CN102691169A - China-hemp spunlaced non-woven fabric and preparation method thereof - Google Patents
China-hemp spunlaced non-woven fabric and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a China-hemp spunlaced non-woven fabric and a preparation method of the fabric. The preparation method comprises the steps of mixing China-hemp fibers and at least one of long stapled cotton fibers and viscose, and then carrying out the steps of coarse opening, fine opening, air pressure cotton feeding, carding, lapping, drafting, spunlace and drying in sequence so as to obtain the China-hemp spunlaced non-woven fabric. The China-hemp spunlaced non-woven fabric product, provided by the invention, has the advantages of good physical property, better air permeability, smaller thickness and quantification, larger breaking force and better wear resistance, and is suitable for being used as liquid filtration, oil filtration and wiping articles.
Description
Technical field
The present invention relates to a kind of Chinese fiber crops hydro-entangled non-woven fabric and preparation method thereof.
Background technology
Market survey through early stage; Utilize in the technology that fiber does non-weaving cloth existing; A kind of is the paper technology exploitation material that utilizes wet-laying; Like Populus deltoides slurry filter paper and glass fiber filter paper, a kind of in addition technology is exactly to adopt machinery to become water acupuncture manipulation and needle point method in the network method to produce non-weaving cloth.When utilizing glass fibre to do filtering material; Earlier glass fibre is cut into isometric 3mm; Adopt water as medium then, utilize wet laying process can produce glass fiber filter material, the maximum characteristics of glass filter paper be soft, the aperture is little, filtering accuracy is high; Thickness and quantitatively also less has material property and application preferably.
Chinese fiber crops are called hemp again, are the human natural fabrics that is used for fabric the earliest; China-hemp fibers has many superperformance characteristics, such as, soft comfortable, the clear performances such as nice and cool, antibiotic health care, environmental protection, uvioresistant of passing through; Therefore; Can consider to adopt china-hemp fibers and long-staple cotton fiber, utilize existing non-interlaced fabric equipment and technology, exploitation Chinese fiber crops hydro-entangled non-woven fabric.Utilizing china-hemp fibers to produce hydro-entangled non-woven fabric, also is expansion and in-depth to Chinese fiber crops Application Areas.
Summary of the invention
The purpose of this invention is to provide a kind of Chinese fiber crops hydro-entangled non-woven fabric and preparation method thereof.
The preparation method of a kind of Chinese fiber crops hydro-entangled non-woven fabric provided by the present invention comprises the steps:
With at least a mixing the in china-hemp fibers and long-staple cotton fiber and the viscose, feed cotton, combing, lapping, drawing-off, water thorn and drying steps through thick shredding, smart shredding, air pressure successively then and promptly get the numb hydro-entangled non-woven fabric of the said Chinese.
Among the above-mentioned preparation method, the average length of said china-hemp fibers can be 8 ~ 92mm, specifically can be 27.88mm or 90mm, and fineness can be 3.35 ~ 19.55 μ m, specifically can be 3.35 μ m or 14.31 μ m; The average length of said long-staple cotton fiber and viscose can be 20 ~ 51mm, specifically can be 34.12mm or 34.06mm, and fineness can be 10.12 ~ 17.92 μ m, specifically can be 11.645 μ m or 14.75 μ m.
Among the above-mentioned preparation method, ratio of quality and the number of copies at least a in said china-hemp fibers and long-staple cotton fiber and the viscose can be 4: (1 ~ 3) specifically can be 3:2 or 4:1.
Among the above-mentioned preparation method; Before said thick shredding step; Said method also comprises the step of said china-hemp fibers, long-staple cotton fiber and/or viscose being carried out artificial shredding and artificial removal of impurities respectively, with all even non-weaving cloth preferably of the quality of guaranteeing follow-up one-tenth net; Then will be through at least a mixing the in the china-hemp fibers of artificial shredding and artificial removal of impurities and long-staple cotton fiber and the viscose; In said mixed process, to add wet process, in order to prevent to produce static and flyings.
Among the above-mentioned preparation method; After said thick shredding step; Said method also comprises the blended fiber after thick shredding is added to the step of carrying out the secondary shredding in the cotton blender machine of big storehouse, mainly is to utilize the wind of blower fan that blended fiber is carried out the shredding second time.
Among the above-mentioned preparation method; Said combing step is carried out in the mixed and disorderly carding machine of two pass husband, mainly is the fiber that the shredding that obtains mixes is carded to single fiber condition, in order better to carry out lapping; Simultaneously, also be in order to form three-dimensional state, the mixed and disorderly fibre web of arranging.
Among the above-mentioned preparation method, said lapping step adopts the mode of cross lapping, and this mode can improve the operating efficiency of carding machine, increases the width of product, thereby the applicability of product is obviously improved.
Among the above-mentioned preparation method; Said drafting step is carried out in 3 draw zones; Drafting multiple in each draw zone all can be 2 ~ 6, as 2 or 5.1, mainly is in order originally to be transversely arranged fibre web to vertical arrangement; Form preferably in length and breadth to powerful requirement, thereby satisfy the powerful requirement on using.
Among the above-mentioned preparation method, said method also comprises carries out dry step to said Chinese fiber crops hydro-entangled non-woven fabric, because in the water thorn step; The existence of large quantity of moisture is arranged,, remove redundant moisture so need carry out drying; Make material conveniently to use, satisfy instructions for use.
Among the above-mentioned preparation method, said water thorn step can be carried out in the plain net spun-laced machine; Each plain net spun-laced machine can comprise 2 water jets.
Among the above-mentioned preparation method, said method comprises 2 road water thorn steps; In the 1st road water thorn step, the pressure of the 1st water jet can be 10 ~ 20bar, specifically can be 10bar or 15bar, and the pressure of the 2nd water jet can be 65 ~ 70bar, specifically can be 65bar or 70bar; In the 2nd road water thorn step, the pressure of the 1st water jet can be 10 ~ 20bar, specifically can be 15bar or 20bar, and the pressure of the 2nd water jet can be 80 ~ 90bar, specifically can be 80bar or 90bar.
The present invention also further provides the Chinese fiber crops hydro-entangled non-woven fabric by method for preparing; Said hydro-entangled non-woven fabric quantitatively be 130 ~ 150g/m
2
The invention provides a kind of hydro-entangled non-woven fabric that utilizes china-hemp fibers production and preparation method thereof; The physical property of the hydro-entangled non-woven fabric product of the present invention's preparation is good; Gas permeability is also better, thickness and quantitatively less, and ultimate strength is bigger; ABRASION RESISTANCE is also better, is suitable as liquid filtering, oil filtration, Wiping article.
Description of drawings
Fig. 1 prepares the flow chart of the method for Chinese fiber crops hydro-entangled non-woven fabric for the present invention.
The specific embodiment
Employed experimental technique is conventional method like no specified otherwise among the following embodiment.
Used material, reagent etc. like no specified otherwise, all can obtain from commercial sources among the following embodiment.
China-hemp fibers used among the following embodiment is available from the holding Co., Ltd of Chinese fiber crops industrial investment; Used viscose and long-staple cotton fiber are available from Shandong Hua Le group.
Embodiment 1, preparation Chinese fiber crops hydro-entangled non-woven fabric
The flow chart of present embodiment is as shown in Figure 1.
(1) knit preceding preparation: select china-hemp fibers and long-staple cotton fiber for use, the china-hemp fibers average length is 27.88mm, and the long-staple cotton fiber average length is 34.12mm; The china-hemp fibers average fineness is 14.31 μ m; The long-staple cotton fiber average fineness is 14.75 μ m, and china-hemp fibers was 6KG when sample was produced, and long-staple cotton is 4KG; So blending ratio is 3:2, initially quantitatively be predefined for 150g/m
2
(2) opening picking: at first china-hemp fibers and long-staple cotton fiber are carried out artificial shredding, respectively the fibre bag that the bag shape is arranged in china-hemp fibers and the long-staple cotton fiber is torn apart with hand earlier, tear evenly as far as possible and accomplish not damage fiber; Because the color of china-hemp fibers is light yellow; Find that impurity wherein is less, do not have basically that feel is also soft; And the impurity of long-staple cotton fiber is more; Process discovery in manual shredding wherein has branches and leaves, cottonseed, impurity such as broken seed, fiber mote and hard goods, need get rid of timely, guarantees into all even non-weaving cloth preferably of quality of net; After removing impurity, can mix, manual earlier the mixing, mix as far as possible, this mainly carries out artificial shredding in the cotton storage tank of a rectangle that has defeated lace curtaining, in the shredding process, need dewing, in order to prevent to produce static and flyings; Mixed fiber is added in the thick opener mixes, and make and do not have that the big cotton-wool of shredding and fiber block dissociates, mix, abundant shredding by hand; Fiber through after the thick shredding begins to get into big storehouse cotton blender machine, and the capacity of Chu Miancang is bigger, mainly is to utilize the wind of blower fan that fiber is carried out the shredding second time; Next fiber begins to get into refined opener, mainly is fiber is compared meticulous shredding, and the fiber opening of preparatory shredding is become fubril shape or bundle fiber shape, for the combing processing of back and become net ready.
(3) combing: utilize constant volume type air pressure feed cotton machine will the above-mentioned blended fiber that obtains evenly, stablize to such an extent that be sent in the mixed and disorderly carding machine of two pass husband and carry out combing; Adopting the mixed and disorderly roller of two pass husband to carry out combing, mainly is that the fiber that front operation shredding mixes is carded to single fiber condition, in order better to carry out the staggered form lapping, simultaneously, also is in order to form three-dimensional state, the mixed and disorderly fibre web of arranging.
(4) become net: the mode that adopts cross lapping;
The control that fibre web is quantitative: in becoming network process, that just begun to expect quantitatively is 150g/m
2, in just beginning the lapping process, through each fibre web of weighing quantitatively is 9g/m
2So the lapping number of plies that adopts is 15, so the quantitative of 15 fibre webs is 135g/m at this moment
2, the back quantitatively can increase in the water thorn process again, so adopt 15 lapping numbers of plies.
(5) drawing-off: adopt three cylinders, form three draw zones, the drafting multiple of each draw zone is 5.1, mainly is in order originally to be transversely arranged fibre web to vertical arrangement, and to form preferably in length and breadth to powerful requirement, thereby satisfies the powerful requirement on using.
(6) water thorn: adopt the flat screen type spun-laced machine, comprise two water jets; Adopt the twice water jet process, wherein, in the 1st road water jet process, the pressure of the 1st water jet is 15bar, and the pressure of the 2nd water jet is 70bar; In the 2nd road water jet process, the pressure of the 1st water jet is 15bar, and the pressure of the 2nd water jet is 90bar.
(7) drying: owing in the water thorn process, the existence of large quantity of moisture is arranged, so need carry out drying, remove redundant moisture, make material conveniently to use, satisfy instructions for use, wherein the dry temperature of control is 20 ℃.
The properties of product test:
The main performance of the Chinese fiber crops hydro-entangled non-woven fabric of this embodiment preparation is: thickness: 1.173mm, quantitatively: 152.73g/m
2, air penetrability: 88.5864mm/s, its longitudinally physical performance index be: ultimate strength: 247.52N; Extension at break: 65.663mm, elongation at break: 328.319%, rupture time: 39.397S; Disconnected brute force: the 96.62N that takes off; The disconnected percentage elongation that takes off: 344.589%, disconnected elongation: the 68.917mm, work to break: 8.912J of taking off; Horizontal physical performance index is: ultimate strength: 152.65N, extension at break: 103.629mm, elongation at break: 518.149%; Rupture time: 62.177s, disconnected brute force: the 60.274N that takes off, the disconnected percentage elongation that takes off: 542.699%; Disconnected elongation: the 108.539mm, work to break: 8.067J of taking off.
Test process and result are following:
(1) thickness measuring,
Tester: the digital fabric thickness appearance of YG141N type
Unit is mm, and ballast is 100g, and test result is as shown in table 1.
The thickness measuring result of table 1 Chinese fiber crops hydro-entangled non-woven fabric
(2) quantitative test
Tester: electronic balance, unit are g/m
2, test result is as shown in table 2.
The quantitative test result of table 2 Chinese fiber crops hydro-entangled non-woven fabric
(3) air penetrability test
The computermatic air permeability tester of tester: YG461E, unit are mm/s,
Test condition: sample pressure reduction is 100Pa, 3# nozzle, sample area 20cm
2, test result is as shown in table 3.
The air penetrability test result of table 3 Chinese fiber crops hydro-entangled non-woven fabric
(4) powerful and elongation test
Tester: YG065 tensometer, the test of galley proof method
Test condition: specimen length 20mm, draw speed 100mm/min, pre-tension 100cN.It vertically reaches horizontal physical property test result shown in table 4, table 5, and it is vertical, the rational comparative result of transverses is as shown in table 6.
Vertical physical property test result of table 4 Chinese fiber crops hydro-entangled non-woven fabric
The horizontal physical property test result of table 5 Chinese fiber crops hydro-entangled non-woven fabric
Vertical, the rational comparative result of transverses of table 6 Chinese fiber crops hydro-entangled non-woven fabric
Embodiment 2, preparation Chinese fiber crops hydro-entangled non-woven fabric
All identical among preparation technology and the embodiment 1, difference is: long-staple cotton fiber is replaced by viscose, and its average length is 34.06mm, and fineness is 11.645 μ m; The average length of china-hemp fibers is 90mm, and fineness is 3.35 μ m; The ratio of quality and the number of copies of china-hemp fibers and viscose is 4:1; Drafting step is carried out in 3 draw zones, and the drafting multiple in each draw zone is 2; In the water thorn step, adopt the twice water jet process, wherein, in the 1st road water jet process, the pressure of the 1st water jet is 10bar, and the pressure of the 2nd water jet is 65bar; In the 2nd road water jet process, the pressure of the 1st water jet is 20bar, and the pressure of the 2nd water jet is 80bar.
Chinese fiber crops/viscose glue the hydro-entangled non-woven fabric of preparation, its performance of products such as following table 7 ~ table 12, the method for testing of each performance and testing equipment are with identical among the embodiment 1.
The thickness measuring result of table 7 Chinese fiber crops/viscose glue hydro-entangled non-woven fabric
The quantitative test result of table 8 Chinese fiber crops/viscose glue hydro-entangled non-woven fabric
The air penetrability test result of table 9 Chinese fiber crops/viscose glue hydro-entangled non-woven fabric
Vertical physical property test result of table 10 Chinese fiber crops/viscose glue hydro-entangled non-woven fabric
The horizontal physical property test result of table 11 Chinese fiber crops/viscose glue hydro-entangled non-woven fabric
The portraitlandscape physical property of table 12 Chinese fiber crops/viscose glue hydro-entangled non-woven fabric relatively
Claims (10)
1. the preparation method of a Chinese fiber crops hydro-entangled non-woven fabric comprises the steps:
With at least a mixing the in china-hemp fibers and long-staple cotton fiber and the viscose, feed cotton, combing, lapping, drawing-off, water thorn and drying steps through thick shredding, smart shredding, air pressure successively then and promptly get the numb hydro-entangled non-woven fabric of the said Chinese.
2. preparation method according to claim 1 is characterized in that: the average length of said china-hemp fibers is 8mm ~ 92mm, and fineness is 3.35 μ m ~ 19.55 μ m; The average length of said long-staple cotton fiber or said viscose is 20mm ~ 51mm, and fineness is 10.12 μ m ~ 17.92 μ m.
3. preparation method according to claim 1 and 2 is characterized in that: at least a ratio of quality and the number of copies is 4 in said china-hemp fibers and long-staple cotton fiber and the viscose: (1 ~ 3).
4. according to arbitrary described preparation method among the claim 1-3, it is characterized in that: before said thick shredding step, said method also comprises the step of said china-hemp fibers, long-staple cotton fiber and/or viscose being carried out artificial shredding and artificial removal of impurities respectively; Then will be through at least a mixing the in the china-hemp fibers of artificial shredding and artificial removal of impurities and long-staple cotton fiber and the viscose; In said mixed process, to add wet process.
5. according to arbitrary described preparation method among the claim 1-4, it is characterized in that: after said thick shredding step, said method also comprises the blended fiber after thick shredding is added to the step of carrying out the secondary shredding in the cotton blender machine of big storehouse.
6. according to arbitrary described preparation method among the claim 1-5, it is characterized in that: said combing step is carried out in the mixed and disorderly carding machine of two pass husband; Said lapping step adopts the mode of cross lapping; Said drafting step is carried out in 3 draw zones, and the drafting multiple in each draw zone is 2 ~ 6.
7. according to arbitrary described preparation method among the claim 1-6, it is characterized in that: said method also comprises carries out dry step to said Chinese fiber crops hydro-entangled non-woven fabric; The temperature of said drying is 20 ℃ ~ 30 ℃.
8. according to arbitrary described preparation method among the claim 1-7, it is characterized in that: said water thorn step is carried out in the plain net spun-laced machine; Each plain net spun-laced machine comprises 2 water jets.
9. preparation method according to claim 8 is characterized in that: said method comprises 2 road water thorn steps; In the 1st road water thorn step, the pressure of the 1st water jet can be 10bar ~ 20bar, and the pressure of the 2nd water jet can be 65bar ~ 70bar; In the 2nd road water thorn step, the pressure of the 1st water jet can be 10bar ~ 20bar, and the pressure of the 2nd water jet can be 80bar ~ 90bar.
10. the Chinese fiber crops hydro-entangled non-woven fabric that arbitrary said method prepares among the claim 1-9; The quantitative of said hydro-entangled non-woven fabric is 130g/m
2~ 150g/m
2
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| CN103696145A (en) * | 2013-12-10 | 2014-04-02 | 吴江市品信纺织科技有限公司 | Sweat-absorbent non-woven fabric |
| CN104207737A (en) * | 2014-08-13 | 2014-12-17 | 上海锵达纺织有限公司 | China-hemp non-woven cleaning cloth and production process thereof |
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| CN110079934A (en) * | 2019-06-03 | 2019-08-02 | 湖南瑞亚高科集团有限公司 | A kind of medical non-woven cloth |
| CN110409056A (en) * | 2019-06-19 | 2019-11-05 | 东华大学 | A kind of Cellulose acetate non-woven fabrics filter stick substrate industrialization production method |
| CN111593479A (en) * | 2020-06-04 | 2020-08-28 | 浙江天晟信息技术有限公司 | Plant fiber spunlace non-woven fabric |
| CN111996635A (en) * | 2020-08-19 | 2020-11-27 | 山东维蕾克纺织服饰有限公司 | Processing method of semi-worsted pure rabbit wool yarn |
| WO2022118999A1 (en) * | 2020-12-02 | 2022-06-09 | 백일기 | Method for producing non-woven cotton fabric in batch process comprising spunlacing method |
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