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 PDFInfo
- Publication number
- CN1185995C CN1185995C CNB021344892A CN02134489A CN1185995C CN 1185995 C CN1185995 C CN 1185995C CN B021344892 A CNB021344892 A CN B021344892A CN 02134489 A CN02134489 A CN 02134489A CN 1185995 C CN1185995 C CN 1185995C
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- hole
- surface energy
- pore
- weaving cloth
- pore structure
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Abstract
The present invention relates to a gradient surface energy three-D pore structure of non-woven fabric for a disposable sanitary article. The present invention has the structure that three-D pores arranged by any mode are distributed on a base material of any amplitude surface, and a layer of paint which is higher than base material energy level and form a surface energy gradient is coated on the inner surfaces and the outer surfaces of the pores. Each three-D pore is about a conical or a pyramidal pore, the three-D pores are pores with upper ends communicated with lower ends, the top of the present invention is also provided with an opening, and the bottom of the present invention keeps a fiber net. The paint is anionic and non-ionic surfactant or water solubility cellulose. The paint is coated on the inner surfaces and the outer surfaces of the three-D pores from the bottom of the pore to the height of 1/3 to 2/3 of each pore. The present invention can effectively overcome the liquid surface tension to cause liquid to flow from pore openings to pore bottoms directionally, the liquid can quickly permeate a surface layer to absorb a core body, and the purposes of surface layer dryness and good permeability and humidity discharging performance are reached.
Description
Technical field
The present invention relates to be used to make the non-weaving cloth of disposable sanitary articles such as sanltary towel, nursing pad, baby diaper, particularly relate to a kind of three-D pore structure with surface energy gradient that can make liquid be penetrated into the non-weaving cloth in the absorptive core rapidly by the top layer.
Background technology
Non-weaving cloth is by a kind of non-textile cloth that non-Weaving method makes such as combing, hot pressing, chemical bonding agent be bonding, owing to have micropore between its fiber and fiber, be easy to make fluid seepage, and be used as the main material of disposable sanitary articles such as making sanltary towel, nursing pad, baby diaper.In disposable sanitary articles, non-weaving cloth is the sealing coat between between skin and absorptive core, and its pivotal role is to allow liquid be penetrated in the absorptive core by the top layer rapidly go.For this reason, the full width hydrophilic treated all will be carried out in the surface of existing non-weaving cloth, though consequently the liquid infiltration ability has strengthened, but because micropore water storage effect capillaceous, and make the surface of sanitary humidity, and dampness can not circulate, thereby has caused the environment of microbial growth, causes user to produce discomforts such as skin Pruritus, redness.In order to keep the gentle skin characteristic of non-weaving cloth, also the someone adopts on the hydrophobicity non-weaving cloth and punches, because the surface tension of liquid unless the hole is beaten very bigly, and is again a bull head, then liquid can permeate down.Can cause powder (as paper powder, hydroscopic high-molecular resin powder, the fine hair starch etc.) phenomenon that leaks outside of absorptive core if the clad material hole of hygienic article is too big, this is that hygienic material institute is unallowed.
Summary of the invention
The present invention is intended to address the above problem, and provide a kind of three-D pore structure of non-weaving cloth with surface energy gradient, so that effectively overcome surface tension of liquid, make liquid can be from the aperture to the hole at the bottom of directed flow, and can cross top layer arrival absorptive core by rapid permeability, reach the dry and comfortable property that can keep the top layer, have the purpose of well ventilative and dehumidifying again.
For achieving the above object, the invention provides a kind of three-D pore structure of non-weaving cloth with surface energy gradient, it is to be covered with the three-dimension hole of arranging in any way on the non-weaving cloth base material of any breadth for this structure, inside and outside surface-coated in the hole has its surface energy level of one deck to be higher than the base material surface energy level, and can form the coating of surface energy gradient.
Three-dimension hole is to be roughly conical or pyramidal hole.
Three-dimension hole is the hole of up/down perforation.
Described non-weaving cloth has near the top of health face and away from the bottom of health face, its open top, and the bottom keeps fleece, thereby forms described three-dimension hole.
Coating is ion-type, nonionic surfactant or water-soluble cellulose.
Coating be coated on three-dimension hole from hole bottom the inside and outside surface to about 1/3～2/3 hole eminence.
Contribution of the present invention is that it efficiently solves problems such as the existing existing dry and comfortable property of non-weaving cloth, breathability and dehumidifying difference.Because the present invention has laid the hole with three dimensional structure on the non-weaving cloth base material, and applied the coating higher than base material surface energy level at hole surface, thereby formed the surface energy gradient, make liquid can be from the aperture to the hole at the bottom of directed flow, and rapid permeability is crossed the top layer and is arrived absorptive core.Because the hydrophobicity on top layer, above liquid can not be retained in, then the dry and comfortable property on top layer was guaranteed, obviously, the breathability of dry and comfortable non-weaving cloth is also very good, thereby also has good dehumidifying, has so just stopped the environment of microbial growth.Also kept fleece, thereby can stop the powder of absorptive core to leak outside owing at the bottom of the hole.
Description of drawings
Fig. 1 is a single 3 D pore structure vertical view of the present invention.
Fig. 2 is the cutaway view of Fig. 1.
Fig. 3 is another structure vertical view of single 3 D of the present invention hole.
Fig. 4 is the cutaway view of Fig. 3.
The specific embodiment
The following example is to further explanation of the present invention and explanation, and the present invention is not constituted any limitation.
Embodiment 1
Consult Fig. 1, Fig. 2, the three-D pore structure with surface energy gradient of non-weaving cloth of the present invention is to be covered with three-dimension hole 20 on the non-weaving cloth base material 10 of any breadth, this three-dimension hole is to be roughly conical or pyramidal hole, it in this example pyramidal hole, they convexedly stretch in the base material bottom, form 3-D solid structure.In this example, three-dimension hole is the through hole of up/down perforation.This three-dimension hole can realize as modes such as puncture punching, stamping punchings by the punching of machine mechanical type, also can adopt the hot airflow type punching, realizes as modes such as fusing punchings.Three-dimension hole on the base material can be arranged by regular or irregular any-mode, and base material also can adopt other hydrophobic strip-shaped materials such as polyethylene film.For overcoming the surface tension of liquid, make its energy directed flow, inside and outside surface in the hole is coated with a coating 30 with special equipment, this coating is ion-type, nonionic surfactant or water-soluble cellulose, their surface energy level is higher than the surface energy level of base material, make to form the surface energy gradient that at the three-dimension hole place this surface energy gradient can make liquid by aperture directed flow at the bottom of the hole, and can cross top layer arrival absorptive core by rapid permeability.For forming the surface energy gradient, coating should be coated on three-dimension hole by the middle and lower part, and promptly the inside and outside surface to about 1/3～2/3 hole eminence from bottom, three-dimension hole hole wherein is coated on bottom, three-dimension hole hole to about 2/3 hole eminence best results.
Embodiment 2
Consult Fig. 3, Fig. 4, its basic structure is with embodiment 1, and different is, non-weaving cloth has near the top of health face and away from the bottom of health face, its open top, and the bottom keeps fleece, the bottom is not punched when promptly punching, thereby form described three-dimension hole.Because the surface in hole and bottom, hole are coated with than the base material coating of high surface energy level more, so the fleece at the bottom of the hole can not hinder flow velocity and flow, also promptly bottom mesh do not influence the permeability of liquid, but can effectively stop the powder of absorptive core to leak outside.
Claims (6)
1, a kind of disposable sanitary articles is with the three-D pore structure with surface energy gradient of non-weaving cloth, it is characterized in that, it is to be covered with the three-dimension hole (20) of arranging in any way on the non-weaving cloth base material (10) of any breadth, inside and outside surface-coated in the hole has its surface energy level of one deck to be higher than the base material surface energy level, and can form the coating (30) of surface energy gradient.
2, the three-D pore structure with surface energy gradient of non-weaving cloth according to claim 1 is characterized in that, described three-dimension hole (20) is to be roughly conical or pyramidal hole.
3, the three-D pore structure with surface energy gradient of non-weaving cloth according to claim 2 is characterized in that, described three-dimension hole (20) is the hole of up/down perforation.
4, the three-D pore structure with surface energy gradient of non-weaving cloth according to claim 2, it is characterized in that described non-weaving cloth has near the top of health face and away from the bottom of health face, its open top, the bottom keeps fleece, thereby forms described three-dimension hole.
5, the three-D pore structure with surface energy gradient of non-weaving cloth according to claim 1 is characterized in that, described coating (30) is ion-type, nonionic surfactant or water-soluble cellulose.
6, the three-D pore structure with surface energy gradient of non-weaving cloth according to claim 5 is characterized in that, described coating (30) be coated on three-dimension hole (20) from hole bottom the inside and outside surface to about 1/3～2/3 hole eminence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021344892A CN1185995C (en) | 2002-07-29 | 2002-07-29 | Gradient surface energy three-D pore structure of non-woven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021344892A CN1185995C (en) | 2002-07-29 | 2002-07-29 | Gradient surface energy three-D pore structure of non-woven fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1394563A CN1394563A (en) | 2003-02-05 |
| CN1185995C true CN1185995C (en) | 2005-01-26 |
Family
ID=4747767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021344892A Expired - Fee Related CN1185995C (en) | 2002-07-29 | 2002-07-29 | Gradient surface energy three-D pore structure of non-woven fabric |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1185995C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100528109C (en) * | 2004-12-29 | 2009-08-19 | Sca卫生产品股份公司 | Absorbent article having a pocket for receiving and storing faeces and method for its manufacture |
| CN100479789C (en) * | 2004-12-29 | 2009-04-22 | Sca卫生产品股份公司 | Absorbent article having improved properties of handling low-viscosity fecal materials |
| US9237973B2 (en) * | 2012-01-31 | 2016-01-19 | Kimberly-Clark Worldwide, Inc. | Treated apertures |
-
2002
- 2002-07-29 CN CNB021344892A patent/CN1185995C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1394563A (en) | 2003-02-05 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |