CN1415382A - Method for preparing bandage with calcined gypsum being pasted and compsn. of magma liquid - Google Patents
Method for preparing bandage with calcined gypsum being pasted and compsn. of magma liquid Download PDFInfo
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- CN1415382A CN1415382A CN 02145697 CN02145697A CN1415382A CN 1415382 A CN1415382 A CN 1415382A CN 02145697 CN02145697 CN 02145697 CN 02145697 A CN02145697 A CN 02145697A CN 1415382 A CN1415382 A CN 1415382A
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- CN
- China
- Prior art keywords
- gypsum fibrosum
- binder
- fibrosum preparata
- pulp
- polymer binder
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Abstract
A process for preparing the plaster bandage includes preparing raw slurry, uniformly coating it on the substrate of bandage, baking, rolling and uctting. The said raw slurry contains plaster and the organic solution high-molecular additive in Wt. ratio of 1:(0.3-0.8). Its product features high adhesion and stable setting time.
Description
[technical field]
The invention belongs to medical material tech field, specifically be meant production method and virgin pulp liquid compositions thereof that a kind of pulp-hanging type Gypsum Fibrosum preparata stretches tight.
[background technology]
Binder is a most widely used external fixation orthotic material in the orthopaedics therapy, actual in the market use amount maximum be plaster bandage.Plaster bandage commonly used can be divided into two big classes basically: a class is the powder gypsum binder, adopts Gypsum Fibrosum preparata (being calcium sulfate hemihydrate) directly to spread to invest gauze to make, immersion earlier swathed in sick limbs again when product used, and treats plaster bandage suction curing.Operate extremely inconvenience when this product uses, Gypsum Fibrosum powder is lost seriously during immersion, has both caused waste, and contaminated environment also influences the intensity after binder solidifies again.Another kind of is viscose plaster bandage, adopts mixed entry of Gypsum Fibrosum (being calcium sulphate dihydrate) and glue furnishing slurry to coat on the gauze, and moisture content in the slurry is removed in oven dry again, and then a hypocrystalline water in the high temperature removal Gypsum Fibrosum and making.This product is difficult for dry linting, easy to use, and shortcoming is instability hardening time, the phenomenon that often eases back, and not doing a good job to go out malpractice, and product must be through twice drying and dewatering technology, complex manufacturing, energy consumption is big.From the color aspect, since be subjected to raw material form proportioning and production technology restriction, must soak again during use, plaster bandage is single white at present, the single white binder can't satisfy patient's requirement of all ages and classes and different hobbies, and white binder is very easily contaminated and influence outward appearance, increases fear and the sense of depression of some patient to white again.
[summary of the invention]
The object of the invention is to overcome the shortcoming that exists in the prior art, selects proper raw material to form proportioning and production technology, and the production method that a kind of pulp-hanging type Gypsum Fibrosum preparata stretches tight and the technical scheme of virgin pulp liquid compositions thereof are provided.
Described pulp-hanging type Gypsum Fibrosum preparata binder production method is characterized in that comprising following processing step:
1) preparation of virgin pulp liquid: earlier with polymer binder and organic solvent mixed dissolution, make polymer binder organic solution, polymer binder occupies the 3-25% of machine total solution weight, again by Gypsum Fibrosum preparata: organic solution is 1: the weight ratio of 0.3-0.8, fully stirring, mix homogeneously are made virgin pulp liquid.
2) above-mentioned virgin pulp liquid is evenly coated on the binder base material through the special-purpose sizing machine of multiple roll axle, makes the hanging band, and the hanging amount is: 350-550g/m
2
3) rolling, bundling after the hanging band drying, cut, encapsulate by different size, bake out temperature T
DrLook solvent boiling point T
pAnd decide, be generally T
p＜T
Dr＜250 ℃.
Described pulp-hanging type Gypsum Fibrosum preparata binder virgin pulp liquid compositions is characterized in that containing the organic solution of Gypsum Fibrosum preparata, polymer binder, and polymer binder occupies the 3-25% of machine total solution weight, Gypsum Fibrosum preparata: the weight ratio of organic solution is 1: 0.3-0.8.
Described polymer binder be following one or more: acrylate or methacrylate based polymers, polyvinyl acetate or polyvinyl alcohol, polyvinyl formal or polyvinyl butyral resin, carboxymethyl cellulose.
Described organic solvent be following one or more: methanol, ethanol, dichloroethanes, chloroform, carbon tetrachloride, acetone, ethyl acetate.
Described polymer binder occupies the 3-15% of machine total solution weight, is preferably 8-12%, Gypsum Fibrosum preparata: the weight ratio of organic solution is 1: 0.4-0.6.
The pigment that also contains 0.2-0.5% in the described virgin pulp liquid.
Described pigment can be inorganic pigment or organic pigment, must nontoxicly, heat-resisting, water-fast soak, water solublity better and buying easily.As: red series can be molybdate red, toluidine red, permanent bordeaux FRL, solid purplish red FRR, the red BBS of sun-proof, Lithol Red forever; Yellow series can be barium chromate, zinc yellow, rutile-type lemon yellow, Fast Yellow G, permanent yellow HR, organic lemon yellow; Blue series can be cobalt blue, general Shandong soil indigo plant, pake purpke color lake, everbright fast blue toner 2R; Green-series can be chrome green, pigment Green 7; Orange series can be solid forever orange GC, solid orange 18 and the nontoxic mica titanium nacreous material of TC-Z forever.
Described binder base material is the cotton absorbent carbasus.
The percentage composition that occurs in the present patent application file, proportioning, umber, all by weight.
This pulp-hanging type Gypsum Fibrosum preparata binder production method and former paste compound thereof, the technology advantages of simple.Gypsum Fibrosum preparata exclusion in the production process in the virgin pulp liquid absorbs, and after the drying, the polymer binder that originally was scattered in organic solvent plays the physical bond effect, makes the gesso burl on the gauze synthesize membrane stratiform, and the Gypsum Fibrosum preparata bisque on the product is difficult for dropping.Because adopting Gypsum Fibrosum preparata is base stock, product has stable advantage hardening time.Simultaneously, in virgin pulp liquid, add different pigment, can produce and obtain various coloured plaster binders by the present invention.
[specific embodiment]
Embodiment 1: get gesso (CaSO
41/2H
2O content＞85%, 100 parts down together), concentration is 40 parts of 23% polyvinyl acetate methanol solutions, add the red BBS0.4-0.6 part of sun-proof, mixed blending defibrination gets the Gypsum Fibrosum powder virgin pulp liquid. the 32S or the 40S cotton absorbent carbasus of door 95 ± 0.5cm, thread count 30 * 20 are introduced the special-purpose sizing machine enforcement of multiple roll axle hanging, make the hanging band, the hanging amount is 360g/m
2Make the importing of hanging band and by drying cabin, remove solvent methanol, dry setting and rolling, bundling through cutting, encapsulating, get red plaster bandage again.The drying temperature of hanging is 70 ℃, the methanol that removes reuse after reclaiming.
Embodiment 2: get 100 parts of gessoes, concentration is 70 parts of 4% polyvinyl alcohol ethanol liquid, does not add pigment, and mixed blending defibrination gets virgin pulp liquid, and operations such as gauze hanging, drying are with embodiment 1, and wherein hanging amount is 400g/m
2, baking temperature is 80 ℃.Get white plaster bandage.
Embodiment 3: get 100 parts of gessoes, concentration is 50 parts of 10% carboxymethyl cellulose carbon tetrachloride solutions, blue part of general Shandong soil, and mixed blending defibrination gets virgin pulp liquid, and other operations are with embodiment 1, and wherein hanging amount is 400g/m
2, baking temperature is 90 ℃.Get blue plaster bandage.
Embodiment 4: get 100 parts of gessoes, concentration is 45 parts of 20% polyvinyl formal methanol solutions, permanent yellow HR0.6 part, and mixed blending defibrination gets virgin pulp liquid, and other operation is with embodiment 1, and wherein hanging amount is 500g/m
2, baking temperature is 150 ℃.Get yellow plaster bandage.
Embodiment 5: get 100 parts of gessoes, concentration is 60 parts of slurrying of polyvinyl butyral resin alcoholic solution of 15%, and other operation is with embodiment 1, and wherein hanging amount is 520g/m
2, baking temperature is 240 ℃.Get white plaster bandage.
Embodiment 6: get 100 parts of gessoes, concentration is methanol-40 parts of the ethyl acetate solution (methanol: ethyl acetate is 1: 0.25) of 25% polyvinyl acetate, and 0.5 part of pigment Green 7 is modulated into virgin pulp liquid, and other operation is with embodiment 1.Get green plaster bandage.
Embodiment 7: get 100 parts of gessoes, concentration is 50 parts of the chloroform solns of 10% polymethyl methacrylate, and solid forever orange GC0.5 part is made virgin pulp liquid, and other operations are with embodiment 1, and wherein hanging amount is 450g/m
2, baking temperature is 90 ℃, gets orange Gypsum Fibrosum boron band.
Embodiment 8: get 100 parts of gessoes, concentration is 45 parts of the acetone solns of 15% polymethyl acrylate, does not add pigment, and other operation is with embodiment 1, and wherein hanging amount is 480g/m
2, baking temperature is 70 ℃.Get white plaster bandage.
Embodiment 9: get 100 parts of gessoes, concentration is 50 parts of the dichloroethane solutions of 15% polymethyl ethyl ester, and 0.6 part of Lithol Red is modulated into virgin pulp liquid, and other operations are with embodiment 1, and wherein hanging amount is 450g/m
2, baking temperature is 65 ℃.Get red plaster bandage.
Embodiment 10: get 100 parts of gessoes, concentration is 40 parts of the methanol solutions of 5% polymethylacrylic acid, ten diester, does not add pigment, and other operation is with embodiment 1, and wherein hanging amount is 400g/m
2, baking temperature is 150 ℃.Get white plaster bandage.
Embodiment 11: get 100 parts of gessoes, concentration is 50 parts of the methanol solutions of methyl methacrylate-lauryl methacrylate copolymer of 10%, and virgin pulp liquid is made in 0.4 part in pake purpke color lake, and other operation is with embodiment 1.Get blue plaster bandage.
Claims (10)
1. pulp-hanging type Gypsum Fibrosum preparata binder production method is characterized in that comprising following processing step:
1) preparation of virgin pulp liquid: earlier with polymer binder and organic solvent mixed dissolution, make polymer binder organic solution, polymer binder occupies the 3-25% of machine total solution weight, again by Gypsum Fibrosum preparata: organic solution is 1: the weight ratio of 0.3-0.8, abundant stirring, mix homogeneously, make virgin pulp liquid
2) above-mentioned virgin pulp liquid is evenly coated on the binder base material through the special-purpose sizing machine of multiple roll axle, makes the hanging band, and the hanging amount is: 350-550g/m
2
3) rolling, bundling after the hanging band drying, cut, encapsulate by different size, bake out temperature T
DrLook solvent boiling point T
pAnd decide ,-as be T
p＜T
Dr＜250 ℃.
2. pulp-hanging type Gypsum Fibrosum preparata binder production method as claimed in claim 1, it is characterized in that described polymer binder be following one or more: acrylate or methacrylate based polymers, polyvinyl acetate or polyvinyl alcohol, polyvinyl formal or polyvinyl butyral resin, carboxymethyl cellulose, described organic solvent be following one or more: methanol, ethanol, dichloroethanes, chloroform, carbon tetrachloride, acetone, ethyl acetate.
3. pulp-hanging type Gypsum Fibrosum preparata binder production method as claimed in claim 1, it is characterized in that polymer binder occupies the 3-15% of machine total solution weight, Gypsum Fibrosum preparata: the weight ratio of organic solution is 1: 0.4-0.6.
4. pulp-hanging type Gypsum Fibrosum preparata binder production method as claimed in claim 1 is characterized in that polymer binder occupies the 8-12% of machine total solution weight.
5. pulp-hanging type Gypsum Fibrosum preparata binder production method as claimed in claim 1 is characterized in that described virgin pulp liquid contains the pigment of 0.2-0.5%.
6. pulp-hanging type Gypsum Fibrosum preparata binder virgin pulp liquid compositions is characterized in that containing the organic solution of Gypsum Fibrosum preparata, polymer binder, and polymer binder occupies the 3-25% of machine total solution weight, Gypsum Fibrosum preparata: the weight ratio of organic solution is 1: 0.3-0.8.
7. pulp-hanging type Gypsum Fibrosum preparata binder virgin pulp liquid compositions as claimed in claim 6, it is characterized in that polymer binder be following one or more: acrylate or methacrylate based polymers, polyvinyl acetate or polyvinyl alcohol, polyvinyl formal or polyvinyl butyral resin, carboxymethyl cellulose, described organic solvent be following one or more: methanol, ethanol, dichloroethanes, chloroform, carbon tetrachloride, acetone, ethyl acetate.
8. pulp-hanging type Gypsum Fibrosum preparata binder virgin pulp liquid compositions as claimed in claim 6, it is characterized in that polymer binder occupies the 3-15% of machine total solution weight, Gypsum Fibrosum preparata: the weight ratio of organic solution is 1: 0.4-0.6.
9. pulp-hanging type Gypsum Fibrosum preparata binder virgin pulp liquid compositions as claimed in claim 6 is characterized in that polymer binder occupies the 8-12% of machine total solution weight.
10. pulp-hanging type Gypsum Fibrosum preparata binder virgin pulp liquid compositions as claimed in claim 6 is characterized in that containing the pigment of 0.2-0.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02145697 CN1290585C (en) | 2002-10-29 | 2002-10-29 | Method for preparing bandage with calcined gypsum being pasted and compsn. of magma liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02145697 CN1290585C (en) | 2002-10-29 | 2002-10-29 | Method for preparing bandage with calcined gypsum being pasted and compsn. of magma liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1415382A true CN1415382A (en) | 2003-05-07 |
| CN1290585C CN1290585C (en) | 2006-12-20 |
Family
ID=4750960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02145697 Expired - Lifetime CN1290585C (en) | 2002-10-29 | 2002-10-29 | Method for preparing bandage with calcined gypsum being pasted and compsn. of magma liquid |
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| Country | Link |
|---|---|
| CN (1) | CN1290585C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311793C (en) * | 2005-05-25 | 2007-04-25 | 上海派尼科技实业有限公司 | Surgical fixation hot-softening bandage contg. zinc oxide and its producing method |
| CN103735426A (en) * | 2014-01-09 | 2014-04-23 | 浙江奥林医疗用品有限公司 | Method for preparing gypsum facial mask |
| CN104825273A (en) * | 2015-05-30 | 2015-08-12 | 李孟平 | Method for preparing breathable self-adhesion elastic bandage |
| CN105796240A (en) * | 2016-05-25 | 2016-07-27 | 浙江奥林医疗用品有限公司 | Preparation method of plaster bandage |
-
2002
- 2002-10-29 CN CN 02145697 patent/CN1290585C/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311793C (en) * | 2005-05-25 | 2007-04-25 | 上海派尼科技实业有限公司 | Surgical fixation hot-softening bandage contg. zinc oxide and its producing method |
| CN103735426A (en) * | 2014-01-09 | 2014-04-23 | 浙江奥林医疗用品有限公司 | Method for preparing gypsum facial mask |
| CN103735426B (en) * | 2014-01-09 | 2015-07-29 | 浙江奥林医疗用品有限公司 | A kind of preparation method of gypsum facial mask |
| CN104825273A (en) * | 2015-05-30 | 2015-08-12 | 李孟平 | Method for preparing breathable self-adhesion elastic bandage |
| CN105796240A (en) * | 2016-05-25 | 2016-07-27 | 浙江奥林医疗用品有限公司 | Preparation method of plaster bandage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1290585C (en) | 2006-12-20 |
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Granted publication date: 20061220 |