on a first nonwoven fabric and a second elastic band group on a third nonwoven fabric. The elastic bands are spaced far apart on their respective nonwoven fabrics, but the spacing decreases after lamination. This allows the resulting elastic nonwoven fabric to meet the requirement of smaller spacing while reducing the precision requirements of the spraying device, thereby reducing the cost and difficulty of spraying during the manufacturing process. At the same time, the addition of a second nonwoven fabric in the middle strengthens the fabric's rigidity. Furthermore, the lower basis weight of the nonwoven fabric reduces the overall weight. As a result, the overall weight can be reduced after multi-layer lamination, enhancing the comfort of use.

[0010] Preferably, the staggered composite lightweight elastic component includes a first nonwoven fabric and a second nonwoven fabric stacked sequentially. The upper surface of the first nonwoven fabric is provided with a first elastic band group, and the upper surface of the second nonwoven fabric is provided with a second elastic band group. Both the first and second elastic band groups are composed of an array of several first elastic bands. The spacing between two adjacent first elastic bands in each group is 4~4.9mm. The projections of adjacent groups of elastic bands in the vertical direction are staggered. After composite, the combined spacing of adjacent first elastic bands is 2~2.45mm. The first and second nonwoven fabrics each have a basis weight of less than 6 grams per square meter.

[0011] This invention features a first elastic band group on a first nonwoven fabric and a second elastic band group on a second nonwoven fabric. The elastic bands are spaced far apart on their respective nonwoven fabrics, but the spacing decreases after they are combined. This allows the resulting elastic nonwoven fabric to meet the requirement of smaller spacing while reducing the precision requirements of the spraying device, thereby reducing the cost and difficulty of spraying during the manufacturing process. At the same time, the low basis weight of the nonwoven fabric reduces the overall weight, making the overall weight lighter after multi-layer composite and improving the comfort of use.

[0012] Preferably, the bottom layer can be made of knitted fabric, which ensures elasticity and is more skin-friendly, thereby enhancing user comfort.

[0013] A method for preparing a hygiene product includes the following steps:

[0014] S1, First layer of adhesive coating: The upper surfaces of the first nonwoven fabric 1 and the third nonwoven fabric 3, which have a basis weight of less than 6 g / m², are coated with adhesive.

[0015] S2, apply the first layer of elastic rubber. The first elastic rubber group 11 is sprayed with glue through the first elastic rubber group guide roller 51 of the composite device 5, and then adhered to the upper surface of the first nonwoven fabric 1. The second elastic rubber group 21 is sprayed with glue through the second elastic rubber group guide roller 52, and then adhered to the upper surface of the third nonwoven fabric 3. The projections of the two adjacent groups of elastic rubber in the vertical direction are staggered. The spacing between the two adjacent first elastic rubbers 110 in each group is 4~4.9mm.

[0016] S3, Non-woven fabric composite: The first non-woven fabric 1 with the first elastic elastic band group 11, the third non-woven fabric 3 with the second elastic elastic band group 21, and the second non-woven fabric 2 are pressed together by the first pressing roller group 54, so that the first elastic elastic band and the second elastic elastic band are interleaved and composited, so that the combination spacing of the first elastic elastic band 110 and the second elastic elastic band 310 is 2~2.45mm, and the staggered composite lightweight elastic component 90 is obtained.

[0017] S4, Apply adhesive to the top layer 921 and the bottom layer 922, and apply adhesive to the upper surfaces of the top layer 921 and the bottom layer 922;

[0018] S6, pressing, combining the glued surface layer 921, bottom layer 922 with the misaligned composite lightweight elastic component 90 to form a laminated structure;

[0019] S6, Rolling: Rolling the laminated structure after pressing to make the laminated structure fit together better;

[0020] S7, Combination, combines the layered structure and the core to create sanitary products.

[0021] The composite device includes a first elastic band guide roller, a first elastic band breakage alarm mechanism, a second elastic band guide roller, a second elastic band breakage alarm mechanism, a first pressing roller group, a second pressing roller group, and an intermediate layer guide roller. The first and second elastic band guide rollers are located above the first pressing roller group and are symmetrically arranged. The first elastic band breakage alarm mechanism is located to the left of the first elastic band guide roller, and the second elastic band breakage alarm mechanism is located to the right of the second elastic band guide roller. The second pressing roller group is located below the first pressing roller group, and the intermediate layer guide roller is located above the first pressing roller group. Each elastic band is equipped with a breakage alarm mechanism. A glue spray gun group is located behind each of the two elastic band guide rollers. Each glue spray gun group corresponds to one elastic band. The first nonwoven fabric, the third nonwoven fabric, the surface layer, and the bottom layer are all glued using the glue spray guns.

[0022] This invention uses a first set of elastic elastic bands as guide rollers to spray glue onto the elastic elastic bands to be applied to the first nonwoven fabric, which are then adhered to the upper surface of the first nonwoven fabric. Similarly, a second set of elastic elastic bands as guide rollers sprays glue onto the elastic elastic bands to be applied to the third nonwoven fabric, which are then adhered to the upper surface of the third nonwoven fabric. The projections of adjacent sets of elastic elastic bands in the vertical direction are staggered. The second nonwoven fabric is guided by an intermediate layer guide roller and then pressed together with the first and third nonwoven fabrics, causing the first and second elastic elastic bands to interweave and form a composite nonwoven fabric with reduced elastic band spacing. This is then laminated with a top layer and a bottom layer, and finally processed into sanitary products. This process eliminates the need for manual labor and improves efficiency.

[0023] Preferably, both the first and second elastic band breakage alarm mechanisms include a C-shaped fixing frame, an upper guide ring, a lower guide ring, a tensioning roller, a fixed shaft, a magnet, a Hall sensor, a tensioning electric push rod, and a pressure sensor. The upper guide ring is located above the C-shaped fixing frame, and the lower guide ring is located below the C-shaped fixing frame. A support plate is provided in the middle of the C-shaped fixing frame. The fixed shaft is located on the side wall of the support plate. The tensioning roller is rotatably fixed to the fixed shaft via a bearing. A horizontal plate is vertically fixed to the starting end of the support plate. The tensioning electric push rod is fixed to the C-shaped fixing frame, and the push rod end of the tensioning electric push rod is fixedly connected to the horizontal plate. The magnet is fixed to the side wall of the tensioning roller near the support plate. The Hall sensor is fixed to the support plate and cooperates with the magnet. The pressure sensor is located between the bearing and the inner side wall of the tensioning roller.

[0024] This invention uses a pressure sensor to detect pressure, thereby controlling the extension and retraction of the tensioning electric push rod, which in turn drives the tensioning roller to move. This not only achieves yarn tensioning, but also uses the tensioning action to drive the elastic band to rotate the tensioning roller. The tensioning roller can detect yarn breakage, thus effectively detecting yarn breakage and preventing batch accidents in a timely manner.

[0025] Preferably, the tensioning roller includes a roller body, and an elastic rubber receiving cavity is formed in the middle of the roller body. The elastic rubber receiving cavity has a plurality of protrusions arranged in an array along the circumferential direction.

[0026] This invention enhances friction by using protruding blocks to ensure that the elastic rubber band can drive the tensioning roller to rotate.

[0027] Preferably, the elastic rubber receiving cavity has a groove that cooperates with the protrusion, the groove has a hook and loop fastener, and the bottom of the protrusion has a hook and loop fastener that cooperates with the hook and loop fastener.

[0028] This invention achieves a detachable connection between the raised block and the hook and loop side of the Velcro, making it easy to replace the raised block after it wears out during long-term use, thus extending the service life of the alarm mechanism.

[0029] Preferably, both the first elastic elastic band guide roller and the second elastic elastic band guide roller include a roller body. The roller body has a plurality of partitions arranged in a circumferential direction. An elastic band receiving cavity is formed between two adjacent partitions. The elastic band receiving cavities on the first elastic elastic band guide roller and the elastic band receiving cavities on the second elastic elastic band guide roller are staggered to guide the elastic elastic bands bonded to the first nonwoven fabric and the third nonwoven fabric, so that they are misaligned after subsequent lamination.

[0030] Preferably, both the first pressing roller group and the second pressing roller group include two rotating rollers arranged in parallel to each other to achieve pressing.

[0031] Preferably, the upper and lower guide rings are made of ceramic material to reduce friction.

[0032] In summary, the beneficial effects of this utility model are as follows:

[0033] 1. This utility model adopts a staggered composite lightweight elastic component, which reduces the precision requirements of the spraying device during manufacturing, thereby reducing the cost and difficulty of spraying during the manufacturing process. At the same time, the non-woven fabric has a low basis weight, which reduces the overall weight, so that the overall weight of the sanitary products can be reduced and the comfort of use can be enhanced.

[0034] 2. This utility model provides a first elastic band group on a first non-woven fabric and a second elastic band group on a third non-woven fabric. The elastic bands are spaced far apart on their respective non-woven fabrics, and the spacing is reduced after they are combined. This allows the resulting elastic non-woven fabric to meet the requirement of smaller spacing while reducing the precision requirements of the spraying device, thereby reducing the cost and difficulty of spraying during the manufacturing process. At the same time, the addition of a second non-woven fabric in the middle strengthens the fabric's firmness. Furthermore, the lower basis weight of the non-woven fabric reduces the overall weight. This multi-layer composite design reduces the overall weight and enhances the comfort of use.

[0035] 3. This utility model uses a first set of elastic rubber band guide rollers to spray glue onto the elastic rubber bands to be applied to the first non-woven fabric, and then adheres them to the upper surface of the first non-woven fabric. Similarly, a second set of elastic rubber band guide rollers sprays glue onto the elastic rubber bands to be applied to the third non-woven fabric, and then adheres them to the upper surface of the third non-woven fabric. The projections of adjacent sets of elastic rubber bands in the vertical direction are staggered. The second non-woven fabric is guided by an intermediate layer guide roller and then pressed together with the first and third non-woven fabrics, causing the first and second elastic rubber bands to interweave and form a composite non-woven fabric with reduced elastic rubber band spacing. This is then laminated with a top layer and a bottom layer, and finally processed into sanitary products. This process eliminates the need for manual labor and improves efficiency.

[0036] 4. This utility model uses a pressure sensor to detect pressure, thereby controlling the extension and retraction of the tensioning electric push rod, which in turn drives the tensioning roller to move. This not only achieves yarn tensioning, but also uses the tensioning action to drive the elastic rubber band to rotate the tensioning roller. The tensioning roller can detect yarn breakage, thus effectively detecting yarn breakage and preventing batch accidents in a timely manner. Attached Figure Description

[0037] Figure 1 This is a cross-sectional schematic diagram of the misaligned composite lightweight elastic nonwoven fabric of Embodiment 4 of this utility model;

[0038] Figure 2 This is a cross-sectional schematic diagram of the misaligned composite lightweight elastic component of Embodiment 1 of this utility model;

[0039] Figure 3 This is a schematic diagram of the composite device according to Embodiment 4 of this utility model;

[0040] Figure 4 This is a schematic diagram of the first elastic rubber band guide roller of this utility model;

[0041] Figure 5 This is a schematic diagram of the first rubber band breakage alarm mechanism of this utility model;

[0042] Figure 6 This is a schematic diagram of the back of the first rubber band breakage alarm mechanism of this utility model;

[0043] Figure 7 This is a schematic diagram of the left side of the first rubber band breakage alarm mechanism of this utility model;

[0044] Figure 8 This is a top view schematic diagram of the first rubber band breakage alarm mechanism of this utility model;

[0045] Figure 9 This is a schematic diagram showing the position of the pressure sensor of this utility model;

[0046] Figure 10 This is a three-dimensional schematic diagram of the tensioning roller of this utility model;

[0047] Figure 11 This is a schematic diagram of the groove of the tension roller of this utility model;

[0048] Figure 12 This is a schematic diagram of the sanitary product of this utility model;

[0049] Figure 13 This is a schematic diagram of the composite device according to Embodiment 1 of this utility model.

[0050] The following specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model. Detailed Implementation

[0051] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0052] Example 1

[0053] like Figure 12 As shown, it includes a front waistband 91, a back waistband 92, and a core layer 94. The back waistband 92 is located at the end of the front waistband 91, and the core layer 94 is located between the front waistband 91 and the back waistband 92. Both the front waistband 91 and the back waistband 92 include a surface layer 921, a bottom layer 922, and a staggered composite lightweight elastic component 90 located between the two layers. The staggered composite lightweight elastic component 90 can also be used in menstrual pants, adult incontinence pants, and other fields.

[0054] like Figure 2As shown, the staggered composite lightweight elastic component 90 includes a first nonwoven fabric 1, a second nonwoven fabric 2, and a third nonwoven fabric 3 stacked sequentially. A first elastic band group 11 is provided between the first nonwoven fabric 1 and the second nonwoven fabric 2, and a second elastic band group 21 is provided between the second nonwoven fabric 2 and the third nonwoven fabric 3. Both the first elastic band group 11 and the second elastic band group 21 are composed of an array of several first elastic bands 110. The spacing between two adjacent first elastic bands 110 in each group is 4.9 mm. The projections of adjacent groups of elastic bands in the vertical direction are staggered. After composite, the combined spacing of adjacent first elastic bands 110 is 2.45 mm. The first nonwoven fabric 1, the second nonwoven fabric 2, and the third nonwoven fabric 3 each have a basis weight of less than 6 grams per square meter.

[0055] A method for preparing a hygiene product, characterized by comprising the following steps:

[0056] S1, First layer of adhesive coating: The upper surfaces of the first nonwoven fabric 1 and the third nonwoven fabric 3, which have a basis weight of less than 6 g / m², are coated with adhesive.

[0057] S2, apply the first layer of elastic rubber. The first elastic rubber group 11 is sprayed with glue through the first elastic rubber group guide roller 51 of the composite device 5 and then adhered to the upper surface of the first nonwoven fabric 1. The second elastic rubber group 21 is sprayed with glue through the second elastic rubber group guide roller 52 and then adhered to the upper surface of the third nonwoven fabric 3. The projections of adjacent elastic rubber groups in the vertical direction are staggered, and the spacing between two adjacent first elastic rubber groups 110 in each group is 4.9mm.

[0058] S3, Non-woven fabric composite: The first non-woven fabric 1 with the first elastic elastic band group 11, the third non-woven fabric 3 with the second elastic elastic band group 21, and the second non-woven fabric 2 are pressed together by the first pressing roller group 54, so that the first elastic elastic band and the second elastic elastic band are interleaved and composited, so that the combination spacing of the first elastic elastic band 110 and the second elastic elastic band 310 is 2.45mm, and the misaligned composite lightweight elastic component 90 is obtained.

[0059] S4, Apply adhesive to the top layer 921 and the bottom layer 922, and apply adhesive to the upper surfaces of the top layer 921 and the bottom layer 922;

[0060] S6, pressing, combining the glued surface layer 921, bottom layer 922 with the misaligned composite lightweight elastic component 90 to form a laminated structure;

[0061] S6, Rolling: Rolling the laminated structure after pressing to make the laminated structure fit together better;

[0062] S7, Combination, combines the layered structure and the core to create sanitary products.

[0063] like Figure 13 As shown, the composite device 5 includes a first elastic elastic band guide roller 51, a first elastic band breakage alarm mechanism 56, a second elastic elastic band guide roller 52, a second elastic band breakage alarm mechanism 57, a first pressing roller group 54, a second pressing roller group 55, and an intermediate layer guide roller 540. The first elastic elastic band guide roller 51 and the second elastic elastic band guide roller 52 are located above the first pressing roller group 54, and are symmetrically arranged on the left and right sides. The first elastic band breakage alarm mechanism 56 is located to the left of the first elastic elastic band guide roller 51, and the second elastic band breakage alarm mechanism 57 is located to the left of the second elastic elastic band guide roller 540. To the right of roller 52, the second pressing roller group 55 is located below the first pressing roller group 54, and the intermediate layer guide roller 540 is located above the first pressing roller group 54. Both the first elastic rubber band guide roller 51 and the second elastic rubber band guide roller 52 include a roller body 511. The roller body 511 has a plurality of partitions 512 arranged in a circumferential direction. An elastic band receiving cavity 513 is formed between two adjacent partitions 512. The elastic band receiving cavities 513 on the first elastic rubber band guide roller 51 and the elastic band receiving cavities 513 on the second elastic rubber band guide roller 52 are staggered. Both the first pressing roller group 54 and the second pressing roller group 55 include two rotating rollers 541 arranged in parallel to each other.

[0064] like Figure 4-11As shown, both the first elastic band breakage alarm mechanism 56 and the second elastic band breakage alarm mechanism 57 include a C-shaped fixing frame 581, an upper guide ring 582, a lower guide ring 583, a tensioning roller 584, a fixed shaft 585, a magnet 586, a Hall sensor 587, a tensioning electric push rod 588, and a pressure sensor 560. The upper guide ring 582 is located above the C-shaped fixing frame 581, and the lower guide ring 583 is located below the C-shaped fixing frame 581. A support plate 589 is provided in the middle of the C-shaped fixing frame 581, and the fixed shaft 585 is located on the side wall of the support plate 589. The tensioning roller 584 is rotatably fixed to the fixed shaft 585 by a bearing. A horizontal plate 580 is vertically fixed at the starting end of the support plate 589. The tensioning electric push rod 588 is fixed to the C-shaped fixing frame 581. The end is fixedly connected to the horizontal plate 580. The magnet 586 is fixed on the side wall of the tension roller 584 near the support plate 589. The Hall sensor 587 is fixed on the support plate 589 and cooperates with the magnet 586. The pressure sensor 560 is located between the bearing and the inner side wall of the tension roller 584. The tension roller 584 includes a roller body 571. An elastic rubber receiving cavity 572 is formed in the middle of the roller body. The elastic rubber receiving cavity 572 has a plurality of protrusions 573 arranged in a circumferential direction. The elastic rubber receiving cavity 572 has a groove 574 that cooperates with the protrusions 573. The groove 574 has a hook and loop fastener surface. The bottom of the protrusion 573 has a hook and loop fastener surface that cooperates with the hook and loop fastener surface. The upper guide ring 582 and the lower guide ring 583 are made of ceramic material.

[0065] Working principle: such as Figure 1-12As shown, in the first layer of adhesive coating, the upper surfaces of the first nonwoven fabric 1 and the third nonwoven fabric 3, with a basis weight of less than 6 g / m², are coated with adhesive using a glue spray gun. Simultaneously, the elastic elastics of each of the first elastic elastic band groups are guided by the elastic rubber receiving cavity 572 of the first elastic elastic band group guide roller 51 to the corresponding glue spray gun for spraying, and then adhered to the upper surface of the first nonwoven fabric 1. At the same time, the second elastic elastic band group 21 is sprayed with adhesive through the second elastic elastic band group guide roller 52 and then adhered to the upper surface of the third nonwoven fabric 3. The projections of adjacent groups of elastic elastic bands in the vertical direction are staggered. The first nonwoven fabric 1 with the first elastic elastic band group 11 adhered and the third nonwoven fabric 3 with the second elastic elastic band group 21 adhered are... The third nonwoven fabric 3 and the intermediate second nonwoven fabric 2 are pressed together by the first pressing roller group 54, so that the first elastic rubber band and the second elastic rubber band are interlaced and compounded, and the combination spacing of the first elastic rubber band 110 and the second elastic rubber band 310 is 2.45mm, resulting in a staggered composite lightweight elastic component 90. The upper surfaces of the surface layer 921 and the bottom layer 922 are coated with adhesive, and the coated surface layer 921, bottom layer 922 and staggered composite lightweight elastic component 90 are compounded to form a laminated structure. The laminated structure is rolled to make the laminated structure fit better, and the laminated structure and the core are combined to produce a sanitary product.

[0066] In use, the elastic band passes through the upper guide ring 582, around the tensioning roller 584, and then through the lower guide ring 583 below the tensioning roller 584. During operation, the pressure sensor 560 detects the pressure, thereby controlling the extension and retraction of the tensioning electric push rod 588, which in turn pushes the tensioning roller 584 to move, thus tensioning the elastic band. The tensioned elastic band moves, driving the tensioning roller 584 to rotate. The magnet 586 on the tensioning roller 584, in conjunction with the sensor 9, enables real-time detection. When the elastic band breaks, the tensioning roller 584 will not move, and the sensor 560 will not detect the magnet 586, thus providing feedback on the broken wire. The controller then activates the alarm light to prevent mass accidents from occurring.

[0067] Example 2

[0068] Unlike Example 1,

[0069] like Figure 2As shown, the staggered composite lightweight elastic component 90 includes a first nonwoven fabric 1, a second nonwoven fabric 2, and a third nonwoven fabric 3 stacked sequentially. A first elastic band group 11 is provided between the first nonwoven fabric 1 and the second nonwoven fabric 2, and a second elastic band group 21 is provided between the second nonwoven fabric 2 and the third nonwoven fabric 3. Both the first elastic band group 11 and the second elastic band group 21 are composed of an array of several first elastic bands 110. The spacing between two adjacent first elastic bands 110 in each group is 4 mm. The projections of the adjacent groups of elastic bands in the vertical direction are staggered. After composite, the combined spacing of adjacent first elastic bands 110 is 2 mm. The first nonwoven fabric 1, the second nonwoven fabric 2, and the third nonwoven fabric 3 each have a basis weight of less than 6 grams per square meter.

[0070] A method for preparing a hygiene product, characterized by comprising the following steps:

[0071] S1, First layer of adhesive coating: The upper surfaces of the first nonwoven fabric 1 and the third nonwoven fabric 3, which have a basis weight of less than 6 g / m², are coated with adhesive.

[0072] S2, apply the first layer of elastic rubber. The first elastic rubber group 11 is sprayed with glue through the first elastic rubber group guide roller 51 of the composite device 5 and then adhered to the upper surface of the first nonwoven fabric 1. The second elastic rubber group 21 is sprayed with glue through the second elastic rubber group guide roller 52 and then adhered to the upper surface of the third nonwoven fabric 3. The projections of the two adjacent groups of elastic rubber in the vertical direction are staggered. The spacing between the two adjacent first elastic rubbers 110 in each group is 4mm.

[0073] S3, Non-woven fabric composite: The first non-woven fabric 1 with the first elastic elastic band group 11, the third non-woven fabric 3 with the second elastic elastic band group 21, and the second non-woven fabric 2 are pressed together by the first pressing roller group 54, so that the first elastic elastic band and the second elastic elastic band are interleaved and composited, so that the combination spacing of the first elastic elastic band 110 and the second elastic elastic band 310 is 2mm, and the misaligned composite lightweight elastic component 90 is obtained.

[0074] S4, Apply adhesive to the top layer 921 and the bottom layer 922, and apply adhesive to the upper surfaces of the top layer 921 and the bottom layer 922;

[0075] S6, pressing, combining the glued surface layer 921, bottom layer 922 with the misaligned composite lightweight elastic component 90 to form a laminated structure;

[0076] S6, Rolling: Rolling the laminated structure after pressing to make the laminated structure fit together better;

[0077] S7, Combination, combines the layered structure and the core to create sanitary products.

[0078] Example 3

[0079] Unlike Example 1,

[0080] like Figure 2 As shown, the staggered composite lightweight elastic component 90 includes a first nonwoven fabric 1, a second nonwoven fabric 2, and a third nonwoven fabric 3 stacked sequentially. A first elastic band group 11 is provided between the first nonwoven fabric 1 and the second nonwoven fabric 2, and a second elastic band group 21 is provided between the second nonwoven fabric 2 and the third nonwoven fabric 3. Both the first elastic band group 11 and the second elastic band group 21 are composed of an array of several first elastic bands 110. The spacing between two adjacent first elastic bands 110 in each group is 4.5 mm. The projections of adjacent groups of elastic bands in the vertical direction are staggered. After composite, the combined spacing of adjacent first elastic bands 110 is 2.25 mm. The first nonwoven fabric 1, the second nonwoven fabric 2, and the third nonwoven fabric 3 each have a basis weight of less than 6 grams per square meter.

[0081] A method for preparing a hygiene product, characterized by comprising the following steps:

[0082] S1, First layer of adhesive coating: The upper surfaces of the first nonwoven fabric 1 and the third nonwoven fabric 3, which have a basis weight of less than 6 g / m², are coated with adhesive.

[0083] S2, apply the first layer of elastic rubber. The first elastic rubber group 11 is sprayed with glue through the first elastic rubber group guide roller 51 of the composite device 5, and then adhered to the upper surface of the first nonwoven fabric 1. The second elastic rubber group 21 is sprayed with glue through the second elastic rubber group guide roller 52, and then adhered to the upper surface of the third nonwoven fabric 3. The projections of adjacent groups of elastic rubber in the vertical direction are staggered, and the spacing between two adjacent first elastic rubbers 110 in each group is 4.5mm.

[0084] S3, Non-woven fabric composite: The first non-woven fabric 1 with the first elastic elastic band group 11, the third non-woven fabric 3 with the second elastic elastic band group 21, and the second non-woven fabric 2 are pressed together by the first pressing roller group 54, so that the first elastic elastic band and the second elastic elastic band are interleaved and composited, so that the combination spacing of the first elastic elastic band 110 and the second elastic elastic band 310 is 2.25mm, and the misaligned composite lightweight elastic component 90 is obtained.

[0085] S4, Apply adhesive to the top layer 921 and the bottom layer 922, and apply adhesive to the upper surfaces of the top layer 921 and the bottom layer 922;

[0086] S6, pressing, combining the glued surface layer 921, bottom layer 922 with the misaligned composite lightweight elastic component 90 to form a laminated structure;

[0087] S6, Rolling: Rolling the laminated structure after pressing to make the laminated structure fit together better;

[0088] S7, Combination, combines the layered structure and the core to create sanitary products.

[0089] Example 4

[0090] Unlike Example 1, as Figure 1 As shown, the staggered composite lightweight elastic component 90 includes a first nonwoven fabric 1 and a second nonwoven fabric 2 stacked sequentially. The upper surface of the first nonwoven fabric 1 is provided with a first elastic band group 11, and the upper surface of the second nonwoven fabric 2 is provided with a second elastic band group 21. The first elastic band group 11 and the second elastic band group 21 are both composed of an array of several first elastic bands 110. The spacing between two adjacent first elastic bands 110 in each group is 4.9 mm. The projections of the adjacent elastic bands in the vertical direction are staggered. After composite, the combined spacing of adjacent first elastic bands 110 is 2.45 mm. The first nonwoven fabric and the second nonwoven fabric each have a basis weight of less than 6 g / m².

[0091] A method for preparing a hygiene product includes the following steps:

[0092] S1, First layer of adhesive coating: The upper surfaces of the first nonwoven fabric 1 and the second nonwoven fabric 2, which have a basis weight of less than 6 g / m², are coated with adhesive.

[0093] S2, apply the first layer of elastic rubber. The first elastic rubber group 11 is sprayed with glue through the first elastic rubber group guide roller 51 of the composite device 5, and then adhered to the upper surface of the first nonwoven fabric 1. The second elastic rubber group 21 is sprayed with glue through the second elastic rubber group guide roller 52, and then adhered to the upper surface of the second nonwoven fabric 2. The projections of the two adjacent groups of elastic rubber in the vertical direction are staggered, and the spacing between the two adjacent first elastic rubbers 110 in each group is 4.9mm.

[0094] S3, Non-woven fabric composite: The first non-woven fabric 1 with the first elastic elastic band group 11 and the second non-woven fabric 2 with the second elastic elastic band group 21 are pressed together by the first pressing roller group 54, so that the first elastic elastic band and the second elastic elastic band are interleaved and composited, so that the combination spacing of the first elastic elastic band 110 and the second elastic elastic band 310 is 2.45mm, and the misaligned composite lightweight elastic component 90 is obtained.

[0095] S4, Apply adhesive to the top layer 921 and the bottom layer 922, and apply adhesive to the upper surfaces of the top layer 921 and the bottom layer 922;

[0096] S5, pressing, combining the glued surface layer 921, bottom layer 922 with the misaligned composite lightweight elastic component 90 to form a laminated structure;

[0097] S6, Rolling: Rolling the laminated structure after pressing to make the laminated structure fit together better;

[0098] S7, Combination, combines the layered structure and the core to create sanitary products.

[0099] like Figure 3 As shown, the composite device 5 includes a first elastic elastic band guide roller 51, a first elastic band breakage alarm mechanism 56, a second elastic elastic band guide roller 52, a second elastic band breakage alarm mechanism 57, a first pressing roller group 54, and a second pressing roller group 55. The first elastic elastic band guide roller 51 and the second elastic elastic band guide roller 52 are located above the first pressing roller group 54, and are symmetrically arranged on the left and right sides. The first elastic band breakage alarm mechanism 56 is located to the left of the first elastic elastic band guide roller 51, and the second elastic band breakage alarm mechanism 57 is located to the left of the first elastic elastic band guide roller 54. On the right side of the second elastic rubber band guide roller 52, the second pressing roller group 55 is located below the first pressing roller group 54. Both the first elastic rubber band guide roller 51 and the second elastic rubber band guide roller 52 include a roller body 511. The roller body 511 has a plurality of partitions 512 arranged in a circumferential direction. An elastic band receiving cavity 513 is formed between two adjacent partitions 512. The elastic band receiving cavities 513 on the first elastic rubber band guide roller 51 and the elastic band receiving cavities 513 on the second elastic rubber band guide roller 52 are staggered. Both the first pressing roller group 54 and the second pressing roller group 55 include two rotating rollers 541 arranged in parallel to each other.

[0100] like Figure 4-11As shown, both the first elastic band breakage alarm mechanism 56 and the second elastic band breakage alarm mechanism 57 include a C-shaped fixing frame 581, an upper guide ring 582, a lower guide ring 583, a tensioning roller 584, a fixed shaft 585, a magnet 586, a Hall sensor 587, a tensioning electric push rod 588, and a pressure sensor 560. The upper guide ring 582 is located above the C-shaped fixing frame 581, and the lower guide ring 583 is located below the C-shaped fixing frame 581. A support plate 589 is provided in the middle of the C-shaped fixing frame 581, and the fixed shaft 585 is located on the side wall of the support plate 589. The tensioning roller 584 is rotatably fixed to the fixed shaft 585 by a bearing. A horizontal plate 580 is vertically fixed at the starting end of the support plate 589. The tensioning electric push rod 588 is fixed to the C-shaped fixing frame 581. The end is fixedly connected to the horizontal plate 580. The magnet 586 is fixed on the side wall of the tension roller 584 near the support plate 589. The Hall sensor 587 is fixed on the support plate 589 and cooperates with the magnet 586. The pressure sensor 560 is located between the bearing and the inner side wall of the tension roller 584. The tension roller 584 includes a roller body 571. An elastic rubber receiving cavity 572 is formed in the middle of the roller body. The elastic rubber receiving cavity 572 has a plurality of protrusions 573 arranged in a circumferential direction. The elastic rubber receiving cavity 572 has a groove 574 that cooperates with the protrusions 573. The groove 574 has a hook and loop fastener surface. The bottom of the protrusion 573 has a hook and loop fastener surface that cooperates with the hook and loop fastener surface. The upper guide ring 582 and the lower guide ring 583 are made of ceramic material.

[0101] Working principle: such as Figure 1-13As shown, in the first layer of adhesive coating, the upper surfaces of the first nonwoven fabric 1 and the second nonwoven fabric 2, with a basis weight of less than 6 g / m², are coated with adhesive using a glue spray gun. Simultaneously, the elastic elastics of each of the first elastic elastic bands are guided by the elastic rubber receiving cavity 572 of the first elastic elastic band guide roller 51 to the corresponding glue spray gun for spraying, and then adhered to the upper surface of the first nonwoven fabric 1. At the same time, the second elastic elastic band group 21 is sprayed with adhesive through the second elastic elastic band guide roller 52 and then adhered to the upper surface of the second nonwoven fabric 2. The projections of adjacent groups of elastic elastics in the vertical direction are staggered. The first nonwoven fabric 1 with the first elastic elastic band group 11 adhered to it and the second elastic elastic band group 21 adhered to it are... The second nonwoven fabric 2 of the elastic band group 21 is pressed by the first pressing roller group 54, so that the first elastic band and the second elastic band are interlaced and compounded, and the combination spacing of the first elastic band 110 and the second elastic band 310 is 2.45mm, resulting in a staggered composite lightweight elastic component 90. The upper surfaces of the surface layer 921 and the bottom layer 922 are coated with adhesive, and the coated surface layer 921, bottom layer 922 and staggered composite lightweight elastic component 90 are compounded to form a laminated structure. The pressed laminated structure is rolled to make the laminated structure fit better, and the laminated structure and the core are combined to produce a sanitary product.

[0102] In use, the elastic band passes through the upper guide ring 582, around the tensioning roller 584, and then through the lower guide ring 583 below the tensioning roller 584. During operation, the pressure sensor 560 detects the pressure, thereby controlling the extension and retraction of the tensioning electric push rod 588, which in turn pushes the tensioning roller 584 to move, thus tensioning the elastic band. The tensioned elastic band moves, driving the tensioning roller 584 to rotate. The magnet 586 on the tensioning roller 584, in conjunction with the sensor 9, enables real-time detection. When the elastic band breaks, the tensioning roller 584 will not move, and the sensor 560 will not detect the magnet 586, thus providing feedback on the broken wire. The controller then activates the alarm light to prevent mass accidents from occurring.

[0103] Example 5

[0104] Unlike Example 4,

[0105] like Figure 1As shown, the staggered composite lightweight elastic component 90 includes a first nonwoven fabric 1 and a second nonwoven fabric 2 stacked sequentially. The upper surface of the first nonwoven fabric 1 is provided with a first elastic band group 11, and the upper surface of the second nonwoven fabric 2 is provided with a second elastic band group 21. The first elastic band group 11 and the second elastic band group 21 are both composed of an array of several first elastic bands 110. The spacing between two adjacent first elastic bands 110 in each group is 4mm. The projections of the two adjacent groups of elastic bands in the vertical direction are staggered. After composite, the combined spacing of adjacent first elastic bands 110 is 2mm. The first nonwoven fabric and the second nonwoven fabric each have a basis weight of less than 6 grams per square meter.

[0106] A method for preparing a hygiene product includes the following steps:

[0107] S1, First layer of adhesive coating: The upper surfaces of the first nonwoven fabric 1 and the second nonwoven fabric 2, which have a basis weight of less than 6 g / m², are coated with adhesive.

[0108] S2, apply the first layer of elastic rubber. The first elastic rubber group 11 is sprayed with glue through the first elastic rubber group guide roller 51 of the composite device 5 and then adhered to the upper surface of the first non-woven fabric 1. The second elastic rubber group 21 is sprayed with glue through the second elastic rubber group guide roller 52 and then adhered to the upper surface of the second non-woven fabric 2. The projections of the two adjacent groups of elastic rubber in the vertical direction are staggered. The spacing between the two adjacent first elastic rubbers 110 in each group is 4mm.

[0109] S3, Non-woven fabric composite, the first non-woven fabric 1 with the first elastic elastic band group 11 and the second non-woven fabric 2 with the second elastic elastic band group 21 are pressed together by the first pressing roller group 54, so that the first elastic elastic band and the second elastic elastic band are interleaved and composited, and the combination spacing of the first elastic elastic band 110 and the second elastic elastic band 310 is 2mm.

[0110] S4, Knitted fabric coating: Apply adhesive to the upper surface of the knitted fabric 30 to obtain the misaligned composite lightweight elastic component 90.

[0111] S4, Apply adhesive to the top layer 921 and the bottom layer 922, and apply adhesive to the upper surfaces of the top layer 921 and the bottom layer 922;

[0112] S5, pressing, combining the glued surface layer 921, bottom layer 922 with the misaligned composite lightweight elastic component 90 to form a laminated structure;

[0113] S6, Rolling: Rolling the laminated structure after pressing to make the laminated structure fit together better;

[0114] S7, Combination, combines the layered structure and the core to create sanitary products.

[0115] Example 6

[0116] Unlike Example 4,

[0117] like Figure 1 As shown, the staggered composite lightweight elastic component 90 includes a first nonwoven fabric 1 and a second nonwoven fabric 2 stacked sequentially. The upper surface of the first nonwoven fabric 1 is provided with a first elastic band group 11, and the upper surface of the second nonwoven fabric 2 is provided with a second elastic band group 21. The first elastic band group 11 and the second elastic band group 21 are both composed of an array of several first elastic bands 110. The spacing between two adjacent first elastic bands 110 in each group is 4.5 mm. The projections of the adjacent elastic bands in the vertical direction are staggered. After composite, the combined spacing of adjacent first elastic bands 110 is 2.25 mm. The first nonwoven fabric and the second nonwoven fabric each have a basis weight of less than 6 g / m².

[0118] A method for preparing a hygiene product includes the following steps:

[0119] S1, First layer of adhesive coating: The upper surfaces of the first nonwoven fabric 1 and the second nonwoven fabric 2, which have a basis weight of less than 6 g / m², are coated with adhesive.

[0120] S2, apply the first layer of elastic rubber. The first elastic rubber group 11 is sprayed with glue through the first elastic rubber group guide roller 51 of the composite device 5, and then adhered to the upper surface of the first nonwoven fabric 1. The second elastic rubber group 21 is sprayed with glue through the second elastic rubber group guide roller 52, and then adhered to the upper surface of the second nonwoven fabric 2. The projections of adjacent groups of elastic rubber in the vertical direction are staggered, and the spacing between two adjacent first elastic rubbers 110 in each group is 4.5mm.

[0121] S3, Non-woven fabric composite: The first non-woven fabric 1 with the first elastic elastic band group 11 and the second non-woven fabric 2 with the second elastic elastic band group 21 are pressed together by the first pressing roller group 54, so that the first elastic elastic band and the second elastic elastic band are interleaved and composited, so that the combination spacing of the first elastic elastic band 110 and the second elastic elastic band 310 is 2.25mm, and the misaligned composite lightweight elastic component 90 is obtained.

[0122] S4, Apply adhesive to the top layer 921 and the bottom layer 922, and apply adhesive to the upper surfaces of the top layer 921 and the bottom layer 922;

[0123] S5, pressing, combining the glued surface layer 921, bottom layer 922 with the misaligned composite lightweight elastic component 90 to form a laminated structure;

[0124] S6, Rolling: Rolling the laminated structure after pressing to make the laminated structure fit together better;

[0125] S7, Combination, combines the layered structure and the core to create sanitary products.

Claims

1. A hygiene product, characterized in that, It includes a front waist section (91), a rear waist section (92) and a core layer (94). The rear waist section (92) is provided at the end of the front waist section (91), and the core layer (94) is provided between the front waist section (91) and the rear waist section (92). Both the front waist section (91) and the rear waist section (92) include a surface layer (921), a bottom layer (922) and a staggered composite lightweight elastic component (90) provided between the two layers.

2. The sanitary product according to claim 1, characterized in that, The staggered composite lightweight elastic component (90) includes a first nonwoven fabric (1), a second nonwoven fabric (2), and a third nonwoven fabric (3) stacked sequentially. A first elastic band group (11) is provided between the first nonwoven fabric (1) and the second nonwoven fabric (2), and a second elastic band group (21) is provided between the second nonwoven fabric (2) and the third nonwoven fabric (3). The first elastic band group (11) and the second elastic band group (21) are both composed of an array of several first elastic bands (110). The spacing between two adjacent first elastic bands (110) in each group is 4~4.9mm. The projections of the two adjacent groups of elastic bands in the vertical direction are staggered. After the composite, the combined spacing of the adjacent first elastic bands (110) is 2~2.45mm. The first nonwoven fabric (1), the second nonwoven fabric (2), and the third nonwoven fabric (3) each have a basis weight of less than 6 grams per square meter.

3. The sanitary product according to claim 1, characterized in that, The staggered composite lightweight elastic component (90) includes a first nonwoven fabric (1) and a second nonwoven fabric (2) stacked sequentially. The upper surface of the first nonwoven fabric (1) is provided with a first elastic band group (11), and the upper surface of the second nonwoven fabric (2) is provided with a second elastic band group (21). The first elastic band group (11) and the second elastic band group (21) are both composed of an array of several first elastic bands (110). The spacing between two adjacent first elastic bands (110) in each group is 4~4.9mm. The projections of the two adjacent groups of elastic bands in the vertical direction are staggered. After the composite, the combined spacing of the adjacent first elastic bands (110) is 2~2.45mm. The first nonwoven fabric (1) and the second nonwoven fabric (2) each have a basis weight of less than 6 grams per square meter.

4. A composite device for a hygiene product, characterized in that, The misaligned composite lightweight elastic component (90) is the misaligned composite lightweight elastic component (90) according to any one of claims 1-3. The composite device (5) includes a first elastic rubber band guide roller (51), a first elastic rubber band breakage alarm mechanism (56), a second elastic rubber band guide roller (52), a second elastic rubber band breakage alarm mechanism (57), a first pressing roller group (54), a second pressing roller group (55), and an intermediate layer guide roller (540). The first elastic rubber band guide roller (51) and the second elastic rubber band guide roller (52) are located at... Above the first pressing roller group (54), the first elastic rubber band guide roller (51) and the second elastic rubber band guide roller (52) are symmetrically arranged on the left and right sides. The first elastic rubber band breakage alarm mechanism (56) is located on the left side of the first elastic rubber band guide roller (51), the second elastic rubber band breakage alarm mechanism (57) is located on the right side of the second elastic rubber band guide roller (52), the second pressing roller group (55) is located below the first pressing roller group (54), and the intermediate layer guide roller (540) is located above the first pressing roller group (54).

5. The composite device for a hygiene product according to claim 4, characterized in that, Both the first rubber band breakage alarm mechanism (56) and the second rubber band breakage alarm mechanism (57) include a C-shaped fixing frame (581), an upper guide ring (582), a lower guide ring (583), a tensioning roller (584), a fixed shaft (585), a magnet (586), a Hall sensor (587), a tensioning electric push rod (588), and a pressure sensor (560). The upper guide ring (582) is located above the C-shaped fixing frame (581), and the lower guide ring (583) is located below the C-shaped fixing frame (581). A support plate (589) is provided in the middle of the C-shaped fixing frame (581), and the fixed shaft (585) is located on the support plate (589). On the side wall, the tensioning roller (584) is rotatably fixed on the fixed shaft (585) by bearings. The starting end of the support plate (589) is vertically fixed with a horizontal plate (580). The tensioning electric push rod (588) is fixed on the C-shaped fixed frame (581). The push rod end of the tensioning electric push rod (588) is fixedly connected to the horizontal plate (580). The magnet (586) is fixed on the side wall of the tensioning roller (584) near the support plate (589). The Hall sensor (587) is fixed on the support plate (589) and cooperates with the magnet (586). The pressure sensor (560) is located between the bearing and the inner side wall of the tensioning roller (584).

6. The composite device for a sanitary product according to claim 5, characterized in that, The tensioning roller (584) includes a roller body (571), and an elastic rubber receiving cavity (572) is formed in the middle of the roller body. The elastic rubber receiving cavity (572) has a plurality of protrusions (573) arranged in a circumferential direction. The elastic rubber receiving cavity (572) is provided with a groove (574) that cooperates with the protrusions (573). The groove (574) is provided with a hook and loop fastener. The bottom of the protrusion (573) is provided with a hook and loop fastener surface that cooperates with the hook and loop fastener surface.

7. The composite device for a sanitary product according to claim 4, characterized in that, The first elastic rubber band guide roller (51) and the second elastic rubber band guide roller (52) both include a roller body (511). The roller body (511) has a plurality of partitions (512) arranged in a circumferential direction. An elastic band receiving cavity (513) is formed between two adjacent partitions (512). The elastic band receiving cavities (513) on the first elastic rubber band guide roller (51) and the elastic band receiving cavities (513) on the second elastic rubber band guide roller (52) are staggered. The first pressing roller group (54) and the second pressing roller group (55) both include two rotating rollers (541) arranged in parallel left and right.

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