CN109112722A - A kind of preparation method of loft nonwoven cloth - Google Patents
A kind of preparation method of loft nonwoven cloth Download PDFInfo
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- CN109112722A CN109112722A CN201811016920.7A CN201811016920A CN109112722A CN 109112722 A CN109112722 A CN 109112722A CN 201811016920 A CN201811016920 A CN 201811016920A CN 109112722 A CN109112722 A CN 109112722A
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- nonwoven cloth
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- loft nonwoven
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Classifications
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- 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
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/32—Side-by-side structure; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a kind of preparation methods of loft nonwoven cloth, the following steps are included: the blending and modifying of (1) PP, PE component: being modified with double screw extruder to primary PP or PE material, nonionic surfactant and nucleating agent is added, blending granulation is carried out, bicomponent fibers component A is obtained；(2) using primary material PP or PE as component B；Component A and component B are put into the spout of two single-screw machines of two-component spinning machine respectively, nozzle die prepares core-skin or side-by-side bicomponent fiber, controls 80~280 DEG C of hot blast temperature, curls two components in fiber.The present invention passes through addition nonionic surfactant and nucleating agent, make the PP+/PP or PE+/PE of two-component that there is different crystallization temperature and speed, in process, especially when fiber after leaving die head nozzle is by hot wind drawing-off, cooling, cause the high crimp of fiber between two components with different crystallization temperature and speed, the fluffy degree for improving web, enhances flexibility, obtains excellent handle.
Description
Technical field
The present invention relates to superfine fibre nonwoven cloth fields, more particularly to a kind of preparation method of loft nonwoven cloth.
Background technique
Non-woven fabrics is the major class textile except woven and knitting, since its molding is fast, high production efficiency, product tool
There are a degree of flexibility, homogeneity and intensity.Non-woven fabrics after the process such as needle thorn, spun lacing or hot rolling is widely
For paper handkerchief, cleansing tissue, filtering material and sanitary care article, medical supplies etc..For example, being urinated as disposable baby
Cloth (paper diaper), it is desirable that the nonwoven cloth cover for being close to skin is soft and fluffy, and existing good comfort also has good adsorptivity
Energy.Generally, non-woven fabrics and its fiber are to be prepared by thermoplastic macromolecule by melt spinning.Typical spunbond nonwoven
Cloth is thermoplastic material by single-screw machine feeding filament spinning component (cabinet), and the fiber for leaving nozzle is stretched by high-speed flow,
Last randomly networking is in reception device.
As the improvement of people's living standards, the performance requirement to bonded fabric product is also higher and higher, existing one pack system is spun
Viscous or melt spraying non-woven fabrics are increasingly difficult to meet the requirements.Ideal spunbonded materials will have good physical property, especially soft
Soft, intensity and absorption property.
In order to meet the application demand of non-woven fabrics, the preparation method of bicomponent fibre non-woven fabrics is gradually applied to produce.Area
Not in mixing bicomponent fibers, signified bicomponent fibers refer to that section is arranged side by side or skin-core structure bicomponent fibers herein, such as
Shown in Figure 1A, 1B.
Patent CN01803879.4 provides that a kind of subdivision is special and high uniformity polyester bicomponent fibers；Patent
CN201380059922.3 utilizes the thermoplastic polyurethane of two components, wherein a component contains partial cross-linked dose, (two component fusing points are poor
10 DEG C), it is prepared for bicomponent fibers；CN201280059833.4 is prepared for bicomponent fibers using ethylene and copolymer；
CN03814823.4 provides polypropylene terephthalate bicomponent fibre technique, prepares parallel type or eccentric core-skin type
Bicomponent fibre；CN03803681.9 gives eccentric polyester-polyethylene bicomponent fibre；Patent
CN200680042397.4 gives a kind of high crimping polyester bicomponent fibers, wherein a component includes polyalkylene repetitive unit
Polymer polyatomic alcohol.Its corresponding homofil of the bicomponent fibers that all these methods obtain is compared and improves fiber
Fluffy degree and flexibility.
Polyolefin, mainly PP, PE fabric nonwoven cloth yield are big, and market application is wide, especially with medical and health application
Amount is big.With the improvement of living standards, people put forward higher requirements the performance of product.Although PP, PE resin double-component are fine
The opposite segmental defect for compensating for its homofil of dimension, is still difficult to meet the requirement in market.Therefore it is fine that PP, PE two-component are improved
The fluffy degree and flexibility of dimension are still non-woven fabrics scientific research and industrial circle facing challenges.
Summary of the invention
The object of the present invention is to provide a kind of preparation methods of loft nonwoven cloth to make fibre by the way that function additive is added
Tie up high crimp, networking non-woven fabrics has structure, the good feel of high loft.
To achieve the above object, technical solution provided by the invention is as follows:
A kind of preparation method of loft nonwoven cloth, comprising the following steps:
(1) blending and modifying (PP+, PE+) of PP, PE component: being modified primary PP or PE material with double screw extruder,
Nonionic surfactant and nucleating agent is added, carries out blending granulation (slice), obtains bicomponent fibers component A；
(2) using primary material PP or PE as component B；Component A and component B are put into two-component spinning machine respectively, and (melt-blown is spun
Viscous configuration) two single-screw machines spout, nozzle die uses core-skin or collateral fiber cross sectional shape (as shown in Figure 1A, 1B)
Bicomponent fibers are prepared, control 80~280 DEG C of hot blast temperature, shrink the crystallization that different rates occur for two components in fiber, from
And it curls.
The preparation method of loft nonwoven cloth of the present invention, wherein core-skin bicomponent fibers are that B component is table
Skin, the bicomponent fibers that component A is inner core；Side-by-side bicomponent fiber is component A and B component bicomponent fibers arranged side by side.
The preparation method of loft nonwoven cloth of the present invention, wherein in step (1), the non-ionic surface is living
Property agent includes one of following components or a variety of: aliphatic ester, the ether of fatty alcohol, monoglyceride, poly-alkoxyl alcohol ether, poly- alkane
Oxygroup alcohol ester, silicone esters, polysaccharide esters and their compound；The ester, ether compound at least contain 8 carbon or more
Alkyl carbon chain.
The preparation method of loft nonwoven cloth of the present invention, wherein the additional amount of the surfactant is 0.5
~5%, preferably 1.5~3.5%.
The preparation method of loft nonwoven cloth of the present invention, wherein in step (1), the nucleating agent include with
One of lower component is a variety of: including carboxylic acid and its metallic salt；Benzylidene sorbose alcohols；Diaryl phosphin metal salt
Class；It polymerize species；And talcum, phosphoric acid.
The preparation method of loft nonwoven cloth of the present invention, wherein the carboxylic acid and its metallic salt include oneself
Diacid, adipic acid aluminium, sodium benzoate, adipic acid sodium, tert-butylbenzene aluminium triformate, Potassium Benzoate, lithium benzoate, sodium naphtholate.
The preparation method of loft nonwoven cloth of the present invention, wherein the benzylidene sorbose alcohols includes
Benzylidene D-sorbite, dibenzylidene sorbitol and its derivative；The diaryl phosphin metallic salt includes 2,2 methylenes
Bis- (4,6 t-butyl phenol) the phosphine sodium salts (NA-11, NA-21) of base；The polymerization species include poly- 3- methyl 1- butylene, polyethylene
Basic ring alkane, polyvinyl cyclosilane.
The preparation method of loft nonwoven cloth of the present invention, wherein the additional amount of the nucleating agent be 0.1~
1%, preferably 0.1~0.3%.
Loft nonwoven cloth made from preparation method using any loft nonwoven cloth of the present invention.
Compared with the existing technology, protrusion effect of the invention is:
The method of the present invention has the PP+/PP or PE+/PE of two-component by addition nonionic surfactant and nucleating agent
There are different crystallization temperature and speed, in process, fiber is by hot wind drawing-off, cooling especially after leaving die head nozzle
When, there is different crystallization temperature and speed to cause the high crimp of fiber between two components, to improve the fluffy of web
Degree, enhances flexibility, obtains excellent handle.
Illustrate with reference to the accompanying drawing and specific embodiment makees the preparation method of loft nonwoven cloth of the present invention
It further illustrates.
Detailed description of the invention
Figure 1A is the schematic cross-section of side-by-side bicomponent fiber；
Figure 1B is the schematic cross-section of core-skin bicomponent fibers；
Fig. 2A is the stereoscan photograph that the fiber of embodiment 1 is curled；
Fig. 2 B is the stereoscan photograph of the one-component meltblown fibers of primary pure PP material；
Fig. 3 A is the stereoscan photograph that the fiber of embodiment 2 is curled；
Fig. 3 B is the stereoscan photograph of the one-component meltblown fibers of primary pure PP material.
Specific embodiment
Embodiment 1
A kind of preparation method of loft nonwoven cloth, comprising the following steps:
(1) blending and modifying of PP component: primary PP material is modified with double screw extruder, 2.0% weight ratio is added
Nonionic surfactant (XL-70, BASF), 0.1% weight ratio adipic acid, carry out blending granulation (slice), obtain
Bicomponent fibers component A；Wherein, primary PP material is Sinopec product: YS830.
(2) using primary material PP as component B；Component A and component B are put into two-component spinning machine respectively, and (melt-blown or spunbond are matched
Set) two single-screw machines spout, carry out the spunlaid process of spunbond process, nozzle die uses collateral fiber section shape
Shape prepares bicomponent fibers, controls 110 degree of hot blast temperature, shrinks the crystallization that different rates occur for two components in fiber, thus
It curls.Due to the addition of surfactant and nucleating agent, make in fiber process, when being stretched by hot wind, generates not
Symmetric shrinkage, fiber curl (such as Fig. 2A).As control, Fig. 2 B gives the one-component meltblown fibers of primary pure PP material.
It is final to obtain side-by-side bicomponent PP+/PP spun-bonded fibre net, grammes per square metre 25g/m2。
Embodiment 2
A kind of preparation method of loft nonwoven cloth, comprising the following steps:
(1) blending and modifying of PP component: primary PP material is modified with double screw extruder, 2.5% weight ratio is added
Nonionic surfactant (Ethylhexyl stearate EHMS, Hai'an national power chemical industry), 0.2% weight ratio benzylidene sorbierite
Millad 3905 (Milliken, the U.S.), carries out blending granulation (slice), obtains bicomponent fibers component A；Wherein, primary PP material
For Sinopec product: PPH-M18.
(2) using primary material PP as component B；Component A and component B are put into two-component spinning machine respectively, and (melt-blown or spunbond are matched
Set) two single-screw machines spout, carry out the spunlaid process of spunbond process, nozzle die uses collateral fiber section shape
Shape prepares bicomponent fibers, controls 110 degree of hot blast temperature, shrinks the crystallization that different rates occur for two components in fiber, thus
It curls.Due to the addition of surfactant and nucleating agent, make in fiber process, when being stretched by hot wind, generates not
Symmetric shrinkage, fiber curl (such as Fig. 3 A).As control, Fig. 3 B gives the one-component meltblown fibers of primary pure PP material.
It is final to obtain side-by-side bicomponent PP+/PP spun-bonded fibre net, grammes per square metre 25g/m2。
Embodiment 3
A kind of preparation method of loft nonwoven cloth, comprising the following steps:
(1) blending and modifying of PE component: primary PE material is modified with double screw extruder, 2.5% weight ratio is added
Nonionic surfactant (Ethylhexyl stearate EHMS, Hai'an national power chemical industry), 0.2% weight ratio benzylidene sorbierite
Millad 3905 (Milliken, the U.S.), carries out blending granulation (slice), obtains bicomponent fibers component A；Wherein, primary PE material
For Sinopec (Yanshan Petrochemical) product: 5000S.
(2) using primary material PE as component B；Component A and component B are put into two-component spinning machine respectively, and (melt-blown or spunbond are matched
Set) two single-screw machines spout, carry out the spunlaid process of spunbond process, nozzle die uses collateral fiber section shape
Shape prepares bicomponent fibers, controls 100 degree of hot blast temperature, shrinks the crystallization that different rates occur for two components in fiber, thus
It curls.Due to the addition of surfactant and nucleating agent, make in fiber process, when being stretched by hot wind, generates not
Symmetric shrinkage, fiber are curled.
It is final to obtain side-by-side bicomponent PE+/PE spun-bonded fibre net, grammes per square metre 28g/m2。
Embodiment 4
A kind of preparation method of loft nonwoven cloth, comprising the following steps:
(1) blending and modifying of PE component: primary PE material is modified with double screw extruder, 2.0% weight ratio is added
Nonionic surfactant (XL-70, BASF), 0.1% weight ratio adipic acid, carry out blending granulation (slice), obtain
Bicomponent fibers component A；Wherein, primary PE material is South Korea's Samsung product: Y910A.
(2) using primary material PE as component B；Component A and component B are put into two-component spinning machine respectively, and (melt-blown or spunbond are matched
Set) two single-screw machines spout, carry out the spunlaid process of spunbond process, nozzle die uses collateral fiber section shape
Shape prepares bicomponent fibers, controls 100 degree of hot blast temperature, shrinks the crystallization that different rates occur for two components in fiber, thus
It curls.Due to the addition of surfactant and nucleating agent, make in fiber process, when being stretched by hot wind, generates not
Symmetric shrinkage, fiber are curled.
It is final to obtain side-by-side bicomponent PE+/PE spun-bonded fibre net, grammes per square metre 28g/m2。
For prominent beneficial effects of the present invention, following comparative example experiment has also been carried out.
Comparative example 1
Previous bicomponent fibers loft non-woven cloth mainly uses two kinds of different materials, such as PP/PE, production method
It mainly comprises the steps that
Component A:PP and component B:PE are put into two single-screw machines of two-component spinning machine (melt-blown or spunbond configuration) respectively
Spout, carry out the spunlaid process of spunbond process, nozzle die is fine using collateral fiber cross sectional shape preparation two-component
Dimension controls 100 degree of hot blast temperature, shrinks the crystallization that different rates occur for two components in fiber, to curl.
It is final to obtain side-by-side bicomponent PP/PE spun-bonded fibre net, grammes per square metre 34g/m2。
Comparative example 2
Component A:PP and component B:PE are put into two single-screw machines of two-component spinning machine (melt-blown or spunbond configuration) respectively
Spout, carry out the spunlaid process of spunbond process, nozzle die is fine using collateral fiber cross sectional shape preparation two-component
Dimension controls 110 degree of hot blast temperature, shrinks the crystallization that different rates occur for two components in fiber, to curl.
It is final to obtain side-by-side bicomponent PP/PE spun-bonded fibre net, grammes per square metre 38g/m2。
The index of evaluation fiber crimp elasticity has crimp percent, crimp recovery, crimp elasticity, crimp extension rate, curling
Modulus etc..The current national standard for being used to measure fiber crimp performance has GB/T6506-2001, and " synthetic fibers textured filament is crispaturaed
Method for testing performance " and GB/T 14338-1993 " synthetic staple crimp property test method ".It will be made from embodiment 1-4
Non-woven fabrics is crimped the evaluation of elasticity with non-woven cloth made from comparative example 1-2, carries out performance comparison, see the table below 1.
Table 1
From the Experimental comparison results of upper table:
The grammes per square metre of non-woven fabrics provided in an embodiment of the present invention is significantly lower than comparative example, more below general one pack system non-woven fabrics
Grammes per square metre (usual 50-70g/m2).Crispation number, crimp extension rate and the response rate of gained bicomponent fibers non-woven fabrics are superior to compare
The non-woven fabrics of example.In high-loft, the material that non-woven fabrics provided by the invention had not only greatlyd save, but also provide good
Feel.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (9)
1. a kind of preparation method of loft nonwoven cloth, which comprises the following steps:
(1) blending and modifying of PP, PE component: primary PP or PE material is modified with double screw extruder, nonionic table is added
Face activating agent and nucleating agent carry out blending granulation, obtain bicomponent fibers component A；
(2) using primary material PP or PE as component B；Component A and component B are put into two single-screw machines of two-component spinning machine respectively
Spout, nozzle die prepare bicomponent fibers using core-skin or collateral fiber cross sectional shape, control hot blast temperature 80~280
DEG C, curl two components in fiber.
2. the preparation method of loft nonwoven cloth according to claim 1, it is characterised in that: core-skin bicomponent fibers are
The bicomponent fibers that B component is epidermis, component A is inner core；Side-by-side bicomponent fiber is component A and B component two-component arranged side by side
Fiber.
3. the preparation method of loft nonwoven cloth according to claim 2, it is characterised in that: described non-in step (1)
Ionic surface active agent includes one of following components or a variety of: aliphatic ester, the ether of fatty alcohol, monoglyceride, poly- alcoxyl
Base alcohol ether, poly-alkoxyl alcohol ester, silicone esters, polysaccharide esters and their compound；The ester, ether compound at least contain one
Alkyl carbon chains more than 8 carbon of item.
4. the preparation method of loft nonwoven cloth according to claim 3, it is characterised in that: the surfactant
Additional amount is 0.5~5%, preferably 1.5~3.5%.
5. the preparation method of loft nonwoven cloth according to claim 4, it is characterised in that: in step (1), it is described at
Core agent includes one of following components or a variety of: including carboxylic acid and its metallic salt；Benzylidene sorbose alcohols；Diaryl
Phosphine metallic salt；It polymerize species；And talcum, phosphoric acid.
6. the preparation method of loft nonwoven cloth according to claim 5, it is characterised in that: the carboxylic acid and its metal
Salt includes adipic acid, adipic acid aluminium, sodium benzoate, adipic acid sodium, tert-butylbenzene aluminium triformate, Potassium Benzoate, lithium benzoate, naphthalene
Phenol sodium.
7. the preparation method of loft nonwoven cloth according to claim 6, it is characterised in that: the benzylidene sorb
Glycitols includes benzylidene D-sorbite, dibenzylidene sorbitol and its derivative；The diaryl phosphin metallic salt
Including 2,2 di-2-ethylhexylphosphine oxides (4,6 t-butyl phenol) phosphine sodium salt；The polymerization species include poly- 3- methyl 1- butylene, polyvinyl
Cycloalkanes, polyvinyl cyclosilane.
8. the preparation method of loft nonwoven cloth according to claim 7, it is characterised in that: the addition of the nucleating agent
Amount is 0.1~1%, preferably 0.1~0.3%.
9. loft nonwoven cloth made from the preparation method using any loft nonwoven cloth of claim 1-8.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095230A (en) * | 2020-08-15 | 2020-12-18 | 福建冠泓工业有限公司 | Super-soft super-fluffy spun-bonded non-woven fabric and preparation method thereof |
| CN112281305A (en) * | 2020-10-16 | 2021-01-29 | 广东佳丝维新材料科技有限公司 | Preparation method of high-elasticity hot air non-woven material with good recovery |
| CN113622091A (en) * | 2021-07-31 | 2021-11-09 | 百事基材料（青岛）股份有限公司 | Bi-component macrobiosis spun-bonded non-woven fabric containing plant active ingredients and preparation method thereof |
| CN114364834A (en) * | 2019-07-11 | 2022-04-15 | 东丽尖端素材株式会社 | Crimped composite fiber nonwoven fabric, and laminate and article thereof |
| CN114622344A (en) * | 2021-11-04 | 2022-06-14 | 浙江安顺化纤有限公司 | Dry preparation method of non-woven fabric and application of non-woven fabric in facial mask |
| CN115247318A (en) * | 2021-12-22 | 2022-10-28 | 青岛大学 | PP/PE double-component fiber non-woven fabric and preparation method thereof |
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| CN114364834A (en) * | 2019-07-11 | 2022-04-15 | 东丽尖端素材株式会社 | Crimped composite fiber nonwoven fabric, and laminate and article thereof |
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| CN112281305A (en) * | 2020-10-16 | 2021-01-29 | 广东佳丝维新材料科技有限公司 | Preparation method of high-elasticity hot air non-woven material with good recovery |
| CN113622091A (en) * | 2021-07-31 | 2021-11-09 | 百事基材料（青岛）股份有限公司 | Bi-component macrobiosis spun-bonded non-woven fabric containing plant active ingredients and preparation method thereof |
| CN114622344A (en) * | 2021-11-04 | 2022-06-14 | 浙江安顺化纤有限公司 | Dry preparation method of non-woven fabric and application of non-woven fabric in facial mask |
| CN114622344B (en) * | 2021-11-04 | 2023-08-25 | 浙江安顺化纤有限公司 | Dry preparation method of non-woven fabric and application of non-woven fabric in mask |
| CN115247318A (en) * | 2021-12-22 | 2022-10-28 | 青岛大学 | PP/PE double-component fiber non-woven fabric and preparation method thereof |
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