CN106626564A - Nonwoven composite fabric for cleaning and preparation method of nonwoven composite fabric - Google Patents
Nonwoven composite fabric for cleaning and preparation method of nonwoven composite fabric Download PDFInfo
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- CN106626564A CN106626564A CN201510723080.8A CN201510723080A CN106626564A CN 106626564 A CN106626564 A CN 106626564A CN 201510723080 A CN201510723080 A CN 201510723080A CN 106626564 A CN106626564 A CN 106626564A
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- Prior art keywords
- layer
- binder fiber
- compound fabric
- ground floor
- binder
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2555/00—Personal care
- B32B2555/02—Diapers or napkins
Abstract
The invention provides a nonwoven composite fabric for cleaning and a preparation method of the nonwoven composite fabric. The nonwoven composite fabric comprises a first layer made by wet entanglement and a bulky pulp layer covering the first layer, and each layer comprises hot melting adhesive fibers. The layers are bonded together by passing hot air through the layers.
Description
Technical field
The present invention relates to a kind of Clean- non-woven compound fabric, more particularly to a kind of high loft layer is bonded to the complex nonwoven fabric of a nonwoven substrates layer.
Background technology
The example of the supatex fabric as rag, towel or other absorbing products is contained in prior art.These fabrics can be combined into a nonwoven absorbent layer with the nonwoven substrates layer for providing structure and intensity.In existing class nonwoven absorbent product, base fabrics (the hydroentangled substrate of a high-loft, low-density layer and wet method entanglement shaping
Web) combine.The fabric of gained is welcome, because it combines the high-loft that ground floor has and low-density and wet method tangling the soft feel that the substrate layer of shaping generally has, such as when they are used as baby' diaper, they are welcome.
However, these existing fabrics have several unsolved problems.Specifically, when being bonded on high-loft layer in the density nonwoven substrate layer of wet method entanglement, it is difficult to keep the high-loft and bulkiness of ground floor.In order to reach its fluffy degree, ground floor is typically by air lay.Next, the method that ground floor is bonded to substrate layer is generally included into wet method binding (hydrostitching) and wet method entanglement (hydroentangling).However, these methods cause the wetting of the high-loft layer of the air lay and cause their permanent compression and compacting.
In addition to the relevant issues of the compound fabric comprising an airlaid layer, the non-woven layer of the prior art air lay in them there is also problem.
Therefore, there are several an open questions in the supatex fabric with high-loft and high bulkiness component.
The content of the invention
It is an object of the present invention to provide Clean- non-woven compound fabric, it includes the high-loft absorbed layer and a nonwoven substrates layer by hot adhesion.
A further object of the present invention is to provideOnePlant Clean- non-woven compound fabric preparation method, the method comprising a high-loft absorbed layer and a kind of non-woven compound fabric of a nonwoven substrates layer.
The method of the present invention generally includes following steps：
Prepare the wet method with the first binder component and tangle into net nonwoven layers, and second nonwoven layers with high bulkiness and high-loft are covered on the wet method entanglement layer to make a not glued compound fabric.Also there is the second layer a kind of melt temperature to be substantially equal to the binder component of the first binding agent melt temperature.
It is then heated to the first and the air in the melting range of second binder fiber is thermally bonded the not glued compound fabric.The step of hot adhesion, may include to air-dry compound fabric to remove moisture from its wet method entanglement layer.And, adhesion step can be heated in a heating furnace.As they start melting, per layer of binder fiber flows through at least in part the interface between two-layer.So, each layer Simultaneous Stabilization and composite are bonded together and that any one lamination is unreal.Advantageously, thus the bonding between each layer occurs, without soaking high-loft and bulkiness layer, so as to maintain its fluffy and bulkiness.
Description of the drawings
With reference to the accompanying drawings and examples the present invention is further described.
Fig. 1 is according to the present inventionOnePlant Clean- non-woven compound fabric preparation method schematic diagram.
Specific embodiment
One embodiment of the present of invention is described with reference to Fig. 1.Ground floor fabric 2 is carried out into wet method entanglement on wet method entanglement platform 4 and is made.Fabric 2 includes at least a kind of binder fiber part.Fabric 2 can be hydrophobicity or hydrophily.Preferably, the first tissue layer 2 includes the staple fiber entangled with binder fiber wet method.The staple fiber preferably accounts for 60-85 weight % of this layer, and it is about 1.7-6 dtexs and length is for about 30-70 millimeters.Binder fiber preferably accounts for about 15-40 weight % of this layer.Before wet method is tangled, a kind of layer of staple fibers can be made by any method commonly known in the art, such as including combing method, Non-orientation Method and air-flow method.Then the layer of staple fibers can carry out wet method entanglement by well known any method in prior art.The example that wet method is tangled has been introduced in the US3485706 of Evans, and which is incorporated herein by reference.The base of wet method entanglement layer 2 is preferably 10- 100gm/m2, most preferably 20-70gm/m2 again.
Then wet method entanglement layer 2 can carry out under vacuum predrying in drier 6.This pre-dried step is selective.
Then shape headstock 8 second tissue layer 10 of a high-loft is covered in the first tissue layer to form not glued compound fabric 12.The binder fiber of preferred paper pulp of the second layer 10 comprising 60-85 weight % and 15-40 weight %.Most preferably paper pulp is southern kraft pulp, and this is well known in the prior art.Preferably, the second layer 10 is substantially the contactless heat drying of Jing.There is provided the example of air lay in US3692622, which is incorporated herein by reference.The base of the second layer is preferably 10-100gm/m2, most preferably 20- 70gm/m2 again.The second layer 10 can be covered in any surface of wet method entanglement layer 2, and it can be flimsy material film made by, and is applied directly on chopped fiber shaping net surface as an airlaid net, or is provided as an airlaid on forming wire.The preferred weight ratio of two tissue layers 2 and 10 is for about 1: 1, and adjustable scope is 1: 4 to 4: 1.
Binder fiber for two tissue layers 2 and 10 is preferably bicomponent fibre, wherein polyethylene as outer layer polyethylene terephthalate or polypropylene as internal layer.Bicomponent fibre is that preferably as bicomponent fibre will only destroy their a part of structure during melting, and remaining structure division is can to participate in fabric construction and increase elasticity for homogeneous fiber.Can be using skin-core structure and sticked bicomponent fibre.Binder fiber length is preferably 30-70 millimeters, and for 1.7-6 dtexs.Most preferably binder fiber length is 40-60 millimeters, and 2.2 dtexs, and accounts for 20 weight % of each tissue layer.The binder component of two tissue layers 2 and 10 has the melt temperature that is substantially identical, and the melt temperature is typically low and for polyethylene part is preferably 129-134 DEG C.
Then them are made mutually to bond by heating furnace 14 two tissue layers 2 and 10 of not glued compound fabric 12, the temperature of heating furnace is the scope of binder fiber melt temperature.At least a portion of binder component in two tissue layers melts the fiber crossovers lamination portion that cocurrent enters in each tissue layer in heating furnace 14 and stream enters the interface zone of two-layer.So, each layer Simultaneous Stabilizationization and mutually bond without the density for improving each layer.The compound fabric 16 of bonding remains the high fluffy of tissue layer 10.
In a most preferred embodiment of the inventive method, the pre-dryer 6 in Fig. 1 is eliminated, and high-loft layer 10 is that contactlessly hot air drying is directly covered to the wet method entanglement layer 2 of wetting Jing.Then the bonding of not glued composite bed occurs simultaneously with the drying of tissue layer 2 in heating furnace 14.By being dried and boning simultaneously, thus this most preferred embodiment of the inventive method is saved greatly production cost and time.
In another embodiment of the present invention, before thermobonding step is carried out, second wet method entanglement layer is covered in the exposed lateral side of the high-loft layer.A not glued compound fabric is made from there through two wet method entanglement layers for being mingled with high-loft layer.Second wet method entanglement layer is substantially same as ground floor, and binder component may also be aforesaid binding agent.Then the not glued compound fabric carries out hot adhesion by being heated to the air of binder fiber melt temperature.Which results in all three layers of binder component melting and flow through the interface of each layer at least in part.Thus, each layer Simultaneous Stabilization and the compound fabric are bonded together the density without increasing each layer.The bonding compound fabric of gained maintains the high-loft of pulp layer and compared to single high bulked fabric or its fabric for being combined with single wet method entanglement layer, greatly reduces flyings and a dirt.
In addition to the previous methods, the present invention further includes thus obtained supatex fabric.The present invention'sOnePlant Clean- non-woven compound fabric to generally include：The ground floor that wet method is tangled, it includes at least one binder fiber component；The second layer of one high-loft, it also includes binder fiber component；And covering second high-loft layer on the first layer.At least partially through bed boundary, stream enters in ground floor the fibre fractionation of the second layer, and the fibre fractionation of the ground floor is similarly at least partially through bed boundary, and stream enters in the second layer, and thus two-layer is bonded together.Thus each layer advantageously bonds the density without increasing each layer.
Preferably, the present inventionOneThe ground floor for planting Clean- non-woven compound fabric includes the staple fiber entangled with binder fiber wet method.The staple fiber preferably accounts for 60-85 weight % of this layer, and for about 1.2-6 dtexs and length are for about 30-70 millimeters.Binder fiber is preferably about 15-40% weight of the layer weight.Before wet method is tangled, a layer of staple fibers can be made by any method commonly known in the art, for example carding method, omnidirectional forming process and air-flow forming process.Then the layer carries out wet method entanglement by generally well-known any method in prior art.There is provided the example of air lay in US 3692622, which is incorporated herein by reference.The base of the second layer is preferably 10-100gm/m2, most preferably 20-70gm/m2 again.
The present inventionOnePlant the viscose fibre of paper pulp of the preferred second layer of Clean- non-woven compound fabric comprising 60-85 weight % and 15-40 weight %.Most preferably paper pulp is southern kraft pulp, and this is well known in the prior art.Preferably, the second layer is substantially dry.The base of the second layer is preferably 10- 100gm/m2, most preferably 20-70gm/m2 again.The second layer can be covered in any surface of the ground floor of wet method entanglement, and it can be flimsy material film made by, and be applied directly on the surface of chopped fiber forming net as an airlaid net, or provide as an airlaid on forming wire.The preferred weight ratio of two tissue layers is for about 1: 1, and adjustable scope is 1: 4 to 4: 1.
Binder fiber for two tissue layers of the present invention is preferably bicomponent fibre, wherein polyethylene as outer layer polyethylene terephthalate or polypropylene as internal layer.Bicomponent fibre is that preferably as bicomponent fibre will only destroy their a part of structure during melting, and remaining structure division is can to participate in fabric construction and increase elasticity for homogeneous fiber.Can be using skin-core structure and sticked bicomponent fibre.Binder fiber length is preferably 30-70 millimeters, and for 1.7-6 dtexs.Most preferably binder fiber length is 40-60 millimeters, and 2.2 dtexs, and they account for 20 weight % of each tissue layer.
In the present inventionOneIn planting another embodiment of Clean- non-woven compound fabric, second wet method entangled fabric is bonded in the exposed lateral side of the high-loft layer.Thus high-loft layer is clipped between two wet method entanglement layers.Second wet method entanglement layer is substantially same as ground floor, and binder component can also be binding agent as the aforementioned.Binder fiber component flows through at least in part the interface cocurrent of tissue layer to be entered high-loft layer and is thus bonded together two-layer.Thus, three layers of Simultaneous Stabilization and the compound fabric are bonded together the density without increasing each layer.The bonding compound fabric of gained maintains the high-loft of pulp layer and compared to single high bulked fabric or its bonded fabric with single wet method entanglement layer, greatly reduces flyings and plays dirt.This kind of fabric may prove and be particularly well-suited to baby' diaper.
Claims (9)
1. a kind of method for preparing Clean- non-woven compound fabric, it is comprised the following steps：
The first step, prepares the entanglement of the wet method comprising the first binder fiber component non-woven substrate tissue layer into the net, and the first binder fiber has required melt temperature scope；
Second step, second nonwoven layers is covered on the first layer to make a not glued compound fabric, the second layer has high bulkiness and high-loft component and second binder fiber component, second binder fiber component has required melt temperature scope, is substantially equal to the melt temperature of first binder fiber.
2. the 3rd step, with the not glued compound fabric described in the gas medium heat bonding of heating, the gas medium is heated in the first and melting range of second binder fiber；The first described and second binder fiber component melt at least in part the interface zone that cocurrent is entered between the ground floor and the second layer；And cool down each layer；Thus each layer stabilizes and does not increase any one layer of density.
3. a kind of as claimed in claim 1 method for preparing Clean- non-woven compound fabric, ground floor includes the staple fiber of wet method entanglement wherein described in step 2.
4. a kind of as claimed in claim 1 method for preparing Clean- non-woven compound fabric, wherein ground floor described in step 2 includes the staple fibre of 60-85% and the bicomponent binder fibers of 40-15%.
5. a kind of as claimed in claim 3 method for preparing Clean- non-woven compound fabric, wherein described bicomponent binder fibers include an outer layer of polyethene and a polyethylene terephthalate and/or inner layer of polypropylene, wherein described bicomponent fibre length is preferably 30-70 millimeters, and for 1.7-6 dtexs.
6. a kind of as claimed in claim 1 method for preparing Clean- non-woven compound fabric, the second layer described in wherein rapid two is the mixture of the bicomponent binder fibers of the paper pulp and 40-15% for including 60-85 weight %, the bicomponent binder fibers include an outer layer of polyethene and a polyethylene terephthalate and/or inner layer of polypropylene, wherein described bicomponent fibre length is preferably 30-70 millimeters, and for 1.7-6 dtexs.
7. a kind of as claimed in claim 5 method for preparing Clean- non-woven compound fabric, wherein the length of the binder fiber is preferably 40-60 millimeters, and about 2.2 dtexs.
8. a kind of as claimed in claim 5 method for preparing Clean- non-woven compound fabric, wherein the paper pulp includes southern kraft pulp.
9. a kind of Clean- non-woven compound fabric, it includes：
（a）Wet method entanglement ground floor into the net, the layer includes at least the first binder fiber component；
B () covers the second layer on the first layer, and the bed boundary between two-layer；Institute
State the second layer and include high bulkiness and high-loft component and comprising second binder fiber component, the melt temperature of second binder fiber component is substantially equal to first binding agent group
Point；Second binder fiber component is entered in the ground floor at least partially through bed boundary cocurrent；The ground floor binder fiber component is entered in the second layer at least partially through described bed boundary cocurrent, and thus described ground floor and the second layer mutually bond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510723080.8A CN106626564A (en) | 2015-10-29 | 2015-10-29 | Nonwoven composite fabric for cleaning and preparation method of nonwoven composite fabric |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510723080.8A CN106626564A (en) | 2015-10-29 | 2015-10-29 | Nonwoven composite fabric for cleaning and preparation method of nonwoven composite fabric |
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| CN106626564A true CN106626564A (en) | 2017-05-10 |
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| CN201510723080.8A Pending CN106626564A (en) | 2015-10-29 | 2015-10-29 | Nonwoven composite fabric for cleaning and preparation method of nonwoven composite fabric |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111836673A (en) * | 2018-03-12 | 2020-10-27 | 吴羽泰克株式会社 | Filter reinforcing material and filter medium for deodorizing filter comprising same |
-
2015
- 2015-10-29 CN CN201510723080.8A patent/CN106626564A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111836673A (en) * | 2018-03-12 | 2020-10-27 | 吴羽泰克株式会社 | Filter reinforcing material and filter medium for deodorizing filter comprising same |
| CN111836673B (en) * | 2018-03-12 | 2022-07-12 | 吴羽泰克株式会社 | Filter reinforcing material and filter medium for deodorizing filter comprising same |
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Application publication date: 20170510 |
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| WD01 | Invention patent application deemed withdrawn after publication |