CN109537168A - Non-woven fabrics and wet tissue - Google Patents
Non-woven fabrics and wet tissue Download PDFInfo
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- CN109537168A CN109537168A CN201710870150.1A CN201710870150A CN109537168A CN 109537168 A CN109537168 A CN 109537168A CN 201710870150 A CN201710870150 A CN 201710870150A CN 109537168 A CN109537168 A CN 109537168A
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- Prior art keywords
- woven fabrics
- fiber
- microprotrusion
- matrix
- length
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Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H11/00—Non-woven pile fabrics
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/16—Paper towels; Toilet paper; Holders therefor
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres
- D04H1/26—Wood pulp
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/425—Cellulose series
- D04H1/4258—Regenerated cellulose series
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
- D10B2201/24—Viscose
Abstract
This application discloses a kind of non-woven fabrics and wet tissue, which includes: matrix, and described matrix surface is provided with multiple microprotrusions, has texturing structure in the microprotrusion.By the above-mentioned means, the application can make non-woven fabrics have good dispersion performance, and then make discarded non-woven fabrics under flow action, is easy dispersion, brings convenience to subsequent garbage disposal.
Description
Technical field
This application involves field of nonwoven fabric technology, more particularly to a kind of dispersible non-woven fabrics and using the non-woven fabrics
Wet tissue.
Background technique
With the fast development of economic level, people increasingly increase the pursuit of quality of life, nonwoven cloth material to
Environmentally protective aspect development.In recent years, with the popularization and development of global green product, nonwoven cloth material also face
Face new round innovation, the degradable nonwoven cloth material broken up comes into being.
The study found that a key factor is caused because of the Wiping material that can not be broken up in blockage of sewer, these
Wiping material generallys use non-woven fabrics as substrate.These disposable Wiping materials are had received widespread attention with post-processing,
The processing modes such as traditional garbage loading embeading and burning can aggravate environmental pollution, and disposable Wiping material is solved by drainage system
Processing problem become industry research direction.
But present inventor has found in long-term R&D process, disposable wiping material in practical applications
Material can not truly achieve the effect that break up, and will appear jitter time length, wet strong relatively low shape in some cases
Condition especially is more easier to occur wet strong in wet tissue field since these non-woven fabrics base materials need to impregnate in a liquid for a long time
It is relatively low or be not easy dispersion the phenomenon that.
Summary of the invention
Mainly solving the technical problems that provide a kind of non-woven fabrics and wet tissue, the non-woven fabrics and wet tissue have good the application
Dispersibility, bring convenience for subsequent garbage disposal.
In order to solve the above technical problems, the technical solution that the application uses is: providing a kind of non-woven fabrics, the nonwoven
Cloth includes: matrix, and described matrix surface is provided with multiple microprotrusions, has texturing structure in the microprotrusion.
Wherein, described matrix includes natural fiber and regenerated fiber, the quality of the natural fiber and the regenerated fiber
Than for 9:1-3:7.
Wherein, the natural fiber is wood pulp cellulose, and the length of the wood pulp cellulose is 1.5~6.5mm；The regeneration is fine
Dimension includes the first regenerated fiber and the second regenerated fiber, and first regenerated fiber is different with the length of second regenerated fiber
Or shape is different.
Wherein, the wood pulp cellulose is needlebush wood pulp cellulose.
Wherein, the length of first regenerated fiber is 3-12mm, and the length of second regenerated fiber is 6-20mm.
Wherein, first regenerated fiber is flat viscose fiber, and second regenerated fiber is round viscose rayon；Institute
The length for stating flat viscose fiber is 5mm-30mm, and the length of the circle viscose rayon is 4mm-30mm.
Wherein, the diameter of the microprotrusion is 0.05-2.0mm.
Wherein, the height of projection of the microprotrusion is less than the 70% of the height of described matrix；The protrusion of the microprotrusion is high
Degree is 0.05-2mm；Distribution density of the microprotrusion on described matrix surface is 5-40/25 square millimeters；The microprotrusion
It is arranged on described matrix surface in array or the microprotrusion is in described matrix random arrangement of surfaces.
Wherein, the texturing structure includes villus, and the villus includes stretching out body portion, the stretching body portion
Length is greater than or equal to 1mm；The villus is wood pulp cellulose；The hydrolysis time of the non-woven fabrics was at 600 seconds or less.
In order to solve the above technical problems, another technical solution that the application uses is: providing a kind of wet tissue, the wet tissue
Including described in any item non-woven fabrics as above.
The beneficial effect of the application is: being in contrast to the prior art, the non-woven fabrics of the application includes: matrix, described
Matrix surface is provided with multiple microprotrusions, has texturing structure in the microprotrusion.In this way, there is non-woven fabrics good
Good dispersion performance, and then make discarded non-woven fabrics and the wet tissue including the non-woven fabrics under flow action, it is easy dispersion, after giving
Continuous garbage disposal brings convenience.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.Wherein:
Fig. 1 is the structural schematic diagram of one embodiment of the application non-woven fabrics.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, rather than whole embodiments.Based on this
Embodiment in application, those of ordinary skill in the art are obtained every other under the premise of not making creative labor
Embodiment shall fall within the protection scope of the present invention.
Refering to fig. 1, Fig. 1 is the structural schematic diagram of one embodiment of the application non-woven fabrics.
The non-woven fabrics includes matrix 10, and 10 surface of matrix is provided with multiple microprotrusions 20, has texturing knot in microprotrusion 20
Structure 30.
Matrix 10 generally includes natural fiber and regenerated fiber, which to form with interlaced tangle of regenerated fiber
Flaky material.
Wherein, natural fiber can for wood pulp cellulose, bamboo fibre, straw pulp fiber, sugarcane pulp fibres, in cotton pulp fiber extremely
Few one kind.Preferably, in one embodiment, the length of natural fiber is in 10mm hereinafter, it is preferable to use the dispersibility to water is good
Good fiber, that is, water-dispersible fiber.One kind, which can make fibre when contacting with a large amount of water, to be referred to the dispersibility of water herein
The property being separated from each other between dimension.In addition, fibre length refers to average fiber length.
In natural fiber, the water dispersible of wood pulp cellulose is preferable.On the one hand, when the non-woven fabrics containing wood pulp cellulose and greatly
When the water contact of amount, due to wood pulp cellulose expansion and make wood pulp cellulose be easy to fall off from non-woven fabrics, to make matrix 10
Hydrolysis is become easy, therefore improves the dispersibility of non-woven fabrics.On the other hand, in the base, wood pulp cellulose also provides for matrix
Intensity and substrate base will lead to matrix strength deficiency if fibre length is too short, and too long, cause to be difficult to be dispersed.It is excellent
Choosing, natural fiber is the wood pulp cellulose that fibre length is 1.5~6.5mm, such as: 1.5mm, 2.5mm, 3.5mm, 4.5mm,
5.5mm, 6.5mm, etc.；The more preferably wood pulp cellulose of 2.0-4.5mm, such as: 2.0mm, 2.5mm, 3.0mm, 3.5mm,
4.0mm, 4.5mm, etc..
Since needlebush wood pulp cellulose has better water dispersible and longer length, it is preferred that wood pulp cellulose is needle
Leaf wood wood pulp cellulose, using needlebush wood pulp cellulose, the freedom of needlebush wood pulp is preferably 200~700cc
Left and right.What freedom herein was measured using Canadian Standard Freeness measuring method.If freedom is lower than under above-mentioned
Limit, then non-woven fabrics becomes paper-like, and handling property is poor.If freedom is higher than the above-mentioned upper limit, the wet intensity of non-woven fabrics
It reduces.
Regenerated fiber with natural fiber is interlaced tangles, when fiber is thinner, matrix 10 is easier to disperse.Preferably,
The fiber Denier of regenerated fiber preferably in 12 denier hereinafter, more preferably in 7 denier hereinafter, in addition regenerated fiber draw ratio be 400 to
14000, draw ratio herein is equal to (fibre length ÷ denier) × 1000.
In one embodiment, the mass ratio of natural fiber and regenerated fiber is 9:1-3:7, preferably 8:2-1:1.
Further, regenerated fiber includes the first regenerated fiber and the second regenerated fiber, so that matrix 10 can meet simultaneously
The needs of intensity and water dispersible.In general, from the second regenerated fiber to can be fibre length respectively different for the first regenerated fiber
Two kinds of fibers or variform two kinds of fibers.Relatively long fiber can make matrix 10 have higher intensity, and phase
Shorter fiber is easier to disperse, in addition variform fiber also has different intensity and water dispersible.
When the first regenerated fiber and the second regenerated fiber are two kinds of fibers of different length, the first regenerated fiber length can
Think 3-12mm, such as: 3mm, 5mm, 7mm, 9mm, 11mm, 12mm, etc..Second regenerated fiber length can be 6-20mm,
Such as: 6mm, 9mm, 12mm, 15mm, 18mm, 20mm, etc..It is furthermore preferred that the range of the draw ratio of the first regenerated fiber exists
Between 400 to 3000, the range of the draw ratio of the second regenerated fiber is between 3000 to 14000, and the length of the second regenerated fiber
Diameter is bigger by 300 or more than the draw ratio than the first regenerated celulose fibre.
Further, the proportion of the first regenerated fiber and the second regenerated fiber is 1:9-9:1, preferably 2:8-5:5.
In addition, in one embodiment, in the first regenerated fiber and the second regenerated fiber, one of them is 1 denier or more, and
It is another below 1 denier.
Preferably, regenerated fiber is viscose rayon, and when regenerated fiber is viscose rayon, viscose rayon is that flat viscose glue is fine
At least one of dimension, round viscose rayon.
Flat viscose fiber can be natural fiber is dissolved in corresponding solvent after, then pass through wet spinning obtain
's.Compared to round viscose rayon, flat viscose fiber has smaller bending stiffness, is easier to tangle.In general, in matrix
Fiber can be tangled by the physical property of itself, and be tangled as friction obvolvent effect.It is to be appreciated that due to flat viscous
Glue fiber compares round viscose rayon and entanglement can be realized using less external force, therefore flat viscose fiber ratio is round in water
Viscose rayon is easier to disperse.So, if containing excessive flat viscose fiber in matrix, it is immersed in solution for a long time
In be easy to happen dispersion, and then cause the applicability of non-woven fabrics poor.Therefore fine containing flat viscose glue simultaneously in viscose rayon
Dimension and round viscose rayon.Preferably, the first regenerated fiber is flat viscose fiber, and the second regenerated fiber is that round viscose glue is fine
Dimension, the first regenerated fiber and the second regenerated fiber mass ratio are 9:1-1:9, more preferably 8:2-1:1.
When the first regenerated fiber is flat viscose fiber, and the second regenerated fiber is round viscose rayon, flat viscose glue is fine
Dimension length is 5mm-30mm, such as: 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, etc., preferably 7mm-15mm, example
Such as: 7mm, 9mm, 11mm, 13mm, 15mm, etc..Round viscose rayon length be 4mm-30mm, such as: 4mm, 10mm, 20mm,
30mm, etc., more preferably 4.5-20mm, such as: 4.5mm, 6mm, 10mm, 15mm, 20mm, etc..
It is highly preferred that in the matrix of 100 mass parts, it is round containing 64-86 mass parts wood pulp cellulose, 10-28 mass parts
Viscose rayon and 2-8 mass parts flat viscose fiber.It is highly preferred that containing 74-81 mass parts wood in the matrix of 100 mass parts
The flat viscose fiber of pulp fibres, 15-20 mass parts circle viscose rayon and 4-6 mass parts.
In addition, non-woven fabrics can excessively not dropped by making it contain water-soluble or water-swellable adhesive to reach
Its wet intensity is preferably improved under conditions of low in hydrolysis.In the case where containing adhesive, non-woven fabrics preferably comprises water-soluble
The inorganic salts or organic salt of property.In addition, above-mentioned adhesive is preferably alkylcellulose, more preferably wherein also contain: (A) by
The copolymer and (B) amino acid derivativges that anhydride compound and other compounds with polymerism are formed.
In addition, other than natural fiber and regenerated fiber, other fibers can also be contained in non-woven fabrics, and such as: change
Fiber, the synthetic fibers of polypropylene, polyvinyl alcohol, polyester, polyacrylonitrile etc. are learned, or by Biodegradable synthetic fibers or are gathered
The synthetic paper-pulp etc. of the compositions such as ethylene.In addition to this it is possible to add had occurred on the surface of regenerated celulose fibre it is subtle
The fiber of fibrillation, that is, having some fineness degrees is the original that the microfibre of sub-micro grade is peeled away from the surface of above-mentioned fiber
Rayon.In addition, can preferably make non-woven fabrics even if discarding when nature as the fiber for being suitable for addition
The biodegradable fiber that can be decomposed.When containing other fibers, quality of other fibers in matrix 10 should be less than being equal to
10%, more preferably less than it is equal to 7%.
In the present invention, for the wiping operation for being suitable for non-woven fabrics under moisture state, the unit area of matrix 10
Weight is preferably 20~100g/m2.If weight per unit area is less than above-mentioned lower limit value, cannot obtain necessary wet strong
Degree.If weight per unit area is greater than above-mentioned upper limit value, its flexibility can be made to be deteriorated.Especially for the skin of cleaning person
Deng in the case where, from the aspect of wet intensity and soft feeling two, the weight per unit area of matrix 10 is more preferably 40~80g/
m2。
It is provided with multiple microprotrusions 20 on matrix 10, and is provided with texturing structure 30 in microprotrusion 20, in an embodiment party
In formula, texturing structure 30 includes villus 30, and villus 30 includes dividing with 10 coupling part of matrix and to 10 external protrusion of matrix, when
Non-woven fabrics is discarded into water, for example when being discarded in closestool, when water flow movement, macroscopically, water flow drives the non-woven fabrics
Movement, while water flow drives the non-woven fabrics to move, non-woven fabrics is crimped, when there is part water flow flowing through bending position
When nonwoven surface, in the outside of bending non-woven fabrics, flow rate of water flow increases, at the inside of bending non-woven fabrics, flow rate of water flow
It reduces, according to bernoulli principle, part water flow will be from the inside of bending non-woven fabrics on the outside of flow direction bending non-woven fabrics, when water flow is from nonwoven
When cloth matrix 10 passes through, easy band kinetodesma is fallen off from matrix 10.In addition on microcosmic, due to there is water flow from matrix 10
Surface is flowed through, and the microprotrusion 20 and texturing structure on 10 surface of matrix will generate following effect:
The first, microprotrusion 20 forms hysteresis resistance to the water flow for flowing through microprotrusion 20, and water flow forms one to microprotrusion 20
Power is pullled, that is, is easy so that the fiber in 20 region of microprotrusion pulls out matrix 10；
The second, microprotrusion 20 makes the water flow for flowing through 10 surface of matrix form turbulent flow, i.e., so that water flow is to 10 surface of matrix
Form all directions pulls power, so that matrix 10 is easy to break up；
Third, microprotrusion 20 make water flow when flowing through 10 surface of matrix, incite somebody to action in 20 upper area flow rate of water flow of microprotrusion
Increase, according to bernoulli principle, the hydraulic pressure of 20 top of microprotrusion is reduced, and the hydraulic pressure of 20 lower section of microprotrusion increases, and water flow is vertical
In matrix 10, active force is applied to matrix 10 towards 20 short transverse of microprotrusion.
4th, further, due to being provided with texturing structure, the villus 30 of the texturing structure of microprotrusion 20 in microprotrusion 20
Including making villus 30 readily from micro- in conjunction with above-mentioned 1-3 water flow effect with 10 coupling part of matrix and stretching 10 part of matrix
It falls off in protrusion 20, when there is the villus 30 of texturing structure to fall off from microprotrusion 20, so that the matrix 10 of 20 position of microprotrusion
Structure is destroyed, and the combination between fiber occurs loosely, further resulting in the fibre shedding on matrix 10.
In addition, when the non-woven fabrics is dry state or when water flow is stationary state, due to there is no flow action, the nonwoven
Cloth will be not easy to disperse, therefore wet tissue intensity is not interfered with when the non-woven fabrics is applied in wet tissue, and working as has
When flow action, when being such as applied to wet tissue, when wet tissue is put into closestool, closestool holds under flow action in water-rinsing process
It is easier that wet tissue is dispersed.
It is found that the dispersibility of non-woven fabrics is influenced by matrix 10, microprotrusion 20 and texturing structure from foregoing description.
Wherein, when the base weight of matrix 10 is larger or density is larger, water is not easy to infiltrate matrix 10, and water flow is made to flow through matrix 10
When surface, it is not easy to act on 10 generation of matrix, in addition when the stiffness of matrix 10 is larger, then matrix 10 is not easy to make in water flow
Phenomena such as bending under then makes water flow receive the sluggishness of microprotrusion 20 in addition, the microprotrusion 20 on 10 surface of matrix is excessive
Resistance is excessive, and reduction has 20 1 side surface flow rate of water flow of microprotrusion, and when microprotrusion 20 is too small then, water flow Bernoulli effect is smaller,
When the length that the villus 30 of texturing structure stretches out matrix 10 is longer, villus 30 is easier to be taken off from matrix 10 under flow action
From, it is preferred that the diameter of the microprotrusion 20 are as follows: 0.05-2.0mm, such as: 0.05mm, 1mm, 1.5mm, 2.0mm, etc., more
Preferably 0.1-1.0mm, such as: 0.1mm, 0.3mm, 0.5mm, 0.7mm, 0.9mm, 1.0mm, etc., it is possible to understand that, it is micro-
The diameter of protrusion 20 refers to microprotrusion 20 in the average diameter of 10 surface projection of matrix.The height of projection of microprotrusion 20 is 0.05-
2mm, such as: 0.05mm, 1.0mm, 1.5mm, 2.0mm, etc., but the height of projection of general microprotrusion 20 should be less than matrix
The 70% of 10 height, preferred height of projection are the 5%-55% of 10 height of matrix, such as: 5%, 10%, 20%, 30%,
40%, 50%, 55%, etc., more preferably 10%-45%, such as: 10%, 20%, 30%, 40%, 45%, etc..It is micro-
The elevation carrection of protrusion 20 can be used that non-contact measurement mode in the prior art carries out or other methods are surveyed
Amount.
In addition distribution of the microprotrusion 20 on 10 surface of matrix can also have an impact the decomposition of non-woven fabrics, preferred microprotrusion
20 distribution density on 10 surface of matrix is 5-40/25 square millimeters, more preferably 10-30/25 square millimeters.Separately
Outside, preferred microprotrusion 20 arranges on 10 surface of matrix in array, and in some cases, microprotrusion 20 is random on 10 surface of matrix
Arrangement can also be with.
The length that villus 30 stretches out matrix 10 is more than or equal to 1mm, and the preferred villus 30 stretches out the length of matrix 10
Degree is more than or equal to 2mm.Since the water dispersible of wood pulp cellulose is preferable, the villus 30 is preferably wood pulp cellulose.
Non-woven fabrics can be made as follows, fiber mat is placed on the conveyer belt of a continuous moving, to this
Fiber mat sprays high-pressure water jet, makes the jet stream from the surface of fiber mat to its underrun, and directive adjacent fibre net
One drum cover of piece.High-pressure water jet bump fiber mat, so that single fiber or bundle fiber have enough in fiber mat
Energy from fiber mat just towards reverse side move, in the process, the fiber that these fibers or bundle fiber are contacted with it
Mutually intert, be entangled with.Meanwhile the jet stream of directive drum cover is roused cover rebound and is pierced by from the negative, the fiber or fibre being pierced by from the negative
Dimension end is mapped to the rebound effect of conveyer belt due to high-pressure water jet, and randomly moves from the negative to front, and again with connect
Touching fiber generation interts, is entangled with, and is also generated same process by another High Pressure Water Jet with root fiber another part.In this way,
High-pressure water jet, drum cover collective effect under, between fiber, between fibre bundle or between fiber and fibre bundle constantly mutually
Intert, be entangled with.In addition, high-pressure water jet, which is mapped to rebound again on drum cover, has carried out secondary consolidation again to fibre web, and matrix 10 is formed, when
When offering multiple holes on drum cover, high-pressure water jet passes through fiber mat and impinges upon on drum cover, and water flow is forced to splashes
Fiber at this is moved and is intertwine with each other to drum cover tapping with having tendency, to form the relatively thin part of cloth cover；In drum cover
Meshed portion is since high-pressure water jet is directed through, and fiber is in mainly one-way movement in fibre web, while receiving drum and covering non-hole portion
Divide fiber extrusion and forms vertically and horizontally fiber collection area, so that microprotrusion 20 is formed, the microprotrusion 20 and the drum
Cover aperture has corresponding relationship, is directed through additionally, due to high-pressure water jet, and fiber is in mainly one-way movement in fiber mat,
It drives the few fibers in fiber mat to arrange in company with water flow movement direction, is formed simultaneously texturing structure, the part texturing structure
Including villus 30, the villus 30 include the part being connect with fiber mat and from fiber mat stretch out part, it is possible to understand that
, fiber mat forms matrix 10, microprotrusion 20 and texturing structure after drying.Herein, so-called fiber mat refers to fiber
The fiber tablet that direction is reached unanimity to a certain extent.
In addition, handling the property of the non-woven fabrics obtained with the weight per unit area of fiber mat, spray with this water-jet
The difference by parameters such as speed (processing speed) when the aperture of mouth, the hole count of nozzle, processing fiber mat changes.
In addition, preferably needless to say its drying applies water-jet processing to it after forming fiber mat, exist in this way
It is relatively simple in process.In addition, water-jet processing can also be applied to it once after fiber mat is dry.
In addition, non-woven fabrics is not limited to water-jet processing, also can use needle or air etc. makes fiber interlock to make
It makes.
Fracture when wet under saturation state of non-woven fabrics obtained moistens intensity (wet strong) preferably according to the method described above
It is the root average value of the longitudinal direction (MD, Machine Direction) and lateral (CD, Cross Direction) by non-woven fabrics
In 75g/25mm or more.Longitudinal wet is strong and laterally wet strong with reference to using " the survey of GB/T 12914-2008 paper and cardboard tensile strength
It is fixed " test method, wherein Sample Width is 50mm, and folder is away from for 50mm, tensile speed 100mm/min.
But the numerical value is the standard value measured according to the method described above always, as long as product, which has, moistens rheobase with this
Identical wet intensity in sheet.It should be noted that as long as wet intensity can be made in 75g/25mm or more substantially resistant to by wiping
Industry.Wet intensity is more preferably in 100g/25mm or more.
In addition, non-woven fabrics it is water-disintegrable at 600 seconds hereinafter, preferably at 300 seconds hereinafter, more preferably at 200 seconds or less.This
Place, it is water-disintegrable to refer to using the shaking for meeting INDA/EDANA:FG502-Slosh box disintegration test specification
Case, and non-woven fabrics is started the time disintegrated, disintegrate herein and be defined as under certain water and certain slosh frequency: from
First small pieces sample is isolated on non-woven fabrics cloth body, the water-disintegrable as beginning dissociation time, unit is the second.
But the numerical value is the standard value measured according to the method described above always, as long as product is with water-disintegrable basic with this
It is upper identical water-disintegrable.It should be noted that in order to ensure the non-woven fabrics investment water closet in make its washed away without
Can lead to the problem of any, it is generally recognized that it is water-disintegrable at 600 seconds hereinafter, preferably 300 seconds hereinafter, more preferably 200 seconds with
Under.
Non-woven fabrics can have excellent water-disintegrable and wet intensity being free of adhesive, wet in order to further increase its
Moisten intensity, can according to need and add a kind of water solubility that fiber and fiber can be made to bond or water-swellable into non-woven fabrics
Adhesive.The water-disintegrable and wet intensity of above-mentioned non-woven fabrics is excellent, can be used than bonding contained in existing non-woven fabrics
The less adhesive of agent can obtain the non-woven fabrics with excellent water-disintegrable and wet intensity.
Adhesive includes but is not limited to: the alkane such as carboxymethyl cellulose, methylcellulose, ethyl cellulose, benzylcellulose
Base cellulose or polyvinyl alcohol or the modified polyvinylalcohol containing predetermined amount sulfonic group or carboxyl etc..At this moment, it need to only add few
The adhesive of amount, for example, the adhesive that need to only add 1~7g or so can be obtained enough moisten by force relative to fiber 100g
Degree, and preferably 2g or so.Since these adhesives have water-soluble or water-swellable, when being contacted with a large amount of water
It will dissolve or be swollen.In addition, if it is water-soluble adhesive, silk can be used to make to contain adhesive in non-woven fabrics
The method that net print process etc. is applied.In addition, can then be incited somebody to action when manufacturing fiber mat if it is the adhesive of water-swellable
Its mixed copy is entered, so that containing adhesive in non-woven fabrics.
In addition, in the case of the use of adhesives, if made in non-woven fabrics containing water-soluble inorganic salts or organic salt etc.
Electrolyte, then the wet intensity of non-woven fabrics can be further improved.
In non-woven fabrics, other substances can also be contained in the range of not interfering the application effect.Such as it can contain
The polyalcohol etc. of alcohols, the glycerol of surfactant, fungicide, preservative, deodorant, moisturizer, ethyl alcohol etc. etc..
Illustrate the non-woven fabrics of the application with specific embodiment below.
Embodiment 1:
Form matrix 10 using wood pulp and viscose rayon, the proportion substantially 7:3 of wood pulp and viscose rayon, water-jet at
Type, 20 diameter 0.4mm of microprotrusion, 20 density of microprotrusion are 20/25 square millimeters, and the villus 30 of texturing structure is wood pulp, suede
The length that hair 30 stretches out matrix 10 is greater than 0.5mm, and the length for the stretching matrix 10 which refers to is average length.
Comparative example 1-3:
Using wood pulp+viscose fiber similarly to Example 1, wood pulp is similar to the present embodiment 1 to the proportion of viscose fiber,
Surface is without microprotrusion 20.
Embodiment 2:
Form matrix 10 using wood pulp and viscose rayon, the proportion substantially 6:4 of wood pulp and viscose rayon, water-jet at
Type, the 20 diameter 0.3mm of microprotrusion of formation, 20 density of microprotrusion are 25/25 square millimeters, and the villus 30 of texturing structure is wood
Slurry, the length that villus 30 stretches out matrix 10 are greater than 0.4mm, and the length for the stretching matrix 10 which refers to is average length.
Comparative example 4-5:
Using wood pulp+viscose fiber similarly to Example 2, wood pulp is similar to the present embodiment 2 to the proportion of viscose fiber,
Surface has higher base weight with respect to embodiment 2 and comparative example 4 without microprotrusion 20, comparative example 5.
Wherein, water-disintegrable test is carried out using following methods:
(1) sample is pre-processed: according to INDA/EDANA method, sample to be tested is put into 20L water, stirring 30
Second.
(2) being hydrolyzed property is tested: it shakes in case and 2L water (22 ± 3 DEG C of water temperature) is added, slosh frequency to 33rpm, and starting
Case and timing are shaken, record sample is disintegrated the used time, and described disintegrates to isolate first small pieces sample from non-woven fabrics cloth body.
The test method of longitudinal dry tensile strength and lateral dry tensile strength is referred to using " GB/T24218.3-2010 textile is non-woven
Cloth test method third portion: the measurement of ultimate strength and elongation at break " test method, wherein Sample Width be 50mm, folder
Away from 100mm, tensile speed 100mm/min.
Longitudinal wet is strong and laterally wet strong with reference to the survey for using " measurement of GB/T 12914-2008 paper and cardboard tensile strength "
Method for testing, wherein Sample Width is 50mm, and folder is away from being 100mm/min for 50mm tensile speed.
The comparing result of embodiment 1 and comparative example 1, comparative example 2 and comparative example 3 refers to table 1, embodiment 2 and comparative example
4, the comparing result of comparative example 5 refers to table 2.
Table 1
Table 2
| Sample | Embodiment 2 | Comparative example 4 | Comparative example 5 |
| Base weight, g/m2 | 60.2 | 59.2 | 57.1 |
| Matrix 10 forms | Wood pulp+viscose fiber | Wood pulp+viscose fiber | Wood pulp+viscose fiber |
| Water dispersible, s | 590 | 895 | 1066 |
| Longitudinal dry tensile strength, N/m | 813 | 584 | 802 |
| Lateral dry tensile strength, N/m | 362 | 284 | 334 |
| Longitudinal wet tensile strength, N/m | 221 | 172 | 278 |
| Lateral wet tensile strength, N/m | 119 | 109 | 156 |
As known from Table 1, the water dispersible of embodiment 1 is respectively increased compared to comparative example 1, comparative example 2 and comparative example 3
138%, 152%, 177%, and longitudinal dry tensile strength, lateral dry tensile strength and longitudinal wet tensile strength, lateral wet tensile strength in embodiment 1
There is apparent reduction, is still able to satisfy use demand.
As known from Table 2, the water dispersible of embodiment 2 improves 151%, 180% compared to comparative example 4 and comparative example 5, and real
Apply longitudinal dry tensile strength in example 2, lateral dry tensile strength and longitudinal wet tensile strength, there is not apparent reduction in lateral wet tensile strength, still
So it is able to satisfy use demand.The non-woven fabrics of the application has the effect of both water-disintegrable and wet intensity balance；In addition, the nonwoven
Cloth has good loftiness and soft feeling.
In addition, the application also provides a kind of wet tissue of application non-woven fabrics as substrate simultaneously, as be used to wipe buttocks,
The wet tissue of the skin of face et al. uses, in addition, the moistening cleaning tissue that also can be used as around for cleaning closestool uses.In this situation
Under, especially for the non-woven fabrics assign wiping effect, can make non-woven fabric first contain moisture, surfactant, alcohols,
Glycerol etc..After using cleaning solution to soak the non-woven fabrics as product packaging, be not allowed to dry it is i.e. direct carry out it is close
It lists and sells after package dress.It is of course also possible to which the non-woven fabrics is sold with drying regime, buyer can first use water when in use
Or medical fluid non-woven fabrics is soaked after reuse.
The non-woven fabrics for being applied to wet tissue can keep in the wiping operation enough under aqueous moisture state
Wet intensity；In addition, this non-woven fabrics applied to wet tissue in flowing water stream, is easy dispersion；Including the wet of the non-woven fabrics
Towel has good sense of touch, loftiness and soft feeling.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize this
Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field similarly includes in the scope of patent protection of the application.
Claims (10)
1. a kind of non-woven fabrics, which is characterized in that the non-woven fabrics includes:
Matrix, described matrix surface are provided with multiple microprotrusions, have texturing structure in the microprotrusion.
2. non-woven fabrics according to claim 1, which is characterized in that described matrix includes natural fiber and regenerated fiber, institute
The mass ratio for stating natural fiber and the regenerated fiber is 9:1-3:7.
3. non-woven fabrics according to claim 2, which is characterized in that the natural fiber is wood pulp cellulose, and the wood pulp is fine
The length of dimension is 1.5~6.5mm；The regenerated fiber includes the first regenerated fiber and the second regenerated fiber, first regeneration
Fiber is different with the length of second regenerated fiber or shape is different.
4. non-woven fabrics according to claim 3, which is characterized in that the wood pulp cellulose is needlebush wood pulp cellulose.
5. non-woven fabrics according to claim 3, which is characterized in that the length of first regenerated fiber is 3-12mm, institute
The length for stating the second regenerated fiber is 6-20mm.
6. non-woven fabrics according to claim 3, which is characterized in that first regenerated fiber is flat viscose fiber, institute
The second regenerated fiber is stated as round viscose rayon；The length of the flat viscose fiber is 5mm-30mm, and the circle viscose glue is fine
The length of dimension is 4mm-30mm.
7. non-woven fabrics according to claim 1, which is characterized in that the diameter of the microprotrusion is 0.05-2.0mm.
8. non-woven fabrics according to claim 7, which is characterized in that the height of projection of the microprotrusion is less than described matrix
The 70% of height；The height of projection of the microprotrusion is 0.05-2mm；Distribution density of the microprotrusion on described matrix surface
It is 5-40/25 square millimeters；The microprotrusion arranges on described matrix surface in array or the microprotrusion is in described matrix
Random arrangement of surfaces.
9. non-woven fabrics according to claim 1, which is characterized in that the texturing structure includes villus, and the villus includes
Body portion is stretched out, the length for stretching out body portion is greater than or equal to 1mm；The non-woven fabrics it is water-disintegrable 600 seconds with
Under.
10. a kind of wet tissue, which is characterized in that the wet tissue includes such as the described in any item non-woven fabrics of claim 1-9.
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| CN112111993A (en) * | 2020-08-05 | 2020-12-22 | 辽宁森林木纸业有限公司 | High-efficient hot melt cloth |
| WO2021209841A1 (en) * | 2020-04-16 | 2021-10-21 | 3M Innovative Properties Company | Flocked film and method of manufacture of thereof |
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| CN109537168B (en) | 2022-09-13 |
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