WO2023184987A1 - 一种柔软干爽双层复合材料及其制备装置、方法和卫生用品 - Google Patents

一种柔软干爽双层复合材料及其制备装置、方法和卫生用品 Download PDF

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WO2023184987A1
WO2023184987A1 PCT/CN2022/131132 CN2022131132W WO2023184987A1 WO 2023184987 A1 WO2023184987 A1 WO 2023184987A1 CN 2022131132 W CN2022131132 W CN 2022131132W WO 2023184987 A1 WO2023184987 A1 WO 2023184987A1
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Prior art keywords
layer
roller
surface layer
soft
composite material
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PCT/CN2022/131132
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English (en)
French (fr)
Inventor
郝学恩
翟敏
陶强强
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江苏锦琪昶新材料有限公司
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Publication of WO2023184987A1 publication Critical patent/WO2023184987A1/zh

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    • A61F13/00—Bandages or dressings; Absorbent pads
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    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/51121—Topsheet, i.e. the permeable cover or layer facing the skin characterised by the material
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Definitions

  • the invention belongs to the technical field of double-layer composite materials, and specifically relates to a soft and dry double-layer composite material, its preparation device, method and sanitary products.
  • Absorbent sanitary products are people's daily necessities, including sanitary napkins, diapers, pull-ups, adult diapers, adult pull-ups, mild incontinence products, breast pads and absorbent pads, etc., which bring great convenience to people's lives. .
  • sanitary napkins Take sanitary napkins as an example.
  • the current market penetration rate of sanitary napkins in China is basically 100%, which means that every consumer who has menstruation is already using sanitary napkins.
  • the market penetration of baby diapers and pull-up pants The market penetration rate has basically reached around 80%, and the market penetration rate will continue to increase in the next few years.
  • the fluffiness of the fabric will be reduced.
  • the fabric absorbs liquid the small gaps will slow down the penetration rate of liquid into the fabric and increase the concentration of liquid in the fabric. Storage, thereby increasing the liquid holding capacity and liquid retention rate of the surface layer, further affecting the moisture and back-infiltration of the fabric, affecting the dryness of the fabric and the comfort experience of consumers;
  • Weak affinity treatment will cause fiber and fabric
  • the hydrophilicity is reduced, and the time for the liquid to penetrate the fabric will be lengthened.
  • a situation similar to the lotus leaf effect will occur.
  • the liquid cannot penetrate, causing slippage and side leakage problems, which will affect the function of the absorbent product and the use of consumers.
  • leakage problems can also cause a lot of trouble to consumers, such as soiling underwear or sheets.
  • a single fabric using a simple mixture and ratio adjustment of coarse denier fibers and fine denier fibers can only improve dryness and comfort to a limited extent, but it cannot significantly improve and resolve the contradiction and balance between the two.
  • the purpose of the present invention is to provide a soft and dry double-layer composite material and its preparation device, method and sanitary products, while ensuring that the fabric is dry, soft and skin-friendly.
  • a soft and dry double-layer composite material includes a bottom layer and a surface layer arranged on the upper part of the bottom layer.
  • the surface layer has an upper surface and a lower surface.
  • the surface layer is provided with openings penetrating the surface layer.
  • the bottom layer is provided with a first protrusion protruding upward. The first protruding part penetrates through the opening, the top surface of the first protruding part exceeds the plane where the upper surface of the surface layer is located, and the fiber fineness of the bottom material is smaller than that of the surface material.
  • the hydrophilicity of the aforementioned bottom layer material is weaker than that of the surface layer material.
  • the aforementioned surface layer is provided with a second protruding portion, and the opening is located on the top surface of the second protruding portion.
  • the side wall of the first protruding portion located in the second protruding portion and the inner wall of the second protruding portion are fully, partially, or not in contact with each other to form a cavity.
  • a second protrusion is provided on the surface layer, the opening is located on a surface other than the second protrusion, and the top surface of the second protrusion is lower than the top surface of the first protrusion.
  • At least part of the area between the upper surface of the bottom layer and the lower surface of the surface layer is adhesively connected and fixed.
  • the first protruding portion is provided with a bottom layer hole penetrating the bottom layer.
  • the second protruding portion is provided with surface holes penetrating the surface layer
  • the joint between the bottom layer and the surface layer is provided with a first through hole and a second through hole respectively, which penetrate the bottom layer and the surface layer.
  • the first through hole and the second through hole are connected, and the first through hole and the second through hole are connected to each other.
  • the size of the through holes may be the same or different.
  • the invention also provides a preparation device for soft and dry double-layer composite materials, including a first roller, a second roller, a concave roller and a bonding mechanism;
  • a plurality of first opening members for opening holes are provided on the roller surface of the first roller;
  • the concave roller cooperates with the first roller, and a plurality of second hole parts are arranged on the roller surface to cooperate with the first hole parts.
  • the second hole parts cooperate with the first hole parts to form a surface on the surface. A number of openings penetrating the surface;
  • the second roller cooperates with the concave roller, and its roller surface is provided with a plurality of first bosses for pressing the first protrusions on the bottom layer.
  • the concave roller is provided with a plurality of first bosses on its roller surface.
  • the matching first groove, the first groove and the first boss cooperate to form a plurality of first protrusions on the bottom layer that penetrate the surface layer holes;
  • the adhesive mechanism is used to adhesively connect the contact points between the upper surface of the base layer and the lower surface of the surface layer.
  • the roller surface of the aforementioned first roller is provided with a plurality of second bosses for pressing the second protrusions on the surface layer
  • the roller surface of the concave roller is provided with a plurality of second bosses that match the second bosses.
  • the second groove, the second groove and the second boss cooperate to form a plurality of second protrusions on the surface layer.
  • the invention also provides a method for preparing a soft and dry double-layer composite material, and a device for preparing the aforementioned soft and dry double-layer composite material;
  • the present invention also provides another method for preparing a soft and dry double-layer composite material, and provides a device for preparing the aforementioned soft and dry double-layer composite material;
  • the invention also provides a sanitary product, which contains the aforementioned soft and dry double-layer composite material.
  • the aforementioned sanitary products include sanitary napkins, sanitary pads, menstrual pants, light incontinence products, diapers, pull-up pants, nursing pads, maternity pads or breast pads.
  • the double-layer composite material of the present invention combines coarse denier fiber materials and fine denier fiber materials, and the height of the coarse denier fiber material is lower than the fine denier fiber material, so that the fine denier fiber material contacts the user's skin, thereby providing better user experience. It maximizes the soft and comfortable experience, avoids the contact of coarse-denier fiber materials with the user's skin, and solves the problem of softness and skin-friendlyness of coarse-denier fabrics. At the same time, the dryness of coarse-denier fabrics also solves the problem of dryness of fine-denier fiber materials. sexual issues, thereby improving the dryness of the fabric while ensuring a soft and comfortable experience.
  • Figure 1 is a schematic structural diagram of a double-layer composite material according to an embodiment of the present invention.
  • Figure 2 is a cross-sectional structural view at A-A in Figure 1;
  • Figure 3 is a schematic structural diagram of a double-layer composite material according to another embodiment of the present invention.
  • Figure 4 is a cross-sectional structural view at B-B in Figure 3;
  • Figure 5 is a schematic structural diagram of a double-layer composite material according to another embodiment of the present invention.
  • Figure 6 is a cross-sectional structural view at C-C in Figure 5;
  • Figure 7 is a schematic structural diagram of a double-layer composite material according to another embodiment of the present invention.
  • Figure 8 is a cross-sectional structural view at D-D in Figure 7;
  • Figure 9 is a schematic structural diagram of a double-layer composite material according to another embodiment of the present invention.
  • Figure 10 is a cross-sectional structural view taken at E-E in Figure 9;
  • Figure 11 is a schematic structural diagram of a double-layer composite material preparation device according to an embodiment of the present invention.
  • Figure 12 is a schematic structural diagram of a double-layer composite material preparation device according to another embodiment of the present invention.
  • Figure 13 is a schematic structural diagram of a double-layer composite material according to another embodiment of the present invention.
  • Figure 14 is a schematic structural diagram of a double-layer composite material according to another embodiment of the present invention.
  • Figure 15 is a schematic structural diagram of a double-layer composite material according to another embodiment of the present invention.
  • Bottom layer 1.1, first raised part, 1.2, small hole in the bottom layer, 1.3, first through hole 2.
  • a soft and dry double-layer composite material of the present invention includes a bottom layer 1 and a surface layer 2 arranged on the upper part of the bottom layer 1.
  • the surface layer 2 is provided with a number of openings 2.1 penetrating the surface layer 2.
  • the bottom layer 1 is provided with A plurality of upwardly protruding first protrusions 1.1 correspond to the openings 2.1, and the first protrusions 1.1 penetrate the openings 2.1. The contact between the upper surface of the bottom layer 1 and the lower surface of the surface layer 2 is adhered.
  • the upper surface of the first protruding part 1.1 is higher than the upper surface of the surface layer 2
  • the bottom layer 1 is made of fine-denier fiber
  • the surface layer 2 is made of coarse-denier fiber
  • the hydrophilicity of the bottom layer 1 is weaker than that of the surface layer 2 .
  • the non-woven fabric mainly used in the surface layer 2 has a larger fiber fineness, so it can show better water permeability and breathability, and can also have better water retention properties, effectively controlling the return of water. Penetration; the bottom layer 1 fabric has smaller fiber fineness, and after it bulges through the openings of the surface layer 2, it directly contacts the skin. Due to its smaller fiber fineness and weak hydrophilicity, it makes It shows better skin-friendly, soft and dry properties when used.
  • the bonding part between the surface layer 2 and the bottom layer 1 can be the bonding between the non-opened area of the surface layer 2 and the plane of the non-protruding area of the bottom layer 1; the bonding point can be the entire contact area or part of it. contact area.
  • the bottom layer 1 is made of hot-air non-woven fabric made of 24 g/m2 1.0 denier weak affinity fiber
  • the surface layer 2 is made of 20 g/m2 hot-air non-woven fabric made of 2.5 denier strong affinity fiber.
  • the first convex part 1.1 on the bottom layer 1 is The height is 1.2 mm, the diameter of the first raised part 1.1 is 6 mm, the first raised part 1.1 is provided with a bottom hole 1.2, the diameter of the bottom hole 1.2 is 1 mm; the diameter of the opening 2.1 on the surface layer 2 is 7 mm.
  • the surface layer 2 and the bottom layer 1 are both made of hot-air non-woven fabrics.
  • the upper surface of the bottom layer 1 has a delicate touch and finer fibers than the upper surface of the surface layer 2.
  • the bottom layer 1 uses a pure cotton surface layer, and the surface layer 2 uses a two-component hot-air surface layer.
  • the colors of surface layer 2 and bottom layer 1 are different. For example, bottom layer 1 is white and surface layer 2 is light green.
  • the upper surface of the bottom layer 1 and the lower surface of the surface layer 2 are bonded using one of heat sealing, glue or ultrasonic bonding.
  • a soft and dry double-layer composite material preparation device including a first roller 3, a second roller 4, a concave roller 5 and a bonding mechanism 6; the roller surface of the first roller 3 There are a plurality of first opening parts 3.1 for opening the openings 2.1; the concave roller 5 cooperates with the first roller 3, and a plurality of second opening parts matching with the first opening parts are provided on the roller surface.
  • the hole piece 5.1, the second hole piece 5.1 and the first hole piece 3.1 cooperate to form a number of openings 2.1 penetrating the surface layer 2 on the surface layer 2; the second roller 4 cooperates with the concave roller 5, and the roller surface is provided with There are a plurality of first bosses 4.1 used to press out the first protrusions 1.1 on the bottom layer 1, and a plurality of first grooves 5.2 matching the first bosses 4.1 are provided on the roller surface of the concave roller 5, The first groove 5.2 and the first boss 4.1 cooperate to form a plurality of first protrusions 1.1 on the bottom layer 1 that penetrate the openings 2.1 of the surface layer 2; the bonding mechanism 6 is used to connect the upper surface of the bottom layer 1 and the lower surface of the surface layer 2 The contacts are bonded together.
  • the preparation method of the soft and dry double-layer composite material includes the following specific steps:
  • a soft and dry double-layer composite material of the present invention includes a bottom layer 1 and a surface layer 2 arranged on the upper part of the bottom layer 1.
  • the surface layer 2 is provided with a number of upwardly protruding second protrusions 2.2.
  • the surface layer 2 There are a number of openings 2.1 penetrating the surface layer 2, and the bottom layer 1 is provided with a number of upwardly protruding first protrusions 1.1.
  • the first protrusions 1.1 correspond to the openings 2.1, and the first protrusions 1.1 penetrate through the openings 2.1.
  • the hole 2.1, the outer side of the opening 2.1 and the lower surface of the surface layer 2 are bonded together.
  • the height of the top surface of the second raised part 2.2 is higher than the height of the top surface of the first raised part 1.1, so that the second raised part 2.2 is in direct contact with the skin.
  • the material of the surface layer 2 is made of fine denier weakly biophilic fiber.
  • Non-woven fabric; at the same time, the bottom layer 1 is made of coarse denier fabric; when the second convex portion 1.1 of the surface layer 2 comes into contact with the skin, it has a dry and soft effect, and the first convex portion 1.1 formed on the bottom layer 2 has a more It has the advantages of good anti-seepage and water retention. When it forms a raised cavity, it makes the overall water retention performance of the fabric better and improves the fluffiness of the fabric.
  • the surface layer 2 is made of 23gsm menstrual blood desalination non-woven fabric
  • the bottom layer 1 is made of 20gsm hot air multiple times hydrophilic non-woven fabric.
  • the diameter of the opening 2.1 is 7 mm.
  • the height of the upper surface of the first raised part 1.1 is lower than the upper surface of the second raised part 2.2.
  • the surface layer 2 is made of fine denier fibers, and the bottom layer 1 is made of coarse denier fibers.
  • the hydrophilicity of the surface layer 2 is weak.
  • the surface layer 2 is made of hot-air non-woven fabric made of 22 g/m2 0.8 denier weakly biophilic antibacterial fiber.
  • the bottom layer 1 is made of 22g/m2 hot-air non-woven fabric made of 3.0 denier light green strong affinity fiber.
  • the second raised part 2.2 on the surface layer 2 The height is 1.5 mm and the diameter is 6 mm; the height of the first raised portion 1.1 of the bottom layer 1 is 0.8 mm, see Figures 3 and 4.
  • the upper surface of the first raised part 1.1 is higher than the upper surface of the second raised part 2.2.
  • the fabric materials of the bottom layer 1 and the surface layer 2 are opposite to those in Figures 3 and 4.
  • the bottom layer 1 is made of fine fiber.
  • the surface layer 2 is made of coarse fiber, and the bottom layer 1 is less hydrophilic than the surface layer 2.
  • the bottom layer 1 is made of pure cotton spunlace non-woven fabric made of 30 g/m2 pure cotton fiber
  • the surface layer 2 is made of hot-air non-woven fabric made of 22 g/m2 2.0 denier fiber; the height of the first raised part 1.1 on the bottom layer 1 is 1.3 mm, and the diameter is 6 mm; the height of the second protrusion 2.2 of the surface layer 2 is 0.6 mm, and the diameter is 6 mm.
  • the shape and size of the opening 2.1, the first protruding portion 1.1 and the second protruding portion 2.2 can be changed as needed.
  • a soft and dry double-layer composite material preparation device including a first roller 3, a second roller 4, a concave roller 5 and a bonding mechanism 6; the roller surface of the first roller 3 There are a plurality of first opening parts 3.1 for opening the openings 2.1; the concave roller 5 cooperates with the first roller 3, and a plurality of second opening parts matching with the first opening parts are provided on the roller surface.
  • the hole piece 5.1, the second hole piece 5.1 and the first hole piece 3.1 cooperate to form a number of openings 2.1 penetrating the surface layer 2 on the surface layer 2; the second roller 4 cooperates with the concave roller 5, and the roller surface is provided with There are a plurality of first bosses 4.1 used to press out the first protrusions 1.1 on the bottom layer 1, and a plurality of first grooves 5.2 matching the first bosses 4.1 are provided on the roller surface of the concave roller 5, The first groove 5.2 and the first boss 4.1 cooperate to form a plurality of first protrusions 1.1 on the bottom layer 1 that penetrate the openings 2.1 of the surface layer 2; the bonding mechanism 6 is used to connect the upper surface of the bottom layer 1 and the lower surface of the surface layer 2 The contacts are bonded together.
  • the roller surface of the first roller 3 is provided with a plurality of second bosses 3.2 for pressing the second protrusions 2.2 on the surface layer 2.
  • the roller surface of the concave roller 5 is provided with a plurality of second bosses 3.2.
  • the matching second groove 5.3, the second groove 5.3 and the second boss 3.2 cooperate to form a plurality of second protrusions 2.2 on the surface layer 2.
  • the preparation method of the soft and dry double-layer composite material includes the following specific steps:
  • a soft and dry double-layer composite material of the present invention includes a bottom layer 1 and a surface layer 2 arranged on the upper part of the bottom layer 1.
  • the surface layer 2 is provided with a number of upwardly protruding second protrusions 2.2.
  • the second protruding part 2.2 is provided with an opening 2.1 penetrating the second protruding part 2.2 of the surface layer 2.
  • the bottom layer 1 is provided with a number of upwardly protruding first protruding parts 1.1.
  • the first protruding parts 1.1 are opposite to the openings 2.1.
  • the first protrusion 1.1 penetrates the opening 2.1, and the outside of the opening 2.1 and the lower surface of the surface layer 2 are adhesively connected together.
  • the height of the upper surface of the first protrusion 1.1 is higher than the upper surface of the surface layer 2.
  • the bottom layer 1 is made of fine-denier fibers, and the surface layer 2 is made of coarse-denier fibers.
  • the hydrophilicity of the bottom layer 1 is weaker than that of the surface layer 2.
  • the side walls of the first protruding part 1.1 are bent, and at least part of the area is in contact with the inner wall of the second protruding part 2.2.
  • the purpose is to maintain the overall three-dimensional effect of the fabric. More preferably, all the side walls of the first protruding part 1.1 located inside the second protruding part 2.2 are adhered to and adhered to the inner wall of the second protruding part 2.2.
  • the shape of the lower surface outside the opening 2.1 of the second raised part 2.2 corresponds to the shape of the upper surface of the lower part of the first raised part 1.1, and they are adhesively connected together.
  • the length of the upper half is smaller than the length of its lower half, see Figures 7 and 8.
  • the side wall of the first raised part 1.1 is not bent, and a cavity is formed between the side wall of the first raised part 1.1 and the inner wall of the second raised part 2.2.
  • the formed cavity can be used to improve the fabric.
  • a device for preparing soft and dry double-layer composite materials including a first roller 3, a second roller 4, a concave roller 5 and a bonding mechanism 6;
  • the roller surface of the first roller 3 is provided with multiple A first opening part 3.1 for opening the opening 2.1;
  • the concave roller 5 cooperates with the first roller 3, and a plurality of second punching parts 5.1 matching the first opening part 3.1 are provided on the roller surface , the second punching member 5.1 and the first opening member 3.1 cooperate to form a number of openings 2.1 penetrating the surface layer 2 on the surface layer 2;
  • the second roller 4 cooperates with the concave roller 5, and a plurality of holes are provided on the roller surface.
  • the first boss 4.1 is used to press out the first boss 1.1 on the bottom layer 1.
  • the roller surface of the concave roller 5 is provided with a plurality of first grooves 5.2 that match the first boss 4.1.
  • the groove 5.2 and the first boss 4.1 cooperate to form a number of first protrusions 1.1 on the bottom layer 1 that penetrate the openings 2.1 of the surface layer 2;
  • the bonding mechanism 6 is used to connect the upper surface of the bottom layer 1 and the lower surface of the surface layer 2 at the contact point Glued together.
  • the roller surface of the first roller 3 is provided with a plurality of second bosses 3.2 for pressing the second protrusions 2.2 on the surface layer 2.
  • the roller surface of the concave roller 5 is provided with a plurality of second bosses 3.2.
  • the matching second groove 5.3, the second groove 5.3 and the second boss 3.2 cooperate to form a plurality of second protrusions 2.2 on the surface layer 2.
  • the preparation method of the soft and dry double-layer composite material includes the following specific steps:
  • the double-layer composite fabric of this patent can also have small holes in the bottom layer and the surface layer.
  • small holes 1.2 in the bottom layer are provided on the first raised part 1.1; Make holes in the surface layer, as shown in Figure 14, and set surface holes 2.3 on the second raised part 2.2; at the same time, you can also set through holes on the bottom layer 1 and the surface layer 2, as shown in Figure 15, the bottom layer 1
  • the first through hole 1.3 and the second through hole 2.4 that penetrate the bottom layer 1 and the surface layer 2 are respectively provided at the joint points with the surface layer 2.
  • the first through hole 1.3 and the second through hole 2.4 are connected, and the first through hole 1.3 and the second through hole 2.4 are connected.
  • the size of the hole 1.3 and the second through hole 2.4 is the same or different.

Abstract

一种柔软干爽双层复合材料，包括底层（1）和设置于底层（1）上部的表层（2），表层（2）具有上表面和下表面，表层（2）上设置有贯通表层（2）的开孔（2.1），底层（1）设置有向上凸出的第一凸起部（1.1），第一凸起部（1.1）贯穿开孔（2.1），第一凸起部（1.1）的顶面超出表层（2）表面所在的平面，且底层（1）的纤维细度小于表层（2）。由此可以给使用者很好的柔软舒适体验，同时提高了材料的干爽性。

Description

一种柔软干爽双层复合材料及其制备装置、方法和卫生用品 技术领域
本发明属于双层复合材料技术领域，具体涉及一种柔软干爽双层复合材料及其制备装置、方法和卫生用品。
背景技术
吸收性卫生用品作为人们的生活必需品，涵盖卫生巾、纸尿裤、拉拉裤、成人纸尿裤、成人拉拉裤、轻度失禁产品，乳垫和吸收垫等，给人们的生活带来极大的方便。以卫生巾为例，目前中国的卫生巾市场渗透率基本是100％，也就是说每一个有月经的消费者都已经在使用卫生巾了，到今年为止，婴儿纸尿裤和拉拉裤的市场渗透率也基本到了80％左右，未来几年的市场渗透率还会继续提升。
作为面料，为了满足消费者日益增长的对舒适性和柔软性的追求，越来越多的材料采用纤维细度更细的纤维来制作面料，同时为了追求干爽性，经常采用弱亲水性的纤维或制成面料后进行弱亲性后整理，采用弱亲性处理，会帮助减少在受压时芯体里的液体反渗透穿过面料形成的回渗，但是这两种趋势目前遇到了困难，无法做到又细腻柔软又干爽，原因在于：(1)纤细的纤维会帮助提升柔软性和舒适性，尤其是面料在干燥的状态下，但是作为吸收性产品，细度的降低也会很大程度上增加单位面积的纤维数量，减少纤维与纤维之间的空隙，面料的蓬松性会降低，面料在吸收液体时会因为空隙小而减缓面料的液体下渗速度，增加液体在面料里的存储，从而增加了面层的持液量和持液率，进一步影响面料的潮感和回渗量，影响面料的干爽性和消费者的舒适体验；(2)弱亲处理会导致纤维和面料的亲水性降低，液体穿透面料的时间会加长，同时也会出现类似荷叶效应的情况，液体无法下渗，形成滑渗和侧漏问题，影响吸收性产品的功能和消费者的使用体验，漏液问题也会给消费者带来很多麻烦，比如弄脏内裤或床单等。
采用粗旦纤维和细旦纤维简单混合和比例调整的单一面料只能有限度的改善干爽性和舒适性，但无法大幅度改善和解决两者之间的矛盾和平衡。
另外一种趋势是越来越多的面料采用水刺纯棉或水刺粘胶纤维等天然概念纤维面料，但由于这些纯棉类材料本身具有吸水保水的特征，无法做到很好的干爽性，鉴于此，有必要研究一种可以解决干爽性的创新面料。
发明内容
为解决现有技术的不足，本发明的目的在于提供一种柔软干爽双层复合材料及其制备装置、方法和卫生用品，同时保证了面料的干爽和柔软亲肤。
为了实现上述目标，本发明采用如下的技术方案：
一种柔软干爽双层复合材料，包括底层和设置于底层上部的表层，表层具有上表面和下表面，表层上设置有贯通表层的开孔，底层设置有向上凸出的第一凸起部，第一凸起部贯穿开孔，第一凸起部的顶面超出表层上表面所在的平面，底层材料的纤维细度小于表层材料。
优选地，前述底层材料的亲水性弱于表层材料。
优选地，前述表层上设有第二凸起部，开孔位于第二凸起部顶面。
优选地，前述第一凸起部位于第二凸起部中的侧壁与第二凸起部的内壁全部贴合、部分贴合或者不贴合形成腔体。
优选地，前述表层上设有第二凸起部，开孔位于非第二凸起部的表层上，且第二凸起部的顶面高度低于第一凸起部的顶面。
优选地，前述底层上表面和表层下表面之间至少有部分区域粘合连接固定。
优选地，前述第一凸起部上设置有贯通底层的底层小孔。
优选地，前述第二凸起部上设置有贯通表层的表层小孔；
优选地，前述底层和表层的相互贴合处分别设置有贯通底层和表层的第一通孔和第二通孔，第一通孔和第二通孔相连通，且第一通孔和第二通孔的尺寸相同或者不同。
本发明还提供了一种柔软干爽双层复合材料的制备装置，包括第一辊、第二辊、凹辊和粘合机构；
第一辊的辊面上设置有多个用于开设开孔的第一开孔件；
凹辊与第一辊相配合，其辊面上设置有多个与第一开孔件相配合的第二开孔件，第二开孔件和第一开孔件相配合以在表层上形成若干贯通表层的开孔；
第二辊与凹辊相配合，其辊面上设置有多个用于在底层上压制出第一凸起部的第一凸台，凹辊的辊面上设置有多个与第一凸台相配合的第一凹槽，第一凹槽和第一凸台相配合以在底层上形成若干贯穿表层小孔的第一凸起部；
粘合机构用于将底层上表面和表层下表面的接触处粘合连接在一起。
优选地，前述第一辊的辊面上设置有多个用于在表层上压制出第二凸起部的第二凸台，凹辊的辊面上设置有多个与第二凸台相配合的第二凹槽，第二凹槽和第二凸台相配合以在表层上形成若干第二凸起部。
本发明还提供了一种柔软干爽双层复合材料的制备方法，提供前述柔软干爽双层复合材料的制备装置；
包括如下具体步骤：
S1、将表层输送至凹辊和第一辊之间，通过第一开孔件和第二开孔件相配合在表层上形成若干贯通表层的开孔；
S2、将表层输送至凹辊和第二辊之间，通过第一凹槽和第一凸台相配合在底层上形成若干贯穿表层小孔的第一凸起部；
S3、表层和底层继续向前输送并复合，形成双层复合材料。
本发明还提供了另一种柔软干爽双层复合材料的制备方法，提供前述柔软干爽双层复合材料的制备装置；
包括如下具体步骤：
S1、将表层输送至凹辊和第一辊之间，通过第二凹槽和第二凸台相配合在表层上形成若干第二凸起部，同时通过第一开孔件和第二开孔件相配合在第二凸起部上形成若干贯通表层的开孔；
S2、将表层输送至凹辊和第二辊之间，通过第一凹槽和第一凸台相配合在底层上形成若干贯穿表层小孔的第一凸起部；
S3、表层和底层继续向前输送并复合，形成双层复合材料。
本发明还提供了一种卫生用品，包含有前述柔软干爽双层复合材料。
优选地，前述卫生用品包括卫生巾、卫生护垫、经期裤、轻度失禁产品、尿裤、拉拉裤、护理垫、产妇巾或乳垫。
有益效果
本发明的双层复合材料通过将粗旦纤维材料和细旦纤维材料相结合，且粗旦纤维材料的高度低于细旦纤维材料，以实现细旦纤维材料接触使用者的皮肤，从而给使用者最大化的柔软舒适体验，避免了粗旦纤维材料接触使用者的皮肤，解决了粗旦面料的柔软亲肤问题，同时粗旦面料的干爽性也很好的解决了细旦纤维材料的干爽性问题，从而在保证柔软舒适的体验下，提高了面料的干爽性。
附图说明
图1是本发明一实施例的双层复合材料的结构示意图；
图2是图1中A-A处的剖面结构图；
图3是本发明另一实施例的双层复合材料的结构示意图；
图4是图3中B-B处的剖面结构图；
图5是本发明另一实施例的双层复合材料的结构示意图；
图6是图5中C-C处的剖面结构图；
图7是本发明另一实施例的双层复合材料的结构示意图；
图8是图7中D-D处的剖面结构图；
图9是本发明另一实施例的双层复合材料的结构示意图；
图10是图9中E-E处的剖面结构图；
图11是本发明一实施例的双层复合材料制备装置的结构示意图；
图12是本发明另一实施例的双层复合材料制备装置的结构示意图；
图13是本发明另一实施例的双层复合材料的结构示意图；
图14是本发明另一实施例的双层复合材料的结构示意图；
图15是本发明另一实施例的双层复合材料的结构示意图。
图中附图标记的含义：1、底层，1.1、第一凸起部，1.2、底层小孔，1.3、第一通孔2、表层，2.1、开孔，2.2、第二凸起部，2.3、表层小孔，2.4、第二通孔，3、第一辊，3.1、第一开孔件，3.2、第二凸台，4、第二辊，4.1、第一凸台，5、凹辊，5.1、第二开孔件，5.2、第一凹槽，5.3、第二凹槽，6、粘合机构。
具体实施方式
以下结合附图和具体实施例对本发明作具体的介绍。
实施例1
参见图1和图2，本发明的一种柔软干爽双层复合材料，包括底层1和设置于底层1上部的表层2，表层2上设置有若干贯通表层2的开孔2.1，底层1设置有若干向上凸出的第一凸起部1.1，第一凸起部1.1与开孔2.1相对应，且第一凸起部1.1贯穿开孔2.1，底层1上表面和表层2下表面的接触处粘合连接在一起，第一凸起部1.1的上表面高于表层2的上表面，底层1采用细旦纤维制成，表层2采用粗旦纤维制成，底层1的亲水性弱于表层2。
采用这样的结构时，表层2主要采用的无纺布面料具有较大的纤维细度，因此其能够表现出较好的渗水透气性，同时也可以具有较好的保水特性，有效地控制了回渗；底层1面料是具有较小的纤维细度，并且其通过表层2的开孔处凸起整体面料后，其直接接触皮肤，由 于其具有较小的纤维细度和弱亲水性，使得在使用时表现出较好的亲肤、柔软和干爽性。
表层2与底层1之间的粘合部位，可以是由表层2的未开孔区域与底层1的非凸出区域的平面之间粘合；粘合点可以是全部的接触面积也可以是部分的接触面积。
其中，底层1采用24克/平米1.0旦弱亲纤维制作的热风无纺布，表层2采用20克/平米2.5旦强亲纤维制作的热风无纺布，底层1上第一凸起部1.1的高度为1.2mm，第一凸起部1.1的直径为6毫米，第一凸起部1.1上设置有底层小孔1.2，底层小孔1.2直径为1毫米；表层2上的开孔2.1直径为7毫米。
优选的，表层2和底层1均采用热风无纺布，底层1的上表面比表层2上表面触感细腻，纤维更细，底层1采用纯棉面层，表层2采用双组分热风面层，表层2和底层1的颜色不同，比如底层1采用白色，表层2采用浅绿色。
优选的，底层1的上表面和表层2的下表面之间的粘合采用热合、胶合或超声波粘合中的一种。
参见图11，本实施例中，还提供一种柔软干爽双层复合材料的制备装置，包括第一辊3、第二辊4、凹辊5和粘合机构6；第一辊3的辊面上设置有多个用于开设开孔2.1的第一开孔件3.1；凹辊5与第一辊3相配合，其辊面上设置有多个与第一开孔件相配合的第二打孔件5.1，第二打孔件5.1和第一开孔件3.1相配合以在表层2上形成若干贯通表层2的开孔2.1；第二辊4与凹辊5相配合，其辊面上设置有多个用于在底层1上压制出第一凸起部1.1的第一凸台4.1，凹辊5的辊面上设置有多个与第一凸台4.1相配合的第一凹槽5.2，第一凹槽5.2和第一凸台4.1相配合以在底层1上形成若干贯穿表层2开孔2.1的第一凸起部1.1；粘合机构6用于将底层1上表面和表层2下表面的接触处粘合连接在一起。
本实施例中，柔软干爽双层复合材料的制备方法包括如下具体步骤：
S1、将表层2输送至凹辊5和第一辊3之间，通过第一开孔件3.1和第二打孔件5.1相配合以在表层2上形成若干贯通表层2的开孔2.1，同时在与底层1上表面接触的表层2下表面上施胶；
S2、将表层2输送至凹辊5和第二辊4之间，通过第一凹槽5.2和第一凸台4.1相配合以在底层1上形成若干贯穿表层2开孔2.1的第一凸起部1.1；
S3、表层2和底层1继续向前输送并复合，形成双层复合材料。
实施例2
参见图3～4，本发明的一种柔软干爽双层复合材料，包括底层1和设置于底层1上部的 表层2，表层2上设置有若干向上凸起的第二凸起部2.2，表层2上设置有若干贯通表层2的开孔2.1，底层1设置有若干向上凸出的第一凸起部1.1，第一凸起部1.1与开孔2.1相对应，且第一凸起部1.1贯穿开孔2.1，开孔2.1的外侧和表层2的下表面粘合连接在一起。
第二凸起部2.2的顶面的高度高于第一凸起部1.1的顶面的高度，使得第二凸起部2.2直接与皮肤接触，表层2的材质为细旦弱亲纤维制成的无纺布面料；同时，底层1采用粗旦面料；当表层2的第二凸起部1.1与皮肤接触时，其具有干爽、柔软的效果，底层2上形成的第一凸起部1.1具有更好的防回渗、保水的优点，当其形成凸起空腔后，使得面料整体的保水性能更好，并提高面料的蓬松性。
其中，表层2采用23gsm淡化经血无纺布面层，底层1采用20gsm热风多次亲水无纺布，开孔2.1的直径为7毫米。
优选地，第一凸起部1.1上表面的高度低于第二凸起部2.2的上表面，表层2采用细旦纤维制成，底层1采用粗旦纤维制成，表层2的亲水性弱于底层1。表层2采用22克/平米0.8旦弱亲抗菌纤维制作的热风无纺布，底层1采用22克/平米3.0旦浅绿色强亲纤维制作的热风无纺布，表层2上第二凸起部2.2的高度为1.5毫米，直径为6毫米；底层1的第一凸起部1.1高度为0.8毫米，见图3和图4。
见图5和图6，第一凸起部1.1的上表面高于第二凸起部2.2的上表面，底层1与表层2的面料材质与图3和图4相反，底层1采用细旦纤维制成，表层2采用粗旦纤维制成，底层1的亲水性弱于表层2。底层1采用30克/平米纯棉纤维制作的纯棉水刺无纺布，表层2采用22克/平米2.0旦纤维制作的热风无纺布；底层1上的第一凸起部1.1高度为1.3毫米，直径为6毫米；表层2的第二凸起部2.2高度为0.6毫米，直径为6毫米。
优选地，开孔2.1、第一凸起部1.1和第二凸起部2.2的形状和大小都可以根据需要改变。
参见图12，本实施例中，还提供一种柔软干爽双层复合材料的制备装置，包括第一辊3、第二辊4、凹辊5和粘合机构6；第一辊3的辊面上设置有多个用于开设开孔2.1的第一开孔件3.1；凹辊5与第一辊3相配合，其辊面上设置有多个与第一开孔件相配合的第二打孔件5.1，第二打孔件5.1和第一开孔件3.1相配合以在表层2上形成若干贯通表层2的开孔2.1；第二辊4与凹辊5相配合，其辊面上设置有多个用于在底层1上压制出第一凸起部1.1的第一凸台4.1，凹辊5的辊面上设置有多个与第一凸台4.1相配合的第一凹槽5.2，第一凹槽5.2和第一凸台4.1相配合以在底层1上形成若干贯穿表层2开孔2.1的第一凸起部1.1；粘合机构6用于将底层1上表面和表层2下表面的接触处粘合连接在一起。第一辊3的辊面上设置 有多个用于在表层2上压制出第二凸起部2.2的第二凸台3.2，凹辊5的辊面上设置有多个与第二凸台3.2相配合的第二凹槽5.3，第二凹槽5.3和第二凸台3.2相配合以在表层2上形成若干第二凸起部2.2。
本实施例中，柔软干爽双层复合材料的制备方法包括如下具体步骤：
S1、将表层2输送至凹辊5和第一辊3之间，第二凹槽5.3和第二凸台3.2相配合以在表层2上形成若干第二凸起部2.2，同时通过第一开孔件3.1和第二打孔件5.1相配合以在凹陷部2.3上形成若干贯通表层2的开孔2.1；
S2、将表层2输送至凹辊5和第二辊4之间，通过第一凹槽5.2和第一凸台4.1相配合以在底层1上形成若干贯穿表层2开孔2.1的第一凸起部1.1；
S3、表层2和底层1继续向前输送并复合，形成双层复合材料。
实施例3
参见图7～8，本发明的一种柔软干爽双层复合材料，包括底层1和设置于底层1上部的表层2，表层2上设置有若干向上凸起的第二凸起部2.2。第二凸起部2.2上设置有贯通表层2第二凸起部2.2的开孔2.1，底层1设置有若干向上凸出的第一凸起部1.1，第一凸起部1.1与开孔2.1相对应，且第一凸起部1.1贯穿开孔2.1，开孔2.1的外侧和表层2的下表面粘合连接在一起。第一凸起部1.1上表面的高度高于表层2的上表面，底层1采用细旦纤维制成，表层2采用粗旦纤维制成，底层1的亲水性弱于表层2。
优选地，第一凸起部1.1的侧壁弯折，且至少有部分区域与第二凸起部2.2的内壁相贴合，采用这种方式时，可以通过提高侧壁的贴合牢固性达到将面料的整体立体保持效果提升的目的。更优选地，第一凸起部1.1在位于第二凸起部2.2的内部的侧壁全部都与第二凸起部2.2的内壁贴合并粘接固定。
优选地，第二凸起部2.2开孔2.1外侧的下表面与第一凸起部1.1下部的上表面形状相对应，且粘合连接在一起，第一凸起部1.1的竖截面中，其上半部分的长度小于其下半部分的长度，见图7和图8。
见图9和图10，第一凸起部1.1的侧壁不弯折，且与第二凸起部2.2的内壁之间形成腔体，采用此结构时，可以利用形成的空腔提升面料的整体蓬松性和保水防渗性；优选地，第一凸起部1.1的侧壁为垂直于底层1上表面的竖直面。
本实施例中，还提供一种柔软干爽双层复合材料的制备装置，包括第一辊3、第二辊4、凹辊5和粘合机构6；第一辊3的辊面上设置有多个用于开设开孔2.1的第一开孔件3.1；凹 辊5与第一辊3相配合，其辊面上设置有多个与第一开孔件3.1相配合的第二打孔件5.1，第二打孔件5.1和第一开孔件3.1相配合以在表层2上形成若干贯通表层2的开孔2.1；第二辊4与凹辊5相配合，其辊面上设置有多个用于在底层1上压制出第一凸起部1.1的第一凸台4.1，凹辊5的辊面上设置有多个与第一凸台4.1相配合的第一凹槽5.2，第一凹槽5.2和第一凸台4.1相配合以在底层1上形成若干贯穿表层2开孔2.1的第一凸起部1.1；粘合机构6用于将底层1上表面和表层2下表面的接触处粘合连接在一起。第一辊3的辊面上设置有多个用于在表层2上压制出第二凸起部2.2的第二凸台3.2，凹辊5的辊面上设置有多个与第二凸台3.2相配合的第二凹槽5.3，第二凹槽5.3和第二凸台3.2相配合以在表层2上形成若干第二凸起部2.2。
本实施例中，柔软干爽双层复合材料的制备方法包括如下具体步骤：
S1、将表层2输送至凹辊5和第一辊3之间，第二凹槽5.3和第二凸台3.2相配合以在表层2上形成若干第二凸起部2.2，同时通过第一开孔件3.1和第二打孔件5.1相配合以在第二凸起部2.2上形成若干贯通表层2的开孔2.1；
S2、将表层2输送至凹辊5和第二辊4之间，通过第一凹槽5.2和第一凸台4.1相配合以在底层1上形成若干贯穿表层2开孔2.1的第一凸起部1.1；
S3、表层2和底层1继续向前输送并复合，形成双层复合材料。
实施例4
为了更好地提高透水透气效果，本专利的双层复合面料中还可以在底层和表层上开设小孔，如图13所示，在第一凸起部1.1上设置底层小孔1.2；也可以在表层进行开孔，如图14所示，在第二凸起部2.2上设置表层小孔2.3；同时也可以在底层1和表层2上设置贯通的通孔，如图15所示，底层1和表层2的相互贴合处分别设置有贯通底层1和表层2的第一通孔1.3和第二通孔2.4，所述第一通孔1.3和第二通孔2.4相连通，且第一通孔1.3和第二通孔2.4的尺寸相同或者不同。
以上显示和描述了本发明的基本原理、主要特征和优点。本行业的技术人员应该了解，上述实施例不以任何形式限制本发明，凡采用等同替换或等效变换的方式所获得的技术方案，均落在本发明的保护范围内。

Claims (15)

  1. 一种柔软干爽双层复合材料，其特征在于，包括底层(1)和设置于底层(1)上部的表层(2)，所述表层(2)具有上表面和下表面，所述表层(2)上设置有贯通表层(2)的开孔(2.1)，所述底层(1)设置有向上凸出的第一凸起部(1.1)，所述第一凸起部(1.1)贯穿开孔(2.1)，第一凸起部(1.1)的顶面超出表层(2)上表面所在的平面，所述且底层(1)材料的纤维细度小于表层(2)材料的纤维细度。
  2. 根据权利要求1所述的柔软干爽双层复合材料，其特征在于，所述底层(1)材料的亲水性弱于表层(2)材料。
  3. 根据权利要求1所述的柔软干爽双层复合材料，其特征在于，所述表层(2)上设有第二凸起部(2.2)，所述开孔(2.1)位于第二凸起部(2.2)顶面。
  4. 根据权利要求2所述的柔软干爽双层复合材料，其特征在于，所述第一凸起部(1.1)位于第二凸起部(2.2)中的侧壁与第二凸起部(2.2)的内壁全部贴合、部分贴合或者不贴合形成腔体。
  5. 根据权利要求1所述的柔软干爽双层复合材料，其特征在于，所述表层(2)上设有第二凸起部(2.2)，所述开孔(2.1)位于非第二凸起部(2.2)的表层(2)上，且所述第二凸起部(2.2)的顶面高度低于第一凸起部(1.1)的顶面。
  6. 根据权利要求1所述的柔软干爽双层复合材料，其特征在于，所述底层(1)上表面和表层(2)下表面之间至少有部分区域粘合连接固定。
  7. 根据权利要求书1所述的柔软干爽双层复合材料，其特征在于，所述第一凸起部(1.1)上设置有贯通底层(1)的底层小孔(1.2)。
  8. 根据权利要求书1所述的柔软干爽双层复合材料，其特征在于，所述第二凸起部(2.2)上设置有贯通表层(2)的表层小孔(2.3)；
  9. 根据权利要求书1所述的柔软干爽双层复合材料，其特征在于，所述底层(1)和表层(2)的相互贴合处分别设置有贯通底层(1)和表层(2)的第一通孔(1.3)和第二通孔(2.4)，所述第一通孔(1.3)和第二通孔(2.4)相连通，且第一通孔(1.3)和第二通孔(2.4)的尺寸相同或者不同。
  10. 一种柔软干爽双层复合材料的制备装置，其特征在于，包括第一辊(3)、第二辊(4)、凹辊(5)和粘合机构(6)；
    所述第一辊(3)的辊面上设置有多个用于开设开孔(2.1)的第一开孔件(3.1)；
    所述凹辊(5)与第一辊(3)相配合，其辊面上设置有多个与第一开孔件(3.1)相配合的第二开孔件(5.1)，所述第二开孔件(5.1)和第一开孔件(3.1)相配合以在表层(2) 上形成若干贯通表层(2)的开孔(2.1)；
    所述第二辊(4)与凹辊(5)相配合，其辊面上设置有多个用于在底层(1)上压制出第一凸起部(1.1)的第一凸台(4.1)，所述凹辊(5)的辊面上设置有多个与第一凸台(4.1)相配合的第一凹槽(5.2)，所述第一凹槽(5.2)和第一凸台(4.1)相配合以在底层(1)上形成若干贯穿表层(2)开孔(2.1)的第一凸起部(1.1)；
    所述粘合机构(6)用于将底层(1)上表面和表层(2)下表面的接触处粘合连接在一起。
  11. 根据权利要求10所述的一种柔软干爽双层复合材料的制备装置，其特征在于，所述第一辊(3)的辊面上设置有多个用于在表层(2)上压制出第二凸起部(2.2)的第二凸台(3.2)，所述凹辊(5)的辊面上设置有多个与第二凸台(3.2)相配合的第二凹槽(5.3)，所述第二凹槽(5.3)和第二凸台(3.2)相配合以在表层(2)上形成若干第二凸起部(2.2)。
  12. 一种柔软干爽双层复合材料的制备方法，其特征在于，提供根据权利要求10所述的柔软干爽双层复合材料的制备装置；包括如下具体步骤：
    S1、将表层(2)输送至凹辊(5)和第一辊(3)之间，通过第一开孔件(3.1)和第二开孔件(5.1)相配合在表层(2)上形成若干贯通表层(2)的开孔(2.1)；
    S2、将表层(2)输送至凹辊(5)和第二辊(4)之间，通过第一凹槽(5.2)和第一凸台(4.1)相配合在底层(1)上形成若干贯穿表层(2)开孔(2.1)的第一凸起部(1.1)；
    S3、表层(2)和底层(1)继续向前输送并复合，形成双层复合材料。
  13. 一种柔软干爽双层复合材料的制备方法，其特征在于，提供根据权利要求11所述的柔软干爽双层复合材料的制备装置；包括如下具体步骤：
    S1、将表层(2)输送至凹辊(5)和第一辊(3)之间，通过第二凹槽(5.3)和第二凸台(3.2)相配合在表层(2)上形成若干第二凸起部(2.2)，同时通过第一开孔件(3.1)和第二开孔件(5.1)相配合在第二凸起部(2.2)上形成若干贯通表层(2)的开孔(2.1)；
    S2、将表层(2)输送至凹辊(5)和第二辊(4)之间，通过第一凹槽(5.2)和第一凸台(4.1)相配合在底层(1)上形成若干贯穿表层(2)开孔(2.1)的第一凸起部(1.1)；
    S3、表层(2)和底层(1)继续向前输送并复合，形成双层复合材料。
  14. 一种卫生用品，其特征在于，包含有权利要求1～9任一项所述的柔软干爽双层复合材料。
  15. 根据权利要求14所述的卫生用品，其特征在于，所述卫生用品包括卫生巾、卫生护垫、经期裤、轻度失禁产品、尿裤、拉拉裤、护理垫、产妇巾或乳垫。
PCT/CN2022/131132 2022-03-31 2022-11-10 一种柔软干爽双层复合材料及其制备装置、方法和卫生用品 WO2023184987A1 (zh)

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Publication number Priority date Publication date Assignee Title
CN1092685A (zh) * 1993-03-24 1994-09-28 三井石油化学工业株式会社 用在一次性体液吸收件上的上片及其制造方法和装置
CN1318355A (zh) * 2000-03-31 2001-10-24 尤妮佳股份有限公司 弹性复合片及其制造方法
CN102112086A (zh) * 2008-08-08 2011-06-29 宝洁公司 区域化的顶片
US20180200123A1 (en) * 2016-03-16 2018-07-19 Xiamen Yanjan New Material Co., Ltd. Perforated non-woven fabric and production method thereof
CN113262106A (zh) * 2021-06-25 2021-08-17 大连双迪桃花卫生用品有限公司 卫生巾

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Publication number Priority date Publication date Assignee Title
CN1092685A (zh) * 1993-03-24 1994-09-28 三井石油化学工业株式会社 用在一次性体液吸收件上的上片及其制造方法和装置
CN1318355A (zh) * 2000-03-31 2001-10-24 尤妮佳股份有限公司 弹性复合片及其制造方法
CN102112086A (zh) * 2008-08-08 2011-06-29 宝洁公司 区域化的顶片
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CN113262106A (zh) * 2021-06-25 2021-08-17 大连双迪桃花卫生用品有限公司 卫生巾

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