CN1185995C - Gradient surface energy three-D pore structure of non-woven fabric - Google Patents

Gradient surface energy three-D pore structure of non-woven fabric Download PDF

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Publication number
CN1185995C
CN1185995C CN 02134489 CN02134489A CN1185995C CN 1185995 C CN1185995 C CN 1185995C CN 02134489 CN02134489 CN 02134489 CN 02134489 A CN02134489 A CN 02134489A CN 1185995 C CN1185995 C CN 1185995C
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surface
nonwoven fabric
surface energy
dimensional
hole
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CN 02134489
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Chinese (zh)
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CN1394563A (en )
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许大鹏
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许大鹏
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Abstract

一种一次性卫生用品用非织造布的具有表面能梯度的三维孔结构,该结构是在任意幅面的基料上布满以任意方式排列的三维孔,在孔的内、外表面涂覆有一层高于基料能级,并能形成表面能梯度的涂料。 A disposable sanitary article having a three-dimensional pore structure with a surface energy gradient of the nonwoven fabric, the structure is covered with a three-dimensional hole arranged in any manner on any base material web, within the bore, the outer surface is coated with a storey level of the base material, and can form a surface energy gradient coating. 三维孔是大致为圆锥形或棱锥形的孔。 Three-dimensional pore is substantially conical or pyramidal hole. 涂料为离子型、非离子型表面活性剂或水溶性纤维素。 Coatings of ionic, nonionic surfactants or water-soluble cellulose. 涂料涂覆于三维孔自孔底部到大约1/3~2/3孔高处的内、外表面。 Coating is applied to a three-dimensional pore into the bore hole from a bottom height of about 1/3 to 2/3, the outer surface. 本发明可有效克服液体表面张力,使液体能从孔口到孔底定向流动,并能迅速渗透过表层到达吸收芯体,达到既能保持表层的干爽性,又具有良好透气和排湿性的目的。 The present invention can effectively overcome the surface tension of the liquid, the liquid from the orifice to the bottom of the hole directional flow, and can rapidly permeate through the skin to reach the absorbent core, thus achieving the retention of dry skin, but also has good ventilation and humidity of the object .

Description

非织造布的具有表面能梯度的三维孔结构 Nonwoven fabric having a three-dimensional pore structure of the surface energy gradients

技术领域 FIELD

本发明涉及用于制作妇女卫生巾、护理垫、婴儿尿裤等一次性卫生用品的非织造布,特别是涉及一种能使液体迅速由表层渗透到吸收芯体中的非织造布的具有表面能梯度的三维孔结构。 The present invention relates to a nonwoven fabric for the production of sanitary napkins, nursing pads, baby diapers and other disposable hygiene products, and more particularly to a way for a surface having rapid penetration of liquid from the surface to the absorbent core is a nonwoven fabric It can be a three-dimensional pore structure gradient.

背景技术 Background technique

非织造布是由梳理、热压、化学粘接剂粘接等非纺织方法制成的一种非纺织布料,由于其纤维与纤维间具有微孔,易于使液体渗漏,而被用作制作妇女卫生巾、护理垫、婴儿尿裤等一次性卫生用品的主要材料。 Nonwoven fabric is a nonwoven fabric made of a carding, hot-pressing, adhesive bonding and other chemical nonwoven method, the fibers between the fiber and microporous, liquid liable to leak, is used to make the main material sanitary napkins, nursing pads, baby diapers and other disposable hygiene products. 在一次性卫生用品中,非织造布是介于皮肤与吸收芯体间的隔离层,其关键作用是让液体迅速由表层渗透到吸收芯体中去。 Disposable sanitary articles, the nonwoven fabric is interposed between the spacer layer and the absorbent core of the skin, the key role is to allow the rapid penetration of liquid from the surface to the absorbent core to go. 为此,现有非织造布的表面都要进行全幅亲水处理,其结果是液体渗透能力虽然增强了,但由于微孔毛细管的贮水作用,而使得卫生用品表面潮湿,而湿气又不能流通,因而造成了微生物滋生的环境,导致使用者产生皮肤骚痒、红肿等不适。 To this end, the surface of the conventional nonwoven fabric is treated to be hydrophilic full width, as a result, although the liquid permeability is enhanced, but since the microporous capillary action of the reservoir, such that hygiene wet surface, moisture can not be circulation, resulting in a microbial growth environment, resulting in user-generated skin itching, swelling and discomfort. 为了保持非织造布的柔肤特性,也有人采用在疏水性非织造布上打孔,由于液体的表面张力,除非孔打得非常之大,而且又是平面孔型,则液体可以渗透下去。 To maintain nonwoven fabric softening properties, was also employed in the hydrophobic perforated nonwoven cloth, due to the surface tension of the liquid, the hole played unless very large, and it is the flat-pass, the liquid can penetrate down. 而如果卫生用品的包覆材料孔太大则会造成吸收芯体的粉末(如纸粉、高分子吸水树脂粉、绒毛浆粉等)外漏现象,这是卫生材料所不允许的。 If the coating material is too large pores hygiene powder leakage phenomenon absorbent core (e.g., paper dust, powder, super absorbent polymers, fluff pulp powder) will cause, sanitary materials which is not permitted.

发明内容 SUMMARY

本发明旨在解决上述问题,而提供一种非织造布的具有表面能梯度的三维孔结构,以便有效克服液体表面张力,使液体能从孔口到孔底定向流动,并能迅速渗透过表层到达吸收芯体,达到既能保持表层的干爽性,又具有良好透气和排湿性的目的。 The present invention aims to solve the above problems, to provide a non-woven fabric having a three-dimensional pore structure of the surface energy gradients, in order to effectively overcome the surface tension of the liquid, the liquid from the orifice to the bottom of the hole directional flow, and can rapidly permeate through the skin reach the absorbent core, thus achieving the retention of dry skin, but also has good ventilation and humidity of the object.

为实现上述目的,本发明提供一种非织造布的具有表面能梯度的三维孔结构,该结构它是在任意幅面的非织造布基料上布满以任意方式排列的三维孔,在孔的内、外表面涂覆有一层其表面能级高于基料表面能级,并能形成表面能梯度的涂料。 To achieve the above object, the present invention provides a non-woven fabric having a three-dimensional pore structure of the surface energy gradient, which is covered with a three-dimensional structure of the holes arranged in any manner on a nonwoven fabric web of any material, in the hole inner and outer surfaces coated with a surface level which is higher than the level of the surface of the base material, and can form a surface energy gradient coating.

三维孔是大致为圆锥形或棱锥形的孔。 Three-dimensional pore is substantially conical or pyramidal hole.

三维孔为上下贯通的孔。 Three holes vertically penetrating holes.

所述非织造布具有接近身体面的顶部以及远离身体面的底部,其顶部开口,底部保留纤维网,从而形成所述的三维孔。 The nonwoven fabric having a top surface and close to the body away from the bottom surface of the body, its top opening, the bottom of the retention web, thereby forming said three-dimensional pore.

涂料为离子型、非离子型表面活性剂或水溶性纤维素。 Coatings of ionic, nonionic surfactants or water-soluble cellulose.

涂料涂覆于三维孔自孔底部到大约1/3~2/3孔高处的内、外表面。 Coating is applied to a three-dimensional pore into the bore hole from a bottom height of about 1/3 to 2/3, the outer surface.

本发明的贡献在于,它有效解决了现有非织造布所存在的干爽性、透气性及排湿性差等问题。 The contribution of the present invention is that it effectively solves the problem of the present nonwoven fabric dryness, breathability and poor humidity resistance. 由于本发明在非织造布基料上布设了具有三维结构的孔,且在孔表面涂覆了比基料表面能级更高的涂料,因而形成了表面能梯度,使得液体能从孔口到孔底定向流动,并迅速渗透过表层而到达吸收芯体。 Since the present invention is arranged on the non-woven fabric base material having a three-dimensional pore structure, and is coated with a surface level higher than the base material of the surface coating material in the pores, creating a surface energy gradient, such that the liquid from the orifice directional flow hole bottom, quickly permeate through the skin to reach the absorbent core. 由于表层的疏水性,液体不能保留在上面,则表层的干爽性得以保证,很显然,干爽的非织造布的透气性也非常好,因而也具有良好排湿性,这样就杜绝了微生物滋生的环境。 Due to the surface hydrophobicity, the liquid can not be retained in the above, the dry superficial is ensured, it is clear that the permeability dry non-woven fabric is also very good, and thus has good humidity resistance, thus eliminate the microbial growth environment . 还由于孔底保留了纤维网,因而可阻止吸收芯体的粉末外漏。 Since the bottom of the hole further retains a fibrous web, and can prevent leakage of the powder absorbent core.

附图说明 BRIEF DESCRIPTION

图1是本发明的单个三维孔结构俯视图。 FIG. 1 is a three-dimensional pore structure of the present invention, the single plan view.

图2是图1的剖视图。 FIG 2 is a cross-sectional view of FIG.

图3是本发明的单个三维孔另一结构俯视图。 FIG 3 is a single three-dimensional pore structure of the present invention is a further plan view.

图4是图3的剖视图。 FIG 4 is a cross-sectional view of FIG.

具体实施方式 detailed description

下列实施例是对本发明的进一步解释和说明,对本发明不构成任何限制。 The following examples further explain and illustrate the present invention, the present invention does not constitute any limitation.

实施例1参阅图1、图2,本发明的非织造布的具有表面能梯度的三维孔结构是在任意幅面的非织造布基料10上布满三维孔20,该三维孔是大致为圆锥形或棱锥形的孔,本例中为棱锥形的孔,它们凸伸于基料下部,形成三维立体结构。 Example Embodiment 1 Referring to FIG 1, FIG 2, a three-dimensional pore structure having a surface energy gradient of the nonwoven fabric of the present invention is covered with a three-dimensional apertures 20 in the nonwoven substrate of any web material 10, the three-dimensional apertures are substantially conical shaped or pyramidal hole, in this case pyramidal hole, the lower portion thereof protruding in the base material to form a three-dimensional structure. 本例中,三维孔为上下贯通的通孔。 In this embodiment, three holes vertically penetrating through holes. 该三维孔可通过机机械式打孔,如穿刺打孔、模冲打孔等方式实现,也可采用热气流式打孔,如熔化打孔等方式实现。 The holes may be three-dimensional, such as punch piercing, punching, stamping machine is achieved by way of mechanical drilling, punching the hot air may also be employed, such as punching, etc. to achieve melting. 基料上的三维孔可以规则或不规则的任意方式排列,基料亦可采用聚乙烯薄膜等其它疏水幅状材料。 Three holes in the base can be any regular or irregular arrangement of embodiment, the base material may employ a hydrophobic polyethylene film and other web-like material. 为克服液体的表面张力,使其能定向流动,在孔的内、外表面用专用设备涂覆有一层涂料30,该涂料为离子型、非离子型表面活性剂或水溶性纤维素,它们的表面能级高于基料的表面能级,使得在三维孔处形成表面能梯度,这种表面能梯度能使液体由孔口到孔底定向流动,并能迅速渗透过表层到达吸收芯体。 To overcome the surface tension of the liquid, so that it can be directed to flow, within the bore, the outer surface of the device is coated with a special coating 30, the coating is ionic, non-ionic surfactant or water-soluble cellulose, their a surface level higher than the surface level of the base material, so that a three-dimensional pore surface energy gradient, the surface energy gradient such that the liquid from the orifice to the bottom of the hole directional flow, and can rapidly permeate through the skin to the absorbent core. 为形成表面能梯度,涂料应涂覆于三维孔靠中下部,即自三维孔孔底部到大约1/3~2/3孔高处的内、外表面,其中涂覆于三维孔孔底部到大约2/3孔高处效果最佳。 To form a surface energy gradient should be applied to the three-dimensional pore coating on the lower, i.e. from the bottom to about three-dimensional pore bore hole height 1/3 to 2/3, an outer surface, wherein the coating on the bottom of the bore hole D about two-thirds hole height best.

实施例2参阅图3、图4,其基本结构同实施例1,所不同的是,非织造布具有接近身体面的顶部以及远离身体面的底部,其顶部开口,底部保留纤维网,即打孔时并不将底部打穿,从而形成所述的三维孔。 Example 2 Referring to FIG. 3, FIG. 4, the basic structure as in Example 1, except that the non-woven fabric having a close to the body surface of the top and away from the bottom of the body surface, the top opening, to retain the bottom webs, i.e. playing when the bottom of the hole is not penetrated, thereby forming the three-dimensional pore. 由于孔的表面及孔底处涂覆有比基料更高表面能级的涂料,故孔底的纤维网不会阻碍流速及流量,也即底部网孔不影响液体的渗透性,却可有效阻止吸收芯体的粉末外漏。 Since the coated surface and the hole bottom of the hole has a higher level than the base material of the surface coating, so that the hole bottom web and does not hinder the flow velocity, i.e., the bottom of the mesh does not affect the permeability of the liquid, but may be effective prevent leakage of the powder absorbent core.

Claims (6)

  1. 1.一种一次性卫生用品用非织造布的具有表面能梯度的三维孔结构,其特征在于,它是在任意幅面的非织造布基料(10)上布满以任意方式排列的三维孔(20),在孔的内、外表面涂覆有一层其表面能级高于基料表面能级,并能形成表面能梯度的涂料(30)。 1. A disposable sanitary article having a three-dimensional pore structure with a surface energy gradient of the nonwoven fabric, characterized in that it is covered with three holes arranged in any manner on a nonwoven fabric web material of any of (10) (20), within the bore, the outer surface thereof is coated with a surface level higher than the level of the surface of the base material, and can form a coating (30) of the surface energy gradients.
  2. 2.根据权利要求1所述的非织造布的具有表面能梯度的三维孔结构,其特征在于,所述三维孔(20)是大致为圆锥形或棱锥形的孔。 2. The three-dimensional pore structure having a surface energy gradient according to the nonwoven fabric according to claim 1, wherein said three-dimensional apertures (20) are substantially conical or pyramidal hole.
  3. 3.根据权利要求2所述的非织造布的具有表面能梯度的三维孔结构,其特征在于,所述三维孔(20)为上下贯通的孔。 3. The three-dimensional pore structure having a surface energy gradient according to the nonwoven fabric according to claim 2, wherein said three-dimensional apertures (20) is a vertically penetrating hole.
  4. 4.根据权利要求2所述的非织造布的具有表面能梯度的三维孔结构,其特征在于,所述非织造布具有接近身体面的顶部以及远离身体面的底部,其顶部开口,底部保留纤维网,从而形成所述的三维孔。 4. The nonwoven fabric having the two-dimensional pore structure of claim surface energy gradients, wherein said nonwoven fabric having a top surface and close to the body away from the bottom surface of the body, its top opening, a bottom retention web, thereby forming said three-dimensional pore.
  5. 5.根据权利要求1所述的非织造布的具有表面能梯度的三维孔结构,其特征在于,所述涂料(30)为离子型、非离子型表面活性剂或水溶性纤维素。 The three-dimensional pore structure having a surface energy gradient according to the nonwoven fabric according to claim 1, characterized in that the coating (30) is ionic, non-ionic surfactant or water-soluble cellulose.
  6. 6.根据权利要求5所述的非织造布的具有表面能梯度的三维孔结构,其特征在于,所述涂料(30)涂覆于三维孔(20)自孔底部到大约1/3~2/3孔高处的内、外表面。 6. The three-dimensional pore structure having a surface energy gradient of the nonwoven fabric according to claim 5, characterized in that the coating (30) applied to the three-dimensional apertures (20) from the bottom of the hole to about 1/3 ~ 2 hole height / 3, the outer surface.
CN 02134489 2002-07-29 2002-07-29 Gradient surface energy three-D pore structure of non-woven fabric CN1185995C (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1845913B1 (en) 2004-12-29 2010-06-30 SCA Hygiene Products AB Absorbent article having improved properties of handling low-viscosity fecal materials
EP1845910B2 (en) 2004-12-29 2013-05-22 SCA Hygiene Products AB Absorbent article having a pocket for receiving and storing faeces and method for its manufacture
US9237973B2 (en) * 2012-01-31 2016-01-19 Kimberly-Clark Worldwide, Inc. Treated apertures

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