WO2018105918A2 - Method for producing fibrous web, fibrillar fiber, or nonwoven fabric, and fibrous web, fibrillar fiber, or nonwoven fabric produced thereby - Google Patents

Method for producing fibrous web, fibrillar fiber, or nonwoven fabric, and fibrous web, fibrillar fiber, or nonwoven fabric produced thereby Download PDF

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Publication number
WO2018105918A2
WO2018105918A2 PCT/KR2017/013018 KR2017013018W WO2018105918A2 WO 2018105918 A2 WO2018105918 A2 WO 2018105918A2 KR 2017013018 W KR2017013018 W KR 2017013018W WO 2018105918 A2 WO2018105918 A2 WO 2018105918A2
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WO
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Prior art keywords
method
fiber
web
fibrous web
nonwoven fabric
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PCT/KR2017/013018
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French (fr)
Korean (ko)
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WO2018105918A3 (en
Inventor
윤혜성
김진수
Original Assignee
주식회사 삼양바이오팜
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Priority to KR10-2016-0164254 priority
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Publication of WO2018105918A2 publication Critical patent/WO2018105918A2/en
Publication of WO2018105918A3 publication Critical patent/WO2018105918A3/en

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Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01GPRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/42Non-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
    • D04H1/425Cellulose series
    • D04H1/4258Regenerated cellulose series
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/44Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/44Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H13/00Other non-woven fabrics
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06CFINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C15/00Calendering, pressing, ironing, glossing or glazing textile fabrics

Abstract

The present invention relates to a method for producing fibrous webs, fibrillar fibers, or nonwoven fabrics, and fibrous webs, fibrillar fibers, or nonwoven fabrics produced thereby and, particularly, to fibrillar fibers or nonwoven fabrics for a hemostatic agent or an anti-adhesion agent.

Description

Fiber web, the fiber or fibril method for producing a non-woven fabric and thus the fiber web, fibrillated fibers, or a nonwoven fabric prepared by the

The present invention provides a fiber using the woven fabric web (fibrous web), the fibril-shaped fiber (fibrillar fiber) or a method for producing a nonwoven fabric (nonwoven fabric), and so producing a fibrous web, the fibril-shaped fiber, or nonwoven fabric, in particular , to a fibril-shaped fiber, or nonwoven fabric of the hemostatic agent or the adhesion agent application.

Non-woven fabric refers to a fabric product made by forming a tangled to the sheet (cloth) shaped web (web) in accordance with a variety of fibers without going through the processes such as continuous shooting, weaving, knitting mutual characteristics, and mechanically coupled to, physical methods.

Non-woven fabric manufacturing process is generally made of a three-step process such as the web bonding → machining → web formation. Web forming process is by dispersing the fibers into a uniform thickness as possible on the conveyor stack is a step to create a web. Web bonding process is a process in which the fiber is given not to separate web have adequate strength to form a stable tangled whatever bond the fiber assembly. Processing step is to complete the non-woven fabric through the dyeing or processing necessary for the end use.

Non-woven fabric is separated by a wet method and a dry method depending on a web forming method. Dry and wet is divided by haenghaneunga the formation of a web in a dry state haenghaneunga in the wet state. That is, in a dry process to form a fiber web with the air condition, the wet process is by dispersing the fibers in a liquid to obtain a web. Therefore, the method for forming the web is being distinguished by the matrix, that is the air and the liquid to disperse the fibers. On the other hand, the nonwoven fabric according to the type of fiber pray divided into a long-fiber nonwoven fabric and the short-fiber nonwoven fabric.

The oxidized regenerated cellulose (Oxidized Regenerated Cellulose, ORC) is a well-known absorbent hemostatic materials. The oxidized cellulose number of methods for forming various types of hemostatic agents that are based on (Oxidized Cellulose, OC) into powder, fabric, nonwoven fabric, knitted fabric, different forms and combinations are known. Bleeding lesion dressing that is currently available, include knitted or non-woven fabric comprising an oxidized regenerated cellulose (ORC).

Korea Patent Publication No. 2013-0101109 is a) providing a cellulose yarn (yarn) having a filament of at least twist (twist); Forming a yarn, a single feed circular knitting cellulose cloth (multi-yarn, single feed circular knitted cellulose fabric) - b) having at least a multi-twist; c) the cellulose cloth Scar wooring (scouring); d) oxidizing said cloth Scar wooring; e) step of the oxidized fabric softening (pliabilizing); f) Crimp a step of about 2.0 dog crimps / ㎝ (5 dogs Crimp / in) to about 4.7 more crimp / ㎝ (cloth, the flexibility to form a continuous strand of 12 crimps / in.) knitted off (de-knitting) .; Further comprising: g) a length of cutting said continuous strand to form the staple about 3.8 to about 10.8 ㎝ (about 1½ to about 4¼ inches); h) a step of carding the batt (carded batt) carding said staple; i) discloses a method of manufacturing the needle punching the carded batt of (needle-punching), and entangling the nonwoven material absorbable hemostatic dressing, comprising the steps of forming a non-woven felt of a single layer in three dimensions. However, the above method is the release knitted fabric after softening the oxide comprises the steps of cutting to form staple fibers of a particular length, a long and complex manufacturing process problems.

An object of the present invention, short fibers or a sheet that can simplify the process by applying a woven fabric immediately carding process fiber web, and not on the fibers, wherein the fibril production of a fiber or nonwoven fabric, and that the produced fiber web, fibrillated to provide a fiber or nonwoven fabric, in particular, possible fibril-shaped fiber, or nonwoven fabric used as a hemostatic agent or the adhesion agent application.

According to an aspect of the invention, there is provided a method of manufacturing, the fibrous web comprises carded (carding) of the woven fabric.

According to another aspect of the invention, comprising the step of calendering (calendaring) the produced fiber web in accordance with the method, there is provided a manufacturing method of the fibril fiber.

In accordance with another aspect of the invention, the method comprising combining a fibrous web produced in accordance with the method; The method of manufacturing a nonwoven fabric comprising fibers and a combined step of calendering the web is provided.

In accordance with another aspect of the invention, each fiber is produced by the method the web, is provided with a fibrillated fiber and a nonwoven fabric.

In accordance with the present invention, there is an advantage capable of simplifying the manufacturing process of the stage by applying just a carded non-woven fabric process fiber or long-fiber fibrous web, fibrillated fibers, or the nonwoven fabric.

The present invention will be described below in detail.

In the present invention, the term "textile (fabric)" is a concept including a knitted fabric (knit).

In the present invention, the woven fabric is a fibrous web, used in the manufacture of a fiber or nonwoven fibrillated is not a short-fiber or long-fiber.

In a preferred embodiment, the fabrics may be oxidized regenerated cellulose (Oxidized Regenerated Cellulose, ORC), oxidized cellulose (Oxidized Cellulose, OC), or a combination thereof.

In the present invention, the oxidizing (regeneration) cellulose refers to the oxidized (play) cellulose having a carboxyl group (-COOH). Carboxyl group content in the oxidizing (regeneration) of cellulose (i.e., oxidation) may be 13-24% by weight. According to one embodiment of the invention, also an example of 13-oxide (playback) 17% by weight cellulose is enhanced adhesion prevention effect desired in the side, and Fig exceeds 17% by weight of oxide to 24% by weight, for example oxidized 18 to the oxidation (playback) 24% by weight cellulose is preferred in terms of enhancing the hemostatic effect.

It can be prepared according to the oxidized (play) cellulose is known in the art methods and, for example, U.S. Patent No. 7,279,177 No., U.S. Patent No. 3.3642 million arc, U.S. Patent No. 5,180,398 No., U.S. Patent No. 5,134,229 No., U.S. Pat. No. 7,645,874 claim, U.S. Patent, but can be prepared according to the method disclosed No. 5,914,003 or the like, not particularly limited to these.

In a preferred embodiment, a tensile strength of the fabric is 4kgf to 25kgf, more preferably 6kgf to 20kgf. The tensile strength of the fabric may ttil a powder shape without carding this is lower than the level of contrast, higher than do not cut properly there can be problems occur when parts are not aligned carded.

Method of manufacturing a fibrous web according to the invention comprises the step of carding (carding) of the woven fabric.

The carding step, carded in a carding batt to the woven fabric (carded batt). In one embodiment of the carding process, the woven fabric is put into a machine having a rotating cylinder having a fine metal tooth (teeth), is "brushing" over the cylindrical parts of the teeth. Then, the layered a "brushing" the web to the batt on the take-up roller. Batt may be from about 5 to 10 layers, in particular from about 7 layers of carded web.

In one embodiment, the density of the fibrous web made in accordance with the present invention is preferably from 10g / m 2 to 60g / m 2, more preferably from 15g / m 2 to 30g / m 2. If the density of the fiber web is lower than the level may be a problem with the cohesion of the web it does not maintain a certain shape is weak, and too bulky than high contrast, can be a problem that may occur when disconnecting Web Web stack.

Method of manufacturing a fibrillated fiber according to the present invention includes the step of the manufactured fiber web calendering (calendaring).

In one embodiment, the density of the fibrillated fiber is made according to the present invention is preferably 100g / m 2 to 600g / m 2, more preferably from 150g / m 2 to 300g / m 2. If the density of the fibril fiber is lower than the level of the hemostatic effect it may be lower, and high cohesion decreases may occur during separation of the web hemostasis

In a preferred embodiment, the fibril-shaped fiber is intended to be used as a hemostatic agent or the adhesion agent, a hemostatic agent, particularly.

Method of manufacturing a nonwoven fabric according to the present invention, combining the manufactured fiber web; And a bonding step of calendering the fibrous web.

The combination of the fibrous web is a known method in the art, for example, but the like needle punching method, a thermal bonding method, melt blown method, spun lace method, seutechi bond method, not particularly limited to these. In a preferred embodiment, the combination of fiber web by needle punching (needle punching). In one embodiment, supplying the carded batt by needle punching process, the needle punching process, the barb when the batt is passed through the machine - passes through the formed (baebed) bed (bed) of the needle the batt. Bob-formed needle pulling the batt fibers from each other, thereby increasing the density of the structure and entangling the filaments in a three-dimensional.

In this way the combined fiber web is made of a non-woven fabric through a calendering step, as previously described.

In one embodiment, the density of the non-woven fabric made according to the present invention is preferably from 50g / m 2 to 600g / m 2, more preferably from 80g / m 2 to 300g / m 2. Can lower the hemostatic effect if the density of the nonwoven fabric is lower than the level, there is a separation of the web it can occur when bleeding is reduced by higher entangled by needle punching of cohesion is reduced.

In a preferred embodiment, the nonwoven fabric is intended to be used as a hemostatic agent or the adhesion agent, a hemostatic agent, particularly.

More specifically the present invention to the following one embodiment, this is not the scope of the present invention it is by may make embodiment for explaining the present invention limited in any way.

EXAMPLES

Example 1

The weave of the regenerated cellulose has a tensile strength of 10kgf (Regenerated Cellulose) was oxidized using nitrogen dioxide: dried (oxidation 19%).

Then, the density of the web in a suitably arranged through the carding (Carding) step of the conditions shown in to a woven oxidized regenerated cellulose (ORC) Table 1 to prepare a sheet-like web and then the resulting one-ply is from about 15g / m 2 It was measured.

TABLE 1

Figure PCTKR2017013018-appb-I000001

Then through the calendering (calendaring) process conditions shown in Table 2 to form a fibril-shaped fiber.

TABLE 2

Figure PCTKR2017013018-appb-I000002

Example 2

Example 1, to a suitably arranged through the carding (Carding) process to a woven oxidized regenerated cellulose (ORC) conditions to prepare a sheet-like web and then, obtained was bonded through needle punching of the conditions shown in Table 3 .

TABLE 3

Figure PCTKR2017013018-appb-I000003

Followed by forming a nonwoven fabric having a predetermined thickness through the calendering (calendaring) process conditions shown in Table 2.

The density of the obtained non-woven fabric was measured to be about 85g / m 2.

Example 3

, It was performed a small animal model test of the rat kidney resection in order to assess the hemostatic effect of the exemplary fibril-shaped fiber obtained in Example 1. As a result, the loss until hemostasis average blood volume (Mean blood loss) values ​​are shown in Table 4 below.

In Table 4, the left and just after cutting a portion of the rat kidney by the case where the natural hemostasis Control, a case in which bleeding after attaching the fibril-shaped fiber ablation Sample 1.

TABLE 4

Figure PCTKR2017013018-appb-I000004

As can be seen from the results in Table 4, the fibrillated fiber according to the invention exhibits an excellent hemostatic effect.

Example 4

In order to evaluate the hemostatic effect of the nonwoven fabric obtained in Example 2, it was performed a small animal model test excised kidney of rat. As a result, the loss until hemostasis average blood volume (Mean blood loss) values ​​are shown in Table 5 below.

In Table 5, and is then excised portions of the rat kidney case where the natural hemostasis and just left the Control, a case where a nonwoven fabric is attached after resection hemostasis Sample 2.

Table 5

Figure PCTKR2017013018-appb-I000005

As can be seen from the results in Table 5, the non-woven fabric according to the present invention exhibits an excellent hemostatic effect.

Claims (11)

  1. Method of producing a fiber web comprising the step of carding the woven fabric.
  2. The method of claim 1, wherein the cellulosic fabric is played oxide, a cellulose or a combination thereof The method of producing a fiber web.
  3. According to claim 1, wherein the tensile strength of the fabric 4kgf to 25kgf, the method of manufacturing a fibrous web.
  4. To claim 1, wherein method of claim 3, wherein any one of the methods including the step of calendering the fibrous web produced according to, fibrils of the fiber.
  5. Comprising the steps of: combining the fibrous web produced according to any one of the methods of items 1 to 3; And a method of producing a nonwoven fabric, comprising the steps of: coupling a fiber-calendering the web.
  6. The method of claim 5, wherein the method of producing a nonwoven fabric, to combine the fibrous web by needle punching.
  7. Any one of claims 1 to be made according to any one of the method of 3, wherein the fibrous web is a density of 10g / m 2 to 60g / m 2.
  8. Claim is made according to the method of claim 4 and a density of 10g / m 2 to 60g / m 2 of the fibril fiber.
  9. The method of claim 8 wherein the fibril fiber for use as a hemostatic agent or the adhesion agent.
  10. Claim is made according to the method of claim 5 and a density of 50g / m 2 to 600g / m 2 of non-woven fabric.
  11. The method of claim 10, wherein the non-woven fabric for use as a hemostatic agent or the adhesion agent.
PCT/KR2017/013018 2016-12-05 2017-11-16 Method for producing fibrous web, fibrillar fiber, or nonwoven fabric, and fibrous web, fibrillar fiber, or nonwoven fabric produced thereby WO2018105918A2 (en)

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KR10-2016-0164254 2016-12-05

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4744920B2 (en) * 2005-04-22 2011-08-10 花王株式会社 Processing method of the fiber sheet
US20080070463A1 (en) * 2006-09-20 2008-03-20 Pankaj Arora Nanowebs
KR101070358B1 (en) * 2009-12-24 2011-10-05 한국생산기술연구원 Surgical nonwoven material and manufacturing method thereof
TWI549703B (en) * 2013-12-27 2016-09-21 Zuiko Corp Hemostatic material
KR101878774B1 (en) * 2015-04-15 2018-07-17 주식회사 삼양바이오팜 Multifunctional hemostatic material and method for preparing the same

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