CN108677540A - A kind of preparation method of quickly unidirectional water guide non-woven cloth - Google Patents
A kind of preparation method of quickly unidirectional water guide non-woven cloth Download PDFInfo
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- CN108677540A CN108677540A CN201810526065.8A CN201810526065A CN108677540A CN 108677540 A CN108677540 A CN 108677540A CN 201810526065 A CN201810526065 A CN 201810526065A CN 108677540 A CN108677540 A CN 108677540A
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- woven cloth
- water guide
- water
- unidirectional
- quickly
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/61—Polyamines polyimines
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
- D06M23/16—Processes for the non-uniform application of treating agents, e.g. one-sided treatment; Differential treatment
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a kind of preparation methods of quickly unidirectional water guide non-woven cloth, include the following steps：Using polypropylene non-woven fabric as base material, pyrocatechol and polyamine class from by way of being copolymerized, in Tri(Hydroxymethyl) Amino Methane Hydrochloride buffer solution, pyrocatechol with higher hydrophilic ability is subjected to hydrophilic modifying in polypropylene nonwoven matrix unilateral side with polyamine class crosslinking copolymerization, then prepares the quick water guide polypropylene nonwoven with hydrophobe dissymmetrical structure by washing drying.Non-woven cloth obtained by the present invention directly uses the method that pyrocatechol and polyamine class are copolymerized to carry out unilateral hydrophilic modifying to non-woven cloth, it can realize the directional water guiding performance in thickness (vertical) direction, with shirtsleeve operation, higher production stability facilitates large-scale production to prepare, and raw material of the present invention is easy to get, of low cost, easy to operate, production stability is high, and environment is not destroyed, the present invention has a good application prospect.
Description
Technical field
The present invention relates to water guide functional material and its preparation and applied technical field, more particularly to a kind of quickly unidirectional water guide
The preparation method of non-woven cloth.
Background technology
In the modern life, with the continuous improvement of people's living standards, for paper diaper, the disposable product such as sanitary napkin
The requirement of comfort level is higher and higher, and one-way wet-guide performance is added in these products and is increasingly seen by people with meeting the needs of people
Weight.And non-woven cloth due to its production process can directly by the interting of fiber, tangle to form fabric, efficient, flow is short, at
The features such as this is low, is highly suitable as the raw material of disposable product, so by one-way wet-guide performance for grinding on non-woven fabrics
Study carefully and causes extensive concern.
For existing scholar by one-way wet-guide performance applications in non-woven cloth, patent 200910239652.X discloses one at present
The manufacturing process of kind unidirectional water guide pure cotton hydro-entangled non-woven fabric, by spray coating method or plain net print process, by hydrophobing agent spraying or
It is printed on pure cotton spunlace non-woven material single side, moisture can be made to form hydrophobe gradient by carrying out unilateral hydrophobically modified
It is conducted from a hydrophobic side to hydrophilic side, realizes directional water guiding.Patent 201210057127.8 discloses a kind of pure cotton and unidirectionally leads
The preparation method of water Functional Nonwoven Fabrics uses atomization Microspheres Technique, and in the case where refusing atomization microballon environment, pure cotton is non-knits for processing
Cloth is made, makes water repellent from another side is penetrated on one side, to form hydrophobic gradient, generates siphon effect, realize unidirectional water guide
Property.The production technology required precision of both the above patent is higher, and entire technological process is relatively long and use contains fluorine or silicon
Finishing agent, have certain destruction to environment.
Invention content
In order to solve the existing problems, the purpose of the present invention is to provide a kind of preparations of quickly unidirectional water guide non-woven cloth
Method can realize the directional water guiding performance in thickness (vertical) direction, have shirtsleeve operation, higher production stability,
Large-scale production is facilitated to prepare, and raw material of the present invention is easy to get, of low cost, easy to operate, production stability is high, and to environment
It does not destroy, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides the following technical solutions：
A kind of preparation method of quickly unidirectional water guide non-woven cloth, includes the following steps：
Step 1：By non-woven cloth EtOH Sonicate oscillation cleaning, the organic impurities on surface is removed, is carried out at drying later
Reason；
Step 2：The Tri(Hydroxymethyl) Amino Methane Hydrochloride buffer solution of 0.01mol/L is prepared, and adjusts its pH to 7.5-
9.5；
Step 3：By mass fraction be 0.1-0.8wt% pyrocatechols and mass fraction is that 0.1-0.8wt% polyamine classes are mixed
Conjunction is put into Tri(Hydroxymethyl) Amino Methane Hydrochloride buffer solution, is configured to modified solution；
Step 4：Non-woven cloth after being dried in step 1 is placed at the modified solution surface prepared and carries out unilateral leaching
Bubble, soaking time be 6~for 24 hours, take out the non-woven cloth, wash, remove non-woven cloth on unreacted monomer and homopolymer
And impurity；The non-woven cloth with unidirectional quickly water conductivity function of single side hydrophilic modifying is obtained after taking out drying；
Step 5：The modification of obtained quickly unidirectional water guide non-woven cloth obtains contact angle≤40 ° of hydrophilic modifying side,
Contact angle >=135 ° of unmodified side；Along hydrophobic vapor transfer rate >=200000g/m towards hydrophilic surface2/ h, unidirectional delivery index >=
1500, liquid water dynamic transmits composite index >=1.0, and water pressure resistance is 0mm water columns；Along the hydrophilic vapor transfer rate towards hydrophobic surface≤
10000g/m2/ h, unidirectional delivery index≤100, liquid water dynamic transmit composite index≤0.5, water pressure resistance >=35mm water columns；
Preferably, the dosage of the non-woven cloth in step 1 is the 0.1-0.5wt% of modified solution liquid weight in step 2.
Preferably, the non-woven cloth is polypropylene, grammes per square metre 50g/m2-100g/m2, thickness is 120 μm -500 μm, water
Contact angle >=135 °.
Preferably, the pyrocatechol monomer is catechol, dopamine, L-3,4 dihydroxyphenylalanine, tannic acid.
Preferably, the poly- amine monomers are diethylenetriamine, triethylene tetramine, tetraethylenepentamine, polyethylene polyamine, gather
Aziridine.
Compared with prior art, the beneficial effects of the invention are as follows：
The preparation method of quickly unidirectional water guide non-woven cloth proposed by the present invention, obtained non-woven cloth directly use youngster
Tea phenols and the method for polyamine class copolymerization carry out unilateral hydrophilic modifying to non-woven cloth, can realize and determine in thickness (vertical) direction
To water conductivity function, there is shirtsleeve operation, higher production stability large-scale production to be facilitated to prepare, and raw material of the present invention
It is easy to get, of low cost, easy to operate, production stability is high, and is not destroyed to environment, and therefore, the present invention has good
Application prospect can be applied to civil use material health, the fields such as clothes base material and medical material.
Specific implementation mode
The embodiment of the present invention is will be detailed below, however, the embodiment of the present invention is not limited thereto.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts,
It shall fall within the protection scope of the present invention.
Embodiment 1
A kind of preparation method of quickly unidirectional water guide non-woven cloth, specific implementation step are as follows：
Step 1：By 1g polypropylene nonwovens (grammes per square metre 70g/m2, 265 μm of thickness) and EtOH Sonicate oscillation treatment is used, it removes
The organic impurities on surface is removed, carries out drying and processing later；
Step 2：On the basis of the gross weight of mixed and modified liquid, by the dopamine of 0.2wt%, the polyethyleneimine of 0.2wt%
It is 8.5 to be dissolved in pH, in the Tri(Hydroxymethyl) Amino Methane Hydrochloride buffer solution of a concentration of 0.01mol/L, is configured to 200ml modifications
Solution, will be above-mentioned that polypropylene nonwoven is placed at mixed and modified liquid surface, unidirectionally impregnates 12h；
Step 3：The polypropylene nonwoven is taken out, is washed with deionized, is removed not anti-on polypropylene nonwoven
The monomer and homopolymer and impurity answered, single side hydrophilic modifying is obtained after dry has the non-woven of unidirectional quickly water conductivity function
Cloth；
Step 4：Prepared quick unidirectional water guide polypropylene nonwoven is surveyed according to national standard GB/T21655.2-2009
Examination is 1500 along the hydrophobic unidirectional delivery index towards hydrophilic surface, and it is 1.2 that liquid water dynamic, which transmits composite index,；Along it is hydrophilic towards
The unidirectional delivery index 88 of hydrophobic surface, it is 0.4 that liquid water dynamic, which transmits composite index,.Just according to national standard GB/T2704.2-2009
It is 280000g/m that agar diffusion method, which tests the non-woven cloth along the hydrophobic vapor transfer rate towards hydrophilic surface,2/ h, along hydrophilic towards the saturating of hydrophobic surface
Moisture is 9000g/m2/h.It is 0 along the hydrophobic water pressure resistance towards hydrophilic surface, is 35mm water along the hydrophilic water pressure resistance towards hydrophobic surface
Column.
Embodiment 2
A kind of preparation method of quickly unidirectional water guide non-woven cloth, specific implementation step are as follows：
Step 1：By 2g polypropylene nonwovens (grammes per square metre 80g/m2, 295 μm of thickness) and EtOH Sonicate oscillation treatment is used, it removes
The organic impurities on surface is removed, carries out drying and processing later；
Step 2：On the basis of the gross weight of mixed and modified liquid, by the catechol of 0.4wt%, the divinyl three of 0.2wt%
It is 8.0 that amine, which is dissolved in pH, in the Tri(Hydroxymethyl) Amino Methane Hydrochloride buffer solution of a concentration of 0.01mol/L, is configured to 300ml and changes
Property solution, above-mentioned polypropylene nonwoven is placed at mixed and modified liquid surface, 10h is unidirectionally impregnated；
Step 3：The polypropylene nonwoven is taken out, is washed with deionized, is removed on the polypropylene nonwoven
Unreacted monomer and homopolymer and impurity；The non-woven cloth is taken out, is washed, unreacted monomer on non-woven cloth is removed
With homopolymer and impurity, the non-woven cloth with unidirectional quickly water conductivity function of single side hydrophilic modifying is obtained after taking out drying；
Step 4：Prepared quick unidirectional water guide polypropylene nonwoven is surveyed according to national standard GB/T21655.2-2009
Examination is 1650 along the hydrophobic unidirectional delivery index towards hydrophilic surface, and it is 1.35 that liquid water dynamic, which transmits composite index,；Along hydrophilic surface
To the unidirectional delivery index 94 of hydrophobic surface, it is 0.35 that liquid water dynamic, which transmits composite index,.According to national standard GB/T2704.2-2009
It is 240000g/m that positive agar diffusion method, which tests the non-woven cloth along the hydrophobic vapor transfer rate towards hydrophilic surface,2/ h, along hydrophilic towards hydrophobic surface
Vapor transfer rate is 7500g/m2/h.It is 0 along the hydrophobic water pressure resistance towards hydrophilic surface, is 44mm along the hydrophilic water pressure resistance towards hydrophobic surface
Water column.
Embodiment 3
A kind of preparation method of quickly unidirectional water guide non-woven cloth, specific implementation step are as follows：
Step 1：By 5g polypropylene nonwovens (grammes per square metre 60g/m2, 235 μm of thickness) and EtOH Sonicate oscillation treatment is used, it removes
The organic impurities on surface is removed, carries out drying and processing later；
Step 2：On the basis of the gross weight of mixed and modified liquid, by the dopamine of 0.1wt%, the polyethylene polyamine of 0.4wt%
It is 9.0 to be dissolved in pH, in the Tri(Hydroxymethyl) Amino Methane Hydrochloride buffer solution of a concentration of 0.01mol/L, is configured to 500ml modifications
Solution, will be above-mentioned that polypropylene nonwoven is placed at mixed and modified liquid surface, unidirectionally impregnates 8h；
Step 3：The polypropylene nonwoven is taken out, is washed with deionized, is removed on the polypropylene nonwoven
Unreacted monomer and homopolymer and impurity；The non-woven cloth is taken out, is washed, unreacted monomer on non-woven cloth is removed
With homopolymer and impurity, the non-woven cloth with unidirectional quickly water conductivity function of single side hydrophilic modifying is obtained after taking out drying；
Step 4：Prepared quick unidirectional water guide polypropylene nonwoven is surveyed according to national standard GB/T21655.2-2009
Examination is 1600 along the hydrophobic unidirectional delivery index towards hydrophilic surface, and it is 1.4 that liquid water dynamic, which transmits composite index,；Along it is hydrophilic towards
The unidirectional delivery index 98 of hydrophobic surface, it is 0.45 that liquid water dynamic, which transmits composite index,.Just according to national standard GB/T2704.2-2009
It is 220000g/m that agar diffusion method, which tests the non-woven cloth along the hydrophobic vapor transfer rate towards hydrophilic surface,2/ h, along hydrophilic towards the saturating of hydrophobic surface
Moisture is 6000g/m2/h.It is 0 along the hydrophobic water pressure resistance towards hydrophilic surface, is 50mm water along the hydrophilic water pressure resistance towards hydrophobic surface
Column.
In conclusion the preparation method of quickly unidirectional water guide non-woven cloth proposed by the present invention, obtained non-woven cloth
It directly uses the method that pyrocatechol and polyamine class are copolymerized to carry out unilateral hydrophilic modifying to non-woven cloth, can realize and (hang down in thickness
There is directly) the directional water guiding performance in direction shirtsleeve operation, higher production stability large-scale production to be facilitated to prepare, and
Raw material of the present invention is easy to get, of low cost, easy to operate, and production stability is high, and is not destroyed to environment, therefore, the present invention
It has a good application prospect, can be applied to civil use material health, the fields such as clothes base material and medical material.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of preparation method of quickly unidirectional water guide non-woven cloth, which is characterized in that include the following steps：
Step 1：By non-woven cloth EtOH Sonicate oscillation cleaning, the organic impurities on surface is removed, carries out drying and processing later；
Step 2：The Tri(Hydroxymethyl) Amino Methane Hydrochloride buffer solution of 0.01mol/L is prepared, and adjusts its pH to 7.5-9.5；
Step 3：By mass fraction be 0.1-0.8wt% pyrocatechols and mass fraction is that the mixing of 0.1-0.8wt% polyamine classes is put
Enter in Tri(Hydroxymethyl) Amino Methane Hydrochloride buffer solution, is configured to modified solution；
Step 4：Non-woven cloth after being dried in step 1 is placed at the modified solution surface prepared and carries out unilateral immersion, leaching
Steep the time be 6~for 24 hours, take out the non-woven cloth, wash, remove unreacted monomer and homopolymer and miscellaneous on non-woven cloth
Matter；The non-woven cloth with unidirectional quickly water conductivity function of single side hydrophilic modifying is obtained after taking out drying；
Step 5：The modification of obtained quickly unidirectional water guide non-woven cloth obtains contact angle≤40 ° of hydrophilic modifying side, does not change
Contact angle >=135 ° of property side；Along hydrophobic vapor transfer rate >=200000g/m towards hydrophilic surface2/ h, unidirectional delivery index >=1500,
Liquid water dynamic transmits composite index >=1.0, and water pressure resistance is 0mm water columns；Along hydrophilic vapor transfer rate≤10000g/ towards hydrophobic surface
m2/ h, unidirectional delivery index≤100, liquid water dynamic transmit composite index≤0.5, water pressure resistance >=35mm water columns.
2. a kind of preparation method of quickly unidirectional water guide non-woven cloth as described in claim 1, which is characterized in that in step 1
Non-woven cloth dosage be step 2 in modified solution liquid weight 0.1-0.5wt%.
3. a kind of preparation method of quickly unidirectional water guide non-woven cloth as described in claim 1, which is characterized in that described non-to knit
It is polypropylene, grammes per square metre 50g/m to make cloth2-100g/m2, thickness is 120 μm -500 μm, water contact angle >=135 °.
4. a kind of preparation method of quickly unidirectional water guide non-woven cloth as described in claim 1, which is characterized in that the catechu
Phenolic monomers are catechol, dopamine, L-3,4 dihydroxyphenylalanine, tannic acid.
5. a kind of preparation method of quickly unidirectional water guide non-woven cloth as described in claim 1, which is characterized in that the polyamine
Class monomer is diethylenetriamine, triethylene tetramine, tetraethylenepentamine, polyethylene polyamine, polyethyleneimine.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110284261A (en) * | 2019-07-10 | 2019-09-27 | 武汉纺织大学 | A kind of preparation method of reverse osmosis compound nonwoven cloth |
| CN112030563A (en) * | 2020-07-21 | 2020-12-04 | 西安工程大学 | Preparation method of special-shaped cross-section fiber non-woven fabric with one-way moisture-conducting function |
| CN115058785A (en) * | 2022-06-29 | 2022-09-16 | 华中科技大学 | Radiation refrigeration composite fiber and fabric for water collection and preparation method thereof |
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| CN112030563A (en) * | 2020-07-21 | 2020-12-04 | 西安工程大学 | Preparation method of special-shaped cross-section fiber non-woven fabric with one-way moisture-conducting function |
| CN115058785A (en) * | 2022-06-29 | 2022-09-16 | 华中科技大学 | Radiation refrigeration composite fiber and fabric for water collection and preparation method thereof |
| CN115058785B (en) * | 2022-06-29 | 2024-01-26 | 华中科技大学 | Radiation refrigeration composite fiber and fabric for water collection and preparation method thereof |
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