CN1090922C - Bundling material for elestic nonwoven fabric cloth and production of same - Google Patents
Bundling material for elestic nonwoven fabric cloth and production of same Download PDFInfo
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- CN1090922C CN1090922C CN 95102764 CN95102764A CN1090922C CN 1090922 C CN1090922 C CN 1090922C CN 95102764 CN95102764 CN 95102764 CN 95102764 A CN95102764 A CN 95102764A CN 1090922 C CN1090922 C CN 1090922C
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Abstract
To obtain nonwoven fabric for a tightening material for clothes having high recovering properties after elongation by treating a specific stretchable sheet used for sleeve openings bottoms, etc., with an adhesive. This tightening material comprises highly stretchable nonwoven fabric obtained by entangling a latently crimpable stretchable fiber web comprising preferably polyester fibers, heating the entangled web, crimping the heated and entangled web into a looped form, providing a stretchable sheet comprising stretchable nonwoven fabric having >=70% elastic recovery ratio after 70% elongation and >=0.1kgf/5cm stress at 10% elongation and applying and coating the resultant stretchable sheet with an adhesive such as natural rubber, NBR, SBR or an acrylic resin. The obtained nonwoven fabric is excellent in fitness and suitably used in a tightening part such as a sleeve opening or a bottom opening, etc.
Description
Technical field
The present invention relates to a kind of elastic non-woven cloth, dress material with tightly restrainting (degree of tightness) material and manufacture method thereof.
Background technology
Up to now, used section's warp-knitted fabric in the spy, and it has been sutured in the interior week or the periphery of the sleeve or the bottom as the cuff or the bottom limit of the sleeve that is used for dress material or the bottom.Decoherence for the cutting face that makes this warp-knitted fabric is unlikely, often need the limit mouth of the coat-sleeve or the clothing bottom is turned up., coat-sleeve mouth or bottom limit must be turned up to the clothing inboard for this reason, be become roughly U word shape, again with the long state of about 2 times of flangings, with the end, limit of the coat-sleeve or the clothing bottom superimposed after, sew up this flanging around.
In the time of on sleeve that tricot is sutured in dress material as cuff or bottom limit mouth or bottom limit, normally one add tensile force in the face of being cut into this warp-knitted fabric cylindraceous, one side is made with sewing machine etc.But its shortcoming is because this warp-knitted fabric is too soft, during stitching flanging and operation all very difficult, processing charges time, cost height.
Have, when sewing machine was sewed up, a part of warp-knitted fabric was cut off by suture needle again, and so-called dropped stitch (reeling off raw silk from cocoons) problem also takes place easily.
On the other hand, existing elastic non-woven cloth, its restorability after elongation may not be abundant, and problem not next to the shin is also arranged after the dress.
Again, iff only being made of elastic non-woven cloth, then when taking, this elastic non-woven cloth is worn and is just had any problem in that vertically also generation is flexible.
The objective of the invention is, provide a kind of easy, inexpensive, next to the shin property (stickiness) excellent, be suitable for doing the elastic non-woven cloth that (degree of tightness) material is tightly restrainted on cuff or bottom limit.Because vertical (warp) of this elastic non-woven cloth is suppressed to elasticity, pass wrist, foot etc. when locating with the fabric clothing of this elastomeric nonwoven, nonwoven is difficult to longitudinal tensile strain, thereby taking convenience, and owing to its horizontal stroke (latitude) to expansion performance, wear very docile; Add this nonwoven and handled rare cloth cover napping, fluffiness with adhesive etc.
Summary of the invention
The present invention is that relevant elastic non-woven cloth, dress material are with tightly restrainting (degree of tightness) material and manufacture method thereof.
The present invention is the downtrod elastic non-woven cloth of relevant longitudinal extension (elasticity), dress material bundling material and manufacture method thereof.Further, the present invention relates to a kind of elastic non-woven cloth of forming by the fleece of round crimped fibre or three-dimensional complexing, particularly, the present invention relates to a kind of its vertically contain one-way fibroreticulate, a kind of to its vertical (warp) to do tissue apposition handle (ス テ ッ チ processings), a kind of its vertical (warp) to do heat pressure adhesive, another is it to be indulged (warp) extend or with elastic non-woven cloth or the dress material bundling material and the manufacture method thereof of adhesive treatment to fleece.
Here said vertical, at its length direction of nonwoven middle finger, in dress material, then refer to the sleeve length direction of cuff; Here said horizontal, in its fabric width direction of nonwoven middle finger, in dress material, then refer to the circumferencial direction of its cuff.
For making elastic non-woven cloth of the present invention or dress material bundling material, or the fleece that will have the round crimped fibre does three-dimensional complexing, then uses adhesive treatment; Or the fleece that will have the potential crimping property fiber does three-dimensional complexing, handles with binding agent after the heat treatment again; Or the fleece of tool potential crimping property fiber done three-dimensional complexing, heat treatment also makes its longitudinal tensile strain; Or the thermoplastic resin melt spinning is directly made the potential crimping property fleece does heat treatment, then handles with adhesive again.
Elastic non-woven cloth of the present invention is suppressed because of its flexible longitudinally (bullet) property, and the elastic recovery after horizontal retractility and the elongation is higher, so be suitable for and make the dress material bundling material, can be used for clothes sleeve, the bottom, neck and cap, gloves etc. tighten the position.
The specific embodiment
Below, the present invention is elaborated.
The invention provides that a kind of its longitudinal elasticity is suppressed, the higher nonwoven of elastic restoration ratio after its transverse elasticity and the elongation, particularly, provide a kind of elastic sheet that will contain the round crimped fibre, the elastic non-woven cloth of handling with adhesive.
Again, elastic non-woven cloth of the present invention is applicable to makes the dress material bundling material, be specially adapted to dress material sleeve, the bottom, neck or cap, gloves etc. tighten the position.
Of the present invention have with bundling material at downtrod elastic non-woven cloth of longitudinal extension and dress material, and for example: be made up of the round crimped fibre, it is the elastic non-woven cloth and the dress material bundling material that are suppressed of retractility longitudinally; Or the fleece of doing three-dimensional complexing is at its elastic non-woven cloth and dress material bundling material of being suppressed of retractility longitudinally.This nonwoven and material also refer to: or vertical and horizontal all have elastic non-woven cloth and the dress material bundling material of the nonwoven of retractility with its longitudinal tensile strain; Or formation in the vertical contains the elastic non-woven cloth and the dress material bundling material of the fiber web layer of one-way arrangement; Or to its elastic non-woven cloth and dress material bundling material of vertically doing the tissue apposition processing or making heat pressure adhesive in the vertical; Or with the elastic non-woven cloth and the dress material bundling material of its fleece longitudinal tensile strain; Or the elastic non-woven cloth that this elastic non-woven cloth is handled with adhesive and dress material are with bundling material etc.
Of the present invention, downtrod in the vertical elastic non-woven cloth of its retractility and dress material can be undertaken by following method with the making of bundling material.For example:
The fleece that will have the round crimped fibre is done three-dimensional complexing, then the method that deals with adhesive again; Or the fleece that will have the potential crimping property fiber is done three-dimensional complexing, the method for handling with binding agent again after the heat treatment; Or the fleece of tool potential crimping property fiber done three-dimensional complexing, heat treatment also makes its method at longitudinal tensile strain; Or the thermoplastic resin melt spinning is directly made the potential crimping property fleece does heat treatment, then the method for handling with adhesive again; Or make it vertically contain the fibroreticulate method of one-way, or it is vertically made the method that tissue apposition is handled; Or vertically make the method for heat pressure adhesive at it; Or fleece is made method of longitudinal tensile strain etc.
Here, so-called tissue apposition is handled and is meant the processing that connects or weave with linear slit.
When carrying out the method for longitudinal tensile strain, heat treatment and elongation can be carried out simultaneously, also can carry out any processing in these both in advance.
The downtrod elastic non-woven cloth of retractility is because of vertically be difficult for elongation when taking, so dress is convenient longitudinally.
Elastic non-woven cloth of the present invention is preferably, for example: handle do acupuncture based on the fleece of potential crimping property fiber; Or do (water acupuncture manipulation) after the complexing with current etc., make it to produce the nonwoven that round curls with methods such as heat treatments again; Or the spun bond nonwoven fabric of forming by elastomers such as polyurethane (resin), with the nonwoven of the melt-blown of adhesive treatment etc.Make with composite spinning method round to occur curl on the nonwoven of spun bond nonwoven fabric, melt-blown, the nonwoven with adhesive treatment also suits again.
Adhesive can use natural rubber, as synthetic rubber such as NBR, SBR, styrene-isoprene-phenylethene, s-B-S, urine gastral cavity elastomers such as (carbamates), synthetic resin such as acrylic acid series, ethylene methyl acrylate, ethylene vinyl acetate or their modifier and composition thereof, preferably rubber-like adhesive.
Again, can use infusion process, spraying, coating process, Decal etc., in Decal, preferably become wire to carry out continuously or discontinuously especially as method with adhesive treatment.
Nonwoven can be used individual layer, also available multiple layer more than two layers, and multiple layer uses and can obtain stronger elasticity.In addition, preferably use at when elongation soft and flexible nonwoven of tool still.
As fiber used in the nonwoven, available synthetic fibers are made main body, also can sneak into natural fiber, regenerated fiber etc., need make electron ray, gamma-ray sterilization treatment with (this nonwoven), and polyester fiber is then more suitable.
Consider that the people understands sweating in the operation, be preferably in the fiber of hygroscopicity such as sneaking into viscose rayon in the nonwoven, good water absorption.
In the present invention, to the retractility of elastic non-woven cloth, the retractility that particularly produces, be to suppress longitudinal extension by suppressing its complexing on vertically to be moved by the round complexing of round crimped fibre.When nonwoven contains the fleece of doing the one-way arrangement in the vertical, then suppressed elongation longitudinally by this fleece; Equally, when when nonwoven is made heat pressure adhesive on vertically, then owing to suppressed complexing longitudinally and move and suppressed to stretch longitudinally; When nonwoven vertically when elongation is handled, disappearance is moved in the complexing on then making vertically, to suppress flexible longitudinally; With the occasion of adhesive, then suppress complexing campaign longitudinally, thereby suppressed to stretch longitudinally by the retractility that complexing produced that integrally suppresses round etc. again.
Elastic non-woven cloth, during in particular as bundling material, the elastic restoration ratio after 70% elongation is preferably in more than 70% on the circumferencial direction of dress material laterally, promptly, is more preferably more than 80%.When this value less than 70% the time, with fist by dress material cuff or during the mouth of bottom limit, can will should mouth place, (dress material) limit draw badly fully, wearing feeling is bad, degraded appearance, thereby undesirable.
The applying of bundling material and sleeve, clothing pendulum etc. can be undertaken by the common adhesive bonding methods such as applying of the fusion of the stitching of sewing machine, ultrasonic wave etc., adhesive etc.
Assay method
Elasticity of elongation rate by JIS-L-1096 (general fabrics method of testing) is a standard, on cupping machine, the test film of wide 5cm is stretched from the draw speed that the some A of distance clamp 10cm sentenced 20cm/ minute, again from being stretched to former clamping 70% B (7cm) at interval, when replying with same speed, invocation point C when stress is zero, length is decided to be L (cm) between C and the A, can calculate elastic restoration ratio after 70% elongation from following formula:
Elastic non-woven cloth of the present invention, as to have suppressed longitudinal extension, when particularly making dress material and using bundling material, because of its longitudinally retractility suppressed, when wrist, foot etc. by the time, nonwoven is difficult for longitudinal tensile strain, so dress makes things convenient for.Again, different with bundling material with the single elastic non-woven cloth clothing material that does not contain adhesive with the elastic non-woven cloth of adhesive treatment, its elongation restorability is good, the stickiness excellence, and owing to used adhesive, the also rare napping of cloth (hair).
In addition, this elastic non-woven cloth, its cutting face can not decoherenced as tricot, needn't flanging, individual layer also can use, with sewing machine, ultrasonic wave, adhesive etc. can be easily with the sleeve and the cuff of dress material, or the bottom and the applying of bottom limit mouth.Compared with in the past cuff or bottom limit mouth, its cutting face is not decoherenced, and does not need the flanging operation, and process is simple, can make things convenient for and the cuff of stickiness of tool excellence or the dress material of bottom limit mouth be provided at low cost.Especially to requiring low cost, effective especially with promptly abandoning dress material.
The dress material that nonwoven of the present invention is suitable for is a lot, specially suitablely be, for example, the used operation of hospital with unlined long gown, isolate a patient with clothes, perform the operation and promptly abandon clothing with usefulness such as cap, shoe covers.Then better as this nonwoven ability electron ray or gamma-ray sterilization processing.
Be depicted as giving an example of embodiment below, but the present invention is not limited to these examples.
Embodiment 1
With normal polyester fiber (2 daniers, 64mm is long) account for 60% and core-sheath-type composite thermoplastic fiber (4 daniers formed by the bi-component of polyesters, 51mm is long) account for 40% evenly mix after, shredding divides comb, make fiber roughly be arranged in unidirectional fibre net (A) along a direction, the overlapping transverse fiber nets (B) that have several layers by 100% polyesters potential crimping property fiber (2 daniers, 51mm is long) composition on this fleece, the lamination ratio is: A: B=1: 3.
Is 50/cm with above-mentioned stratified fiber net with pin density
2After the acupuncture complexing,, make round to occur and curl, vertically add tension force at it simultaneously 200 ℃ of down heating, obtain on fabric width direction tool retractility, Unit Weight is 140g/m
2Nonwoven.
Then, become 20 * 10cm size as long sideline judge, make the cuff of circumference 18cm (LL size with), be sutured on the coat-sleeve with the fabric width direction of this elastic non-woven cloth.
At this moment, compare with section's warp-knitted fabric in the spy, because the stress during in the vertical the elongation of this nonwoven is big, it is superimposed, cutting, the operating characteristics excellence of making etc.
In addition, the as above coat-sleeve cuff of gained, its stickiness is good, and cutting face is not decoherenced, and when taking, because of the unidirectional fibre net suppresses its longitudinal extension generation, so the longitudinal tensile strain of coat-sleeve mouth is few, dress is along sliding, good hand touch, the wrist place is comfortable docile.
Embodiment 2
Making the fleece of being made up of 100% polyesters latent crimp fiber (2 daniers, 51mm is long), is 50/cm with pin density
2After the acupuncture complexing, be heated to 200 ℃ the generation round is curled, obtain 150g/m
2Elastic sheet (card clothing).
Again this thin slice is dipped in the acrylic adhesive, obtains 180g/m after the drying
2Elastic non-woven cloth, vertically do not do at interval sew up to handle at it with not having a PE yarn of retractility again with 5mm.
Secondly, this elastic non-woven cloth of cutting becomes 20 * 20cm size, and it is wide to make double-deck folded one-tenth 10cm at longitudinal length, sews up again, and flanging is sutured on the sleeve as the cuff of circumference 18cm (the LL size is used).
So, it is good to obtain stickiness, and the cuff through the more suitable cunning of inclined to one side knitted fabric is not decoherenced, compared to cutting face.In addition, when taking, because the stitching of being done is handled, its longitudinal extension is suppressed, and seldom to longitudinal tensile strain, dress was suitable sliding when this cuff was taken, good hand touch, and the wrist place is comfortable docile.
Embodiment 3
Make the fleece of forming by 100% polyesters latent crimp fiber (2 daniers, 51mm long), carry out the complexing of water thorn with high-voltage column-like water stream after, be heated to 180 ℃ and make and produce round and curl and obtain 85g/m
2Elastic sheet (card clothing).
Again this thin slice is dipped in the acrylic adhesive, obtains 105g/m after the drying
2Elastic non-woven cloth.
Secondly, this elastic non-woven cloth of cutting becomes 18 * 16cm size, and it is wide to make double-deck folded one-tenth 8cm at longitudinal length, and behind the seam, flanging is sutured on the sleeve as the cuff of circumference 16.5m (the LL size is used) again.
So, it is good to obtain stickiness, and cutting face do not decoherence, than the cuff of the more suitable cunning of warp-knitted fabric.In addition, the people of the thick 18cm of wrist is when taking, because the adhesive effect, its longitudinal extension is suppressed, and dress is suitable sliding, good hand touch, and the wrist place is comfortable docile, and the napping fluffing is also rare.
This elastic non-woven cloth horizontal 70% the elongation after elastic restoration ratio be 86.9%.
Embodiment 4
Making the fleece of being made up of 100% polyesters latent crimp fiber (2 daniers, 51mm is long), is 100/cm with pin density
2After the acupuncture complexing, be heated to 180 ℃ the generation round is curled, obtain 100g/m
2Elastic sheet (card clothing).
This thin slice is dipped in the acrylic adhesive; Obtain 160/m after the drying
2Elastic non-woven cloth.
Secondly, this elastic non-woven cloth of cutting becomes 18 * 10cm size, and as the cuff of circumference 16.5cm (the L size is used), the seam back is promptly abandoned on the sleeve of robe in using.
So, it is good to obtain stickiness, does not decoherence after the cutting, than the cuff of the more suitable cunning of warp-knitted fabric.In addition, when the people of the thick 18cm of wrist took, because the adhesive treatment of being done, its longitudinal extension was suppressed, and dress is suitable sliding, body sense softness, and wrist is comfortable.Rare napping fluffiness.Again, the elastic restoration ratio after 70% of this elastic non-woven cloth, its circumferencial direction elongation is 82.5%.Comparative example 1
Identical with embodiment, making by 100% polyester earlier is the fleece that latent crimp fiber (2 daniers, 51mm is long) is formed, and is 100/cm with pin density
2After the acupuncture complexing, be heated to 180 ℃ and make the curling 100g/m that obtains of generation round
2Elastic sheet (card clothing).
Then, the above-mentioned elastic sheet that does not contain adhesive of cutting becomes 18 * 10cm, and the cuff as circumference 16.5cm (the L size is used) is sutured in promptly abandoning on the sleeve of clothing gown.
The as above cuff of gained, when the people of the thick 18cm of wrist used, because of without adhesive treatment, its longitudinal extension was not suppressed, and coat-sleeve is also to the longitudinally elongation, the dress difficulty, and the elastic restoration ratio after the elongation is low, lacks stickiness when taking.
Embodiment 5
Making polyester is that latent crimp fiber (grow and accounts for 70%, and normal polyester fiber (2 daniers, 64mm is long) accounts for 30% fleece, is 50/cm with pin density by 2 daniers, 51mm
2The acupuncture complexing after, be heated to 200 ℃ and make and produce round and curl and obtain 140g/m
2Fillet clothing.
This card clothing is dipped in the acrylic adhesive, obtains 180g/m after the drying
2Elastic non-woven cloth.
Then, this nonwoven of cutting 20 * 10cm size, the cuff as circumference 18cm (the LL size is used) is sewn on the coat-sleeve.
So, can obtain cutting face do not decoherence, than the cuff of the more suitable cunning of warp-knitted fabric.In addition, wrist slightly for the people of 20cm when taking because through adhesive treatment, its longitudinal extension is suppressed, dress is along sliding, body sense softness, wrist is comfortable.
The elastic restoration ratio of this elastic non-woven cloth after 70% elongation of circumferencial direction is shown as 76.8%.Comparative example 2
Preparation polyesters latent crimp fiber (2 daniers, 51mm is long) accounts for 70% earlier, and normal polyester fiber (2 daniers, 64mm is long) accounts for 30% fleece, is 50/cm with pin density
2After the acupuncture complexing, be heated to 200 ℃ the generation round is curled, obtain 140g/m
2Fillet clothing.
Again this elastical cloth that does not contain adhesive is cut into 20 * 10cm, the cuff as circumference 18cm (the LL size is used) is sewn on the coat-sleeve.
Like this cuff of gained, when wrist was slightly taken for the people of 20cm, because of without adhesive treatment, its longitudinal extension was suppressed, and coat-sleeve is to longitudinal tensile strain, wears difficultly, and the elastic restoration ratio after the elongation is low, the poor adhesion when wearing.
Embodiment 6
Polyolefin (polypropylene) spun bond nonwoven fabric to 135 of heating tool latent crimp characteristic ℃ makes round to occur and curl, and obtains 75g/m
2Elastic sheet.Be impregnated in again in the urea methane series adhesive (urethanes), obtain 95g/m after the drying
2Elastic non-woven cloth.
Use this elastic non-woven cloth cutting, when being sewn into cap, cutting is not decoherenced, retractility is also because of adhesive is suppressed longitudinally, cap is worn with along sliding, the elastic restoration ratio after the elongation is big, the applying comfortableness that tool is extremely excellent.
Claims (14)
1. elastic non-woven cloth, it is characterized in that, the longitudinal extension of described nonwoven is suppressed, described longitudinal extension inhibition obtains by nonwoven is carried out following more than one processing: described nonwoven vertically contains unidirectional fleece at it, described nonwoven is done to sew up on it is vertical and is handled, described nonwoven is made heat pressure adhesive and is handled on it is vertical, the fleece of described nonwoven on it is vertical done elongation and handled, and described nonwoven is handled with adhesive.
2. elastic non-woven cloth as claimed in claim 1 is characterized in that described nonwoven is made up of the round crimped fibre.
3. elastic non-woven cloth as claimed in claim 1 is characterized in that described nonwoven is made up of the fleece of doing three-dimensional complexing.
4. elastic non-woven cloth as claimed in claim 1 is characterized in that described adhesive has elasticity.
5. a purposes of forming as each described elastic non-woven cloth of claim 1-4 is characterized in that described nonwoven is used for as dress material bundling materials such as cuff, clothing bottom limit, gloves or caps.
6. the manufacture method of an elastic non-woven cloth, the longitudinal extension of described elastic non-woven cloth is suppressed, and it is characterized in that, and the inhibition system of described longitudinal extension does three-dimensional complexing by the fleece that will have the round crimped fibre, handles with adhesive then.
7. the manufacture method of an elastic non-woven cloth, the longitudinal extension of described elastic non-woven cloth is suppressed, and it is characterized in that, the inhibition system of described longitudinal extension does three-dimensional complexing by the fleece that will have the potential crimping property fiber, heat treatment is handled with adhesive then.
8. the manufacture method of an elastic non-woven cloth, the longitudinal extension of described elastic non-woven cloth is suppressed, and it is characterized in that, and the inhibition system of described longitudinal extension does three-dimensional complexing by the fleece that will have the potential crimping property fiber, heat treatment and elongation longitudinally.
9. the manufacture method of an elastic non-woven cloth, the longitudinal extension of described elastic non-woven cloth is suppressed, it is characterized in that the inhibition system of described longitudinal extension handles with adhesive then by the potential crimping property fleece of thermoplastic resin melt spinning gained is done heat treatment.
10. the manufacture method of an elastic non-woven cloth, the longitudinal extension of described elastic non-woven cloth is suppressed, and it is characterized in that, and the inhibition system of described longitudinal extension is by making described nonwoven vertically contain unidirectional fleece at it.
11. the manufacture method of an elastic non-woven cloth, the longitudinal extension of described elastic non-woven cloth is suppressed, and it is characterized in that, the inhibition system of described longitudinal extension handles by sewing up at vertical work of described nonwoven.
12. the manufacture method of an elastic non-woven cloth, the longitudinal extension of described elastic non-woven cloth is suppressed, and it is characterized in that, the inhibition system of described longitudinal extension is handled by the heat pressure adhesive of vertically doing at described nonwoven.
13. the manufacture method of an elastic non-woven cloth, the longitudinal extension of described elastic non-woven cloth is suppressed, and it is characterized in that, the inhibition system of described longitudinal extension handles by described fleece being made longitudinal tensile strain.
14. the manufacture method as each the described elastic non-woven cloth in the claim 6,7 and 9 is characterized in that, wherein said adhesive has elasticity.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62182/94 | 1994-03-08 | ||
| JP06218194A JP3288844B2 (en) | 1994-03-08 | 1994-03-08 | Clothing fastening material and method of manufacturing the same |
| JP62181/94 | 1994-03-08 | ||
| JP6218294 | 1994-03-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1112816A CN1112816A (en) | 1995-12-06 |
| CN1090922C true CN1090922C (en) | 2002-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95102764 Expired - Fee Related CN1090922C (en) | 1994-03-08 | 1995-03-08 | Bundling material for elestic nonwoven fabric cloth and production of same |
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| Country | Link |
|---|---|
| CN (1) | CN1090922C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107811678A (en) * | 2017-09-26 | 2018-03-20 | 奥美医疗用品股份有限公司 | A kind of low wadding nerve surgery piece and preparation method thereof |
| JP7140774B2 (en) * | 2017-11-10 | 2022-09-21 | 株式会社クラレ | Fiber structure and manufacturing method thereof |
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1995
- 1995-03-08 CN CN 95102764 patent/CN1090922C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1112816A (en) | 1995-12-06 |
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