CN1044820C - Fish skin nontoxic tanning technology - Google Patents
Fish skin nontoxic tanning technology Download PDFInfo
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- CN1044820C CN1044820C CN96115699A CN96115699A CN1044820C CN 1044820 C CN1044820 C CN 1044820C CN 96115699 A CN96115699 A CN 96115699A CN 96115699 A CN96115699 A CN 96115699A CN 1044820 C CN1044820 C CN 1044820C
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- skin
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Abstract
The present invention provides non-toxic tanning technology for fish skin. The present invention is characterized in that the non-toxic tanning technology adopts the working procedures of pretanning linkage, retanning treatment, alkali steeping, pickling, etc., and replaces the original fish skin manufacturing technology which adopts toxic substances, such as chromium salt, formaldehyde, etc.; the non-toxic tanning technology achieves effects of good air permeability, water permeability, etc., avoids contact between toxic substances, and persons and human bodies, and solves the phenomenon of easy fish skin tumefaction during the working procedures of pickling, alkali steeping, etc. The non-toxic tanning technology provides clinical burning treatment with a hetero-skin biological dressing with the advantages of good biologic and physical property, convenient use and good therapeutic effect; the obtained product can be used as leather products.
Description
The present invention relates to a kind of process for tanning fish skin, more specifically say so a kind of manufacture craft of doing medical bio dressing and leatherware of fish-skin.
At present, fish-skin is carried out tanning and handles the technical scheme that is used as medical bio dressing and leatherware occur in succession.As, the application number of inventor's application: 93115237.2, the application for a patent for invention of title " fish-skin of treatment burn (knife wound) surface of a wound (wet or dried) xenogenesis skin and manufacturing process "; Application is artificial: Co. GE. IT. S.R.L., " process for tanning fish skin " of application, application number: 87105541.4 patent of invention; The Bandido father-in-law Bick of the artificial Germany of application, application number: 86107461, the patent of invention of title " method for preparing fish-skin ".Above-mentioned three patent applications are existing some shortcoming in varying degrees, application number: 93115237.2 application for a patent for invention is being used for having obtained the positive therapeutic effect in the medical bio dressing, compared significant advantage than pigskin, but owing to after operations such as adopting acid, alkaline purification and necessary retanning and immersion oil in technology makes product be used for surface of a wound drying, it is satisfied that pliability is owed, in addition, it is short that wet fish-skin yet exists preservation period, the shortcoming that transportation is inconvenient.The shortcoming of two applications for a patent for invention then: in technology, all adopted chromic salts, formaldehyde etc. that the deleterious material of human body is carried out tanning, therefore can not be used for the treatment of burn wound, often contacted, be unfavorable for health with toxic substance such as chromic salts for operator; Also have whole technological process not carry out at normal temperatures, be lower than proceed step by step under 10 ℃ or 20～80 ℃ of states, complex process also need have cooling system, and fish-skin at high temperature, and is very fragile; Do not handle owing to carry out pretan, in caustic dip pickling art breading, very easily cause fish-skin swelling and the destruction that arrives.
The objective of the invention is in order to solve above-mentioned existing problems, a kind of fish skin nontoxic tanning technology is provided, it can realize following purpose: 1, do not use toxic substances such as chromium, formaldehyde in the whole technology, can be used for treating the surface of a wound of burn and knife wound, for the burn clinical treatment provides a kind of biophysics functional, xenogenesis skin biological dressing easy to use, that curative effect is good, and can avoid Health cost to operator; 2, it to have an air-and water-permeable good, soft conformal, rehydration is fast; 3, how technology carries out at normal temperatures, need not cooling system; 4, solved the phenomenon of the fish-skin swelling that in pickling, caustic dip technology, is prone to.
In order to achieve the above object, processing step of the present invention is undertaken by following step:
A, with fish-skin desquamation and fleshing, prune away fin;
B, pretan chain close, and prepare by following weight ratio:
Fish-skin 1000
Water 1000～3000
Glutaraldehyde (25%) 3～8
Put into cylinder at normal temperatures, be interrupted and rotate, left standstill 5～16 hours, take out when gauffer appears in the increase of fish-skin thickness;
C, with fish-skin water flushing, remove remaining glutaraldehyde on the fish-skin;
D, caustic dip degrease, prepare by following weight ratio:
Fish-skin 1000
Water 1000～4000
Lime 40～70
Na
2S 10～30
Put into to be interrupted under the cylinder normal temperature and rotate, left standstill 6～18/ hours,, water control is done then with behind the fish-skin water thorough washing;
E, dealkalize and proteolytic enzyme are softening to be handled, and prepares by following weight ratio:
Fish-skin 1000
Water 1000～3000
Proteinase-10 .3～0.6
Add (NH
4)
2SO
4PH value is transferred to 7～8,
Temperature is transferred to 35～40 ℃, in cylinder, be interrupted and rotated 0.5～2 hour, after the normal temperature washing, water control is done again;
F, pickling are handled, and prepare by following weight ratio:
Fish-skin 1000
Water 1500～3000
Salt 50～100
Adding 3.7% hydrochloric acid accent PH is 2.5～4.5, is interrupted in cylinder under the normal temperature and rotates 0.5～2 hour; After washing with water, water control is done;
G, retanning are handled, and prepare by following weight ratio:
Fish-skin 1000
Water 1000～3000
(25%) glutaraldehyde 8～20
Add yellow soda ash and transfer PH6～8, insulation is interrupted rotation 0.5～1.5 hour at 35～40 ℃ in cylinder;
H, immersion oil are handled, and prepare by following weight ratio:
Fish-skin 1000
Water 1000～3000
Oil in water emulsion 150～300
Add NaHCO
3Transfer PH to 6～7, insulation is interrupted and rotated 1～3 hour at 35～40 ℃ in cylinder;
I, washing, after drying, cutting, the gummed splicing is to required area.
The bleaching of can decolouring after step g is handled, and prepares by following weight ratio:
Fish-skin 1000
Water 1000～3000
25％H
2O
2?200～400
15% ammoniacal liquor 30～50
Soak 5～18 hours to only decolouring.
When fish-skin is used as medical bio dressing, after the i step, packs and disinfect: seal respectively in successively pack into polyethylene bag and the outer bag, with cobalt 60 irradiation sterilizations.
When fish-skin is used for making leatherware, after the i step, dye, oil, glazing.
The present invention has the following advantages: 1, at first select glutaraldehyde pretan, reduced fish-skin step such as caustic dip, pickling in tannery the requirement of strength of hydrolysis temperature has been overcome the difficult problem of the easy swelling of tanning in summer fish-skin; 2, in whole tannery, step (b, g) pretan and retanning have replaced chromic salts, virose treatment process such as formaldehyde, and it is good to have reached air-and water-permeable, effects such as soft conformal have avoided toxic substance to contact with personnel, the person; 3, how whole technology carries out at normal temperatures, has saved the subzero treatment operation; 4, through experiment, excellent property, data are as follows: permeable: cod skin 7330g/m
224h, sole skin 3380g/m
224h; Pulling force (breaking tenacity) sole skin 206.ON (standard 10 * 2.5cm
2Elasticity (extension at break degree) sole skin 49.0%; Electron-microscope scanning is observed: cod, sole skin surface micropore diameter 2～5 μ, 1500～2000/cm
2
Embodiment 1, carries out according to the following steps, a, the sole skin scaled and fleshing, prunes away fin; B, pretan are handled, weight ratio fish-skin 3000 grams, and water 6000 restrains, and concentration is 25% glutaraldehyde, 15 grams, places in the leather tanning cylinder, is interrupted with 12 rev/mins of rotating speeds and rotates, and rotates 5 minutes, leaves standstill 30 minutes, continues about 6 hours, to the increase of fish-skin thickness, gauffer occurs; C, emptying cylinder internal reaction liquid, the big water gaging that reinjects cleans repeatedly, removes remaining glutaraldehyde on the fish-skin, takes out fish-skin control solid carbon dioxide part; D, the sole skin of above processing is put into cylinder, add water 7500 grams, lime 150 grams, Na
2S60g, normal temperature are interrupted rotation down, leave standstill 8 hours, notice that fish-skin does not form the calcium spot; E, above fish-skin behind the water thorough washing, are done water control in cylinder, add 35～40 ℃ water 6000 grams (insulation), add (NH
4)
2SO
4Transfer PH7～8, add proteolytic enzyme 1.8g, cylinder is interrupted rotation, leaves standstill about 1 hour; Control dry reaction liquid, the normal temperature washing; F, add water 6000 gram, with salt 250 grams, add 3.7% hydrochloric acid and transfer PH to 3～4, normal temperature changeed 1 hour down; G, with behind the normal-temperature water repetitive scrubbing, water control is done, add 35～40 ℃ of warm water, 6000 grams and insulation, add 25% glutaraldehyde, 30 grams, transfer PH to 7～8 with yellow soda ash again, cylinder rotates half an hour; H, decolouring bleaching add water 6000 grams, add 25%H
2O
21000 grams, 15% ammoniacal liquor, 120 grams, it is only satisfied to be dipped to decolouring fully, (about 6 hours), normal temperature adds water washing again; I, add 35～40 ℃ of warm water 6000 gram, oil in water emulsion is selected lanolin oil in water emulsion 450 grams for use, adds NaHCO
3Transfer PH6-8, in cylinder, be interrupted and rotate 2 hours; J, water flushing, after control is done, the physical mechanical kneading, the cutting splicing is bonded to required area.When being used for medical bio with fish-skin and applying, use cobalt after the pack
60Irradiation sterilization, when fish-skin when the leatherware (suitcase, leather shoes, necktie, wallet etc.), dye, oil, glazing.
Embodiment 2, carry out according to the following steps, a, cod skin scaled and fleshing, prune away fin; B, pretan are handled, weight ratio fish-skin 3000 grams, and water 9000 restrains, and 25% glutaraldehyde, 24 grams place in the leather tanning cylinder, are interrupted with 12 rev/mins of rotating speeds and rotate, and rotate 5 minutes, leave standstill 30 minutes, continue about 10 hours, to the increase of fish-skin thickness, gauffer occurs; C, emptying cylinder internal reaction liquid, the big water gaging that reinjects cleans repeatedly, removes remaining glutaraldehyde on the fish-skin, takes out fish-skin control solid carbon dioxide part; D, the cod skin of above processing is put into cylinder, add water 10000 grams, lime 210 grams, Na
2S90g, normal temperature are interrupted rotation down, leave standstill 8 hours, notice that fish-skin does not form the calcium spot; E, above fish-skin behind the water thorough washing, are done water control in cylinder, add 35～40 ℃ water 9000 grams (insulation), add (NH
4)
2SO
4Transfer PH7～8, add proteolytic enzyme 1.8g and roll angle interruption rotation, left standstill about 1.5 hours; Control dry reaction liquid, the normal temperature washing; F, add water 9000 gram, with salt 300 grams, add 3.7% hydrochloric acid and transfer PH to 3～4, normal temperature changeed 1.5 hours down; G, with behind the normal-temperature water repetitive scrubbing, water control is done, add 35～40 ℃ of warm water, 9000 grams and insulation, add 25% glutaraldehyde, 60 grams, transfer PH to 7～8 with yellow soda ash again, cylinder rotated 1 hour; H, decolouring bleaching add water 9000 grams, add 25%H
2O
21100 grams, concentration 15% ammoniacal liquor 135 grams, it is only satisfied to be dipped to decolouring fully, (about 10 hours), normal temperature adds water washing again; I, add 35～40 ℃ of warm water 9000 gram, oil in water emulsion is selected Viscotrol C 900 grams for use, adds NaHCO
3Transfer PH6-8, in cylinder, be interrupted and rotated 3 hours; J, water flushing, after control is done, the physical mechanical kneading, the cutting splicing is bonded to required area.
Embodiment 3, connect following steps and carry out, and a, Dermis Cyprinus carpio scaled and fleshing, prune away fin; B, pretan are handled, weight ratio fish-skin 3000 grams, and water 5000 restrains, and 25% glutaraldehyde, 9 grams place in the leather tanning cylinder, are interrupted with 12 rev/mins of rotating speeds and rotate, and rotate 5 minutes, leave standstill 30 minutes, continue about 8 hours, to the increase of fish-skin thickness, gauffer occurs; C, emptying cylinder internal reaction liquid, the big water gaging that reinjects cleans repeatedly, removes remaining glutaraldehyde on the fish-skin, takes out fish-skin control solid carbon dioxide part; D, the Dermis Cyprinus carpio of above processing is put into cylinder, add water 5000 grams, lime 120 grams, Na
2S30g, normal temperature are interrupted rotation down, leave standstill 12 hours, notice that fish-skin does not form the calcium spot; E, above fish-skin behind the water thorough washing, are done water control in cylinder, add 35～40 ℃ water 5000 grams (insulation), add (NH
4)
2SO
4Transfer PH7～8, add proteinase-10 .9g and roll angle interruption rotation, left standstill about 0.5 hour; Control dry reaction liquid, the normal temperature washing; F, add water 5000 gram, with salt 150 grams, add 3.7% hydrochloric acid and transfer PH to 3～4, normal temperature changeed 0.5 hour down; G, with behind the normal-temperature water repetitive scrubbing, water control is done, add 35～40 ℃ of warm water, 5000 grams and insulation, add 25% glutaraldehyde, 24 grams, transfer PH to 7～8 with yellow soda ash again, cylinder rotated 0.5 hour; H, decolouring bleaching add water 5000 grams, add 25%H
2O
2600 grams, concentration 15% ammoniacal liquor 90 grams, it is only satisfied to be dipped to decolouring fully, (about 12 hours), normal temperature adds water washing again; I, 35～40 ℃ of warm water of loading, 5000 grams, oil in water emulsion is selected soya-bean oil 500 grams for use, adds NaHCO
3Transfer PH6-8, in cylinder, be interrupted and rotated 1.2 hours; J, water flushing, after control is done, the physical mechanical kneading, the cutting splicing is bonded to required area.
Claims (4)
1, a kind of fish skin nontoxic tanning technology is characterized in that this technology undertaken by following step:
A, with fish-skin desquamation and fleshing, prune away fin;
B, pretan chain close, and prepare by following weight ratio:
Fish-skin 1000
Water 1000～3000
Glutaraldehyde (25%) 3～8
Put into cylinder at normal temperatures, be interrupted and rotate, left standstill 5～16 hours, take out when gauffer appears in the increase of fish-skin thickness;
C, with fish-skin water flushing, remove remaining glutaraldehyde on the fish-skin;
D, caustic dip degrease, prepare by following weight ratio:
Fish-skin 1000
Water 1000～4000
Lime 40～70
Na
2S 10～30
Put into to be interrupted under the cylinder normal temperature and rotate, left standstill 6～18 hours,, water control is done then with behind the fish-skin water thorough washing;
E, dealkalize and proteolytic enzyme are softening to be handled, and prepares by following weight ratio:
Fish-skin 1000
Water 1000～3000
Proteinase-10 .3～0.6
Add (NH
4)
2SO
4PH value is transferred to 7～8,
Temperature is transferred to 35～40 ℃, in cylinder, be interrupted and rotated 0.5～2 hour, after the normal temperature washing, water control is done again;
F, pickling are handled, and prepare by following weight ratio:
Fish-skin 1000
Water 1500～3000
Salt 50～100
Adding 3.7% hydrochloric acid accent PH is 2.5～4.5, is interrupted in cylinder under the normal temperature and rotates 0.5～2 hour; After washing with water, water control is done;
G, retanning are handled, and prepare by following weight ratio:
Fish-skin 1000
Water 1000～3000
(25%) glutaraldehyde 8～20
Add yellow soda ash and transfer PH6～8, insulation is interrupted rotation 0.5～1.5 hour at 35～40 ℃ in cylinder;
H, immersion oil are handled, and prepare by following weight ratio:
Fish-skin 1000
Water 1000～3000
Oil in water emulsion 150～300
Add NaHCO
3Transfer PH to 6～7, insulation is interrupted and rotated 1～3 hour at 35～40 ℃ in cylinder;
I, washing, after drying, cutting, the gummed splicing is to required area.
2, fish skin nontoxic tanning technology according to claim 1, the bleaching that it is characterized in that decolouring after step g is handled, and prepares by following weight ratio:
Fish-skin 1000
Water 1000～3000
25％H
2O
2 200～400
15% ammoniacal liquor 30～50
Soak 5～18 hours to only decolouring.
3, fish skin nontoxic tanning technology according to claim 1 is characterized in that after the i step, packing and disinfecting when fish-skin is used as medical bio dressing: seal respectively in successively pack into polyethylene bag and the outer bag, use cobalt
60Irradiation sterilization.
4, fish skin nontoxic tanning technology according to claim 1 is characterized in that when fish-skin is used for making leatherware, after the i step, dyes, and oils, glazing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96115699A CN1044820C (en) | 1996-03-08 | 1996-03-08 | Fish skin nontoxic tanning technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96115699A CN1044820C (en) | 1996-03-08 | 1996-03-08 | Fish skin nontoxic tanning technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1159482A CN1159482A (en) | 1997-09-17 |
| CN1044820C true CN1044820C (en) | 1999-08-25 |
Family
ID=5122925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96115699A Expired - Fee Related CN1044820C (en) | 1996-03-08 | 1996-03-08 | Fish skin nontoxic tanning technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1044820C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUB20152180A1 (en) * | 2015-07-14 | 2017-01-14 | Db Patents Ltd | IMPROVED METHOD TO SKIN ANIMAL SKIN. |
| BR102015021435B1 (en) * | 2015-09-03 | 2023-10-10 | Marcelo José Borges De Miranda | TILAPIA SKIN PROCESSING PROCESS AND ITS USE IN COVERING SKIN LESIONS |
| IT201700095318A1 (en) * | 2017-08-23 | 2019-02-23 | Db Patents Ltd | METHOD TO SKIN ANIMAL SKIN. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4755186A (en) * | 1985-09-26 | 1988-07-05 | Bernardo von Beck | Process for the preparation of fish skin |
| US4874410A (en) * | 1989-03-20 | 1989-10-17 | The Spencer Turbine Company | Vacuum producing apparatus |
| EP0575632A1 (en) * | 1992-06-25 | 1993-12-29 | Josowic, Ingrid | Process for tanning fish skins |
-
1996
- 1996-03-08 CN CN96115699A patent/CN1044820C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4755186A (en) * | 1985-09-26 | 1988-07-05 | Bernardo von Beck | Process for the preparation of fish skin |
| US4874410A (en) * | 1989-03-20 | 1989-10-17 | The Spencer Turbine Company | Vacuum producing apparatus |
| EP0575632A1 (en) * | 1992-06-25 | 1993-12-29 | Josowic, Ingrid | Process for tanning fish skins |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1159482A (en) | 1997-09-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |