CN111363867B - Method for carrying out grass-wood dyeing on chrome tanned cow leather - Google Patents
Method for carrying out grass-wood dyeing on chrome tanned cow leather Download PDFInfo
- Publication number
- CN111363867B CN111363867B CN202010393591.9A CN202010393591A CN111363867B CN 111363867 B CN111363867 B CN 111363867B CN 202010393591 A CN202010393591 A CN 202010393591A CN 111363867 B CN111363867 B CN 111363867B
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- Prior art keywords
- dyeing
- leather
- parts
- dye
- passion fruit
- Prior art date
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- 238000004043 dyeing Methods 0.000 title claims abstract description 83
- 239000010985 leather Substances 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 33
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 239000002023 wood Substances 0.000 title claims abstract description 9
- 229930182559 Natural dye Natural products 0.000 claims abstract description 24
- 244000288157 Passiflora edulis Species 0.000 claims abstract description 24
- 235000000370 Passiflora edulis Nutrition 0.000 claims abstract description 24
- 239000000978 natural dye Substances 0.000 claims abstract description 24
- 239000000975 dye Substances 0.000 claims abstract description 17
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 18
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 17
- 239000011259 mixed solution Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000001035 drying Methods 0.000 claims description 14
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 12
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 9
- 238000005470 impregnation Methods 0.000 claims description 9
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- 238000002791 soaking Methods 0.000 claims description 7
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 6
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims description 6
- 235000019253 formic acid Nutrition 0.000 claims description 6
- 229940074391 gallic acid Drugs 0.000 claims description 6
- 235000004515 gallic acid Nutrition 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 6
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- 239000000284 extract Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 229940048842 sodium xylenesulfonate Drugs 0.000 claims description 5
- QUCDWLYKDRVKMI-UHFFFAOYSA-M sodium;3,4-dimethylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1C QUCDWLYKDRVKMI-UHFFFAOYSA-M 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000002386 leaching Methods 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
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- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
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- 235000012828 Citrullus lanatus var citroides Nutrition 0.000 description 6
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- 230000000052 comparative effect Effects 0.000 description 5
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- 239000000047 product Substances 0.000 description 5
- 239000000979 synthetic dye Substances 0.000 description 5
- LSHVYAFMTMFKBA-TZIWHRDSSA-N (-)-epicatechin-3-O-gallate Chemical compound O([C@@H]1CC2=C(O)C=C(C=C2O[C@@H]1C=1C=C(O)C(O)=CC=1)O)C(=O)C1=CC(O)=C(O)C(O)=C1 LSHVYAFMTMFKBA-TZIWHRDSSA-N 0.000 description 4
- 235000005979 Citrus limon Nutrition 0.000 description 4
- 244000276331 Citrus maxima Species 0.000 description 4
- 235000001759 Citrus maxima Nutrition 0.000 description 4
- 244000131522 Citrus pyriformis Species 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- WZUVPPKBWHMQCE-UHFFFAOYSA-N Haematoxylin Chemical compound C12=CC(O)=C(O)C=C2CC2(O)C1C1=CC=C(O)C(O)=C1OC2 WZUVPPKBWHMQCE-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 240000001949 Taraxacum officinale Species 0.000 description 2
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- 238000000746 purification Methods 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
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- 239000002699 waste material Substances 0.000 description 2
- 244000306301 Caesalpinia sappan Species 0.000 description 1
- 235000015162 Caesalpinia sappan Nutrition 0.000 description 1
- 244000020518 Carthamus tinctorius Species 0.000 description 1
- 235000003255 Carthamus tinctorius Nutrition 0.000 description 1
- 244000062748 Eupatorium adenophorum Species 0.000 description 1
- 235000003805 Musa ABB Group Nutrition 0.000 description 1
- 240000008790 Musa x paradisiaca Species 0.000 description 1
- SJEYSFABYSGQBG-UHFFFAOYSA-M Patent blue Chemical compound [Na+].C1=CC(N(CC)CC)=CC=C1C(C=1C(=CC(=CC=1)S([O-])(=O)=O)S([O-])(=O)=O)=C1C=CC(=[N+](CC)CC)C=C1 SJEYSFABYSGQBG-UHFFFAOYSA-M 0.000 description 1
- 241000972672 Phellodendron Species 0.000 description 1
- 235000015266 Plantago major Nutrition 0.000 description 1
- 244000294611 Punica granatum Species 0.000 description 1
- 235000014360 Punica granatum Nutrition 0.000 description 1
- 240000003152 Rhus chinensis Species 0.000 description 1
- 235000014220 Rhus chinensis Nutrition 0.000 description 1
- 235000011034 Rubus glaucus Nutrition 0.000 description 1
- 244000235659 Rubus idaeus Species 0.000 description 1
- 235000009122 Rubus idaeus Nutrition 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 239000000980 acid dye Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
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- 244000309466 calf Species 0.000 description 1
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- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
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- 238000007730 finishing process Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000012812 general test Methods 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
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- 231100000956 nontoxicity Toxicity 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C15/00—Apparatus for chemical treatment or washing of hides, skins, or leather
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C11/00—Surface finishing of leather
- C14C11/003—Surface finishing of leather using macromolecular compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/34—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using natural dyestuffs
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/445—Use of auxiliary substances before, during or after dyeing or printing
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/60—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing polyethers
- D06P1/613—Polyethers without nitrogen
- D06P1/6131—Addition products of hydroxyl groups-containing compounds with oxiranes
- D06P1/6135—Addition products of hydroxyl groups-containing compounds with oxiranes from aromatic alcohols or from phenols, naphthols
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/62—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds with sulfate, sulfonate, sulfenic or sulfinic groups
- D06P1/621—Compounds without nitrogen
- D06P1/622—Sulfonic acids or their salts
- D06P1/625—Aromatic
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/651—Compounds without nitrogen
- D06P1/65106—Oxygen-containing compounds
- D06P1/65118—Compounds containing hydroxyl groups
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/651—Compounds without nitrogen
- D06P1/65106—Oxygen-containing compounds
- D06P1/65131—Compounds containing ether or acetal groups
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/653—Nitrogen-free carboxylic acids or their salts
- D06P1/6533—Aliphatic, araliphatic or cycloaliphatic
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/32—Material containing basic nitrogen containing amide groups leather skins
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/04—After-treatment with organic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/04—After-treatment with organic compounds
- D06P5/08—After-treatment with organic compounds macromolecular
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The application relates to the field of natural leather, and provides a cowhide dyeing method, which comprises the following steps: (1) preparing a natural passion fruit dye; (2) dyeing with natural dye: carrying out grass-wood dyeing on the chrome tanned cow leather by adopting a mordant dyeing mode; (3) and carrying out a post-finishing step on the dyed cowhide. The leather obtained by the method has soft color light, soft hand feeling and excellent color fastness.
Description
Technical Field
The application relates to the field of natural leather, in particular to a method for dyeing tanned finished leather and the prepared leather.
Background
At present, synthetic dyes such as acid dyes are mostly adopted for dyeing leather, and the synthetic dyes are not friendly to the ecological environment and have high wastewater treatment difficulty, so the dyeing and finishing industry is dedicated to searching for more ecological and environment-friendly dyes and dyeing processes for dyeing leather.
The natural dye has the advantages of good ecological compatibility with the environment, biodegradability and lower toxicity. Compared with synthetic dyes, the dye is more beneficial to ecological protection. While natural dyes may not be a complete replacement for synthetic dyes due to their many deficiencies, they are valuable as a partial replacement or supplement to synthetic dyes.
Conventional dyeing with natural dyes generally comprises the following steps: 1) extracting juice of the vegetation as dye liquor; (2) treating the object to be dyed in a dyeing solution; and selecting a proper mode to carry out dyeing treatment on the object to be dyed, such as pre-mordanting, post-mordanting, one-bath mordanting and the like.
In the field of dyeing leather, the prior art discloses dyeing leather with various natural extracts, for example CN110819745A discloses a method for improving the smell of leather products by using natural tea leaves, which comprises the following steps: s1, processing of natural tea: s11, de-enzyming, rolling and drying fresh tea leaves to obtain a dry tea leaf product; s12, grinding, leaching and drying the dried tea product to obtain tea tannin powder; s2, the tea tannin powder is used in the retanning and dyeing process of the dermis processing, so that the tea tannin can be fully absorbed by the dermis. The method utilizes the natural odor removing capability of tea leaves, and is used for a retanning filling process by extracting tea tannin, so that odor groups are adsorbed, the odor of finished leather is greatly reduced, the odor in an automobile is improved, the problem of complaint of consumers about the odor in the automobile is solved, and the requirement of the consumers on low odor is further met. Meanwhile, the tannin component can better improve the compactness of the leather, and good appearance is obtained.
CN105603774A discloses a process for printing and dyeing leather by using watermelon juice, which comprises the following steps: preparing watermelon red pigment by extraction, purification and other methods; and then preparing watermelon red into watermelon red dye, dyeing the watermelon red dye on the leather subjected to rare earth mordant dyeing, and finally coating the leather with ox horn oil. The invention improves the dyeing effect by treating the natural dye and the surface of the leather and dyeing the leather by the natural dye.
CN105568715A discloses a dermis dyeing process, which is carried out according to the following steps: 1) drying; 2) precipitating; 3) fermenting; 4) soaking; 5) coloring; 6) airing; 7) and (5) fixing the color to obtain the blue-dyed leather. The prepared blue-stained dermis has no toxicity, no environmental pollution, natural fragrance, bactericidal efficacy and wide application range.
CN105421102A discloses a process for printing and dyeing leather by using lemon peel juice, which comprises the following steps: extracting the lemon yellow pigment by extraction, purification and other methods; and then dyeing the lemon dye on the leather subjected to rare earth mordant dyeing, and finally coating the leather with the oxhorn oil. The natural dye is used for dyeing the leather to improve the dyeing effect by treating the natural dye and the surface of the leather.
The methods respectively disclose the application of tea, watermelon juice, lemon peel and the like in leather dyeing, and enrich the dyeing application of natural dye in the leather field.
In the field of textile dyeing with similar natural dyes, there are also many processes for dyeing the textile to be dyed with various natural extracts. For example, CN102102304A discloses an application of natural shaddock peel dye in dyeing cotton fabrics, which comprises the following steps: 1) pretreating raw materials; 2) soaking the pulverized shaddock peel powder in ethanol water solution at normal temperature; 3) continuously extracting by using an ultrasonic extraction method; 4) centrifuging the filtrate, removing insoluble substances, and concentrating under reduced pressure to obtain orange red color paste. 5) Adding a small amount of water into the orange-red color paste for suspension, and then performing centrifugal separation to obtain red pigment liquid; 6) modification treatment of cotton fabric; 7) dyeing the cotton fabric by using the shaddock peel natural dye obtained in the step 5), and finally taking out the cotton fabric, washing and drying the cotton fabric to obtain the shaddock peel natural dye. The preparation process is simple, the raw materials are cheap and easy to obtain, and the extraction efficiency is high; the pigment is safe and environment-friendly, can not generate chemical harm to human bodies, can be biologically degraded, has good stability and wide application prospect.
CN108864735A discloses an extraction method of passion fruit pigment and application thereof, which comprises the steps of cleaning and chopping the whole rotten waste passion fruit or waste peel of passion fruit processing industry, and mixing with water to obtain a mixed solution; adjusting the pH of the mixed solution with glacial acetic acid or soda ash, extracting for 0.5-3 h at 40-60 ℃, filtering, and reserving filtrate for dyeing real silk, wherein the dyeing method comprises the following steps: taking real silk, adding 2-10% (omf) (of the weight of the real silk to the fabric) of alum according to a bath ratio of 1: 30-50 (mass ratio), dyeing at the pH of 4-9 and at the temperature of 40-60 ℃ for 20-40 min. Dyed light brown: K/S1.6505, L79.73, a 3.77, b 14.19, c 14.69.
CN101353485A discloses that the raw material composition of the vegetable dye comprises phellodendron, sappan wood, pomegranate rind, kwan-yin grass, safflower, dandelion, plantain, hematoxylin and eupatorium adenophorum, the vegetable dye fully utilizes natural plant resources, has the characteristics of good photostability, good thermal stability and strong penetrability, and the dyed wood can meet the requirements of uniform coloring, no fading and no deformation.
CN103554965A discloses a formula for preparing red-brown wheat straw dye and a production method thereof, which takes sumac peel, dandelion root, raspberry, alum, glue worm, iron ion compound solution and mineral water as main raw materials, and the production method mainly comprises the process flows of material selection, material cutting, drying, soaking, hot boiling, mixing, precipitation, dyeing and finished product obtaining. The formula for preparing the reddish brown wheat straw dye prepared from pure natural plants and the production method have the advantages of pure nature, no pollution, environmental protection and no toxic or side effect on human bodies.
The method is used for dyeing the fabric, and although the dyeing process of the textile is not suitable for dyeing the leather, the prior art brings some thinking for dyeing the leather and has certain reference significance.
The technical scheme is that technicians test various natural extracts, innovate on the basis of the traditional leather natural dye, and further improve the softness and the glossiness of cowhide and the added value of products.
Disclosure of Invention
The application aims at solving the defects in the prior art, and provides the green dyeing method for dyeing the leather, and the obtained leather has soft color light, soft hand feeling and excellent color fastness.
The technical scheme of the application is as follows:
a method for carrying out grass-wood dyeing on chrome tanned cow leather is characterized by comprising the following steps:
(1) the preparation steps of the natural dye are as follows: blending water and passion fruit shells in a mass ratio of 2-3:1, then crushing the passion fruit shells into a slurry state through high-speed shearing, adding a certain amount of mixed solution of ethanol and water, leaching the passion fruit at room temperature, filtering to remove impurities, taking supernatant, concentrating at low temperature to be viscous, putting the concentrated solution into a vacuum oven for drying at low temperature, and crushing the dried material through a crusher to obtain the natural passion fruit dye;
(2) dyeing with natural dye: the method comprises the steps of weighing reagents according to a proportion, mixing passion fruit natural dye, a mordant, a dyeing auxiliary agent and water, uniformly stirring, preparing a dyeing solution, selecting a proper bath ratio, soaking the dried chrome-tanned cow leather in the dyeing solution, heating to 30-50 ℃, preserving heat for 4-6 hours, taking out, and drying at a low temperature;
(3) carrying out after-treatment on the dyed cowhide: performing post-treatment on the cowhide obtained in the step (2), preparing a post-finishing impregnation liquid, impregnating the cowhide in 10-20g/L of the post-finishing impregnation liquid at 40-50 ℃ for a period of time, taking out the cowhide, draining water, and drying at low temperature;
preferably, the mordant in the step (2) is a mixed solution of gallic acid, citric acid and formic acid; wherein the mass ratio of the gallic acid to the citric acid to the formic acid is (2-3) to (1-2) to (0.5-1); in tests, the fact that the dyeing effect of the natural citric acid mordant selected independently is not ideal is found, and after a certain amount of formic acid and gallic acid are added, the three mordants are compounded in a proper proportion, so that the obtained dyeing effect is more excellent, the color is darker, and various color fastness is better.
Preferably, the dyeing auxiliary in the step (2) is a mixed solution of nonylphenol polyoxyethylene ether, sodium xylene sulfonate and n-butyl alcohol; the mixed liquid of the nonionic surfactant nonylphenol polyoxyethylene ether, the cosolvent sodium xylene sulfonate and the micromolecule n-butyl alcohol is used as the dyeing auxiliary, the dyeing auxiliary has a synergistic effect in leather dyeing, and for cowhide, the dyeing auxiliary can play an excellent penetrating role, so that the surface tension of the surface of the leather is reduced, the passion fruit natural dye can permeate the inside of the leather, and the dye dispersed particles can permeate the inside of the leather. Preferably, the mass ratio of the three components is 1-2:2-3: 1.
Preferably, the mass ratio of ethanol to water in the mixed solution of ethanol and water is 1-2: 1.
Preferably, the post-finishing impregnation liquid is a mixed solution of low-molecular polyethylene emulsion and polyether hydrophilic silicone, the low-molecular polyethylene emulsion and the polyether hydrophilic silicone have good affinity effect on the leather, the leather can be endowed with soft hand feeling by treating the leather by adopting the solution with certain concentration, and the physical properties of the leather such as tearing strength and the like are improved to a certain extent after the post-treatment, while experiments show that the hand feeling of the leather which is subjected to the post-finishing by adopting the low-molecular polyethylene emulsion alone or the low-molecular polyethylene emulsion alone is not outstanding and is far lower than that of the leather which is subjected to the post-finishing by adopting the mixed system of the low-molecular polyethylene emulsion and the polyether hydrophilic silicone. Preferably, the low molecular weight polyethylene emulsion is selected from NT-XR603D of Nano-tex, and the polyether hydrophilic silicone is selected from NT-S249 of Nano-tex.
Preferably, the dyeing temperature and time are further preferably 40-50 ℃ and the temperature is kept for 5-6 hours, because the leather belongs to the protein class, and experiments show that the leather is easy to have hand deterioration when treated at a higher temperature (more than 50 ℃), but too low dyeing temperature prolongs the dyeing time.
The beneficial effect of this application lies in:
(1) according to the application, passion fruit is used for leather dyeing for the first time, a proper dyeing process and an auxiliary agent are selected for matching, leather with a good dyeing fastness effect is obtained, friction color fastness test shows that the leather has excellent color fastness, and the compounding of a composite mordant is selected, so that the leather has more excellent dyeing effect than that of a natural mordant which is independently adopted.
(2) The dyeing auxiliary is selected from a mixed solution of nonylphenol polyoxyethylene ether and n-butyl alcohol, has a synergistic effect in leather dyeing, can play an excellent penetrating role for cowhide, reduces the surface tension of the leather surface, is favorable for penetration of passion fruit natural dye into the leather, and is favorable for penetration of dye dispersed particles into the leather.
(3) The method comprises the steps of carrying out functional post-treatment after dyeing, wherein the post-treatment impregnating solution is a mixed solution of low-molecular polyethylene emulsion and polyether hydrophilic organic silicon, the low-molecular polyethylene emulsion and the polyether hydrophilic organic silicon have good affinity effect on leather, the leather is treated by adopting the solution with certain concentration, the leather can be endowed with soft hand feeling, and the physical properties of the leather such as tensile strength and elongation are improved to a certain extent.
Detailed Description
The invention is further described below by means of specific embodiments. The examples are given solely for the purpose of illustration and description, and are not intended as a definition of the limits of the invention.
The method is characterized in that cowhide of the same batch is taken as an example, the cowhide is subjected to finishing, and the obtained cowhide is subjected to performance test.
Specific examples 1 to 3
A method for carrying out grass wood dyeing on chrome tanned cow leather adopts passion fruit extract components to dye the chrome tanned cow leather, and comprises the following steps:
(1) the preparation steps of the natural dye are as follows: blending water and passion fruit shells in a mass ratio of 2:1, then crushing the passion fruit shells into pulp through high-speed shearing, adding a mixed solution of ethanol and water in a mass ratio of 1:1, leaching the passion fruit at room temperature, filtering to remove impurities, concentrating supernatant at low temperature to be viscous, putting the concentrated supernatant into a vacuum oven for drying at low temperature, and crushing the dried material through a crusher to obtain the natural passion fruit dye;
(2) dyeing with natural dye: carrying out grass-wood dyeing on chrome tanned cow leather by adopting a mordant dyeing mode, specifically weighing reagents according to a proportion, adding 15 parts of passion fruit natural dye, a mordant and a dyeing auxiliary agent to 1000 parts of water, uniformly stirring, preparing to obtain a dyeing solution, soaking the dried chrome tanned cow leather in the dyeing solution at a bath ratio of 30:1, heating to 50 ℃, preserving heat for 4 hours, taking out, and drying at a low temperature;
(3) carrying out after-treatment on the dyed cowhide: performing post-treatment on the cowhide obtained in the step (2), preparing a post-finishing impregnation liquid, impregnating the cowhide in 20g/L of the post-finishing impregnation liquid at 50 ℃ for 5 hours, taking out the cowhide, draining water, and drying at a low temperature;
the dyeing auxiliary agent is a mixed solution of nonylphenol polyoxyethylene ether, sodium xylene sulfonate and n-butyl alcohol;
the mordant is a mixed solution of gallic acid, citric acid and formic acid.
The finishing impregnation liquid is a mixed solution of low-molecular-weight polyethylene emulsion NT-XR603D and polyether type hydrophilic organic silicon NT-S249, and the mass ratio of the two is 2: 3.
Comparative examples 1 to 6 were the same as example 3 except that nonylphenol polyoxyethylene ether, sodium xylene sulfonate, n-butanol, gallic acid, citric acid and formic acid were not added.
Comparative examples 7 to 8 were conducted in the same manner as in example 3 except that polyether type hydrophilic silicone NT-S249 and low molecular weight polyethylene emulsion NT-XR603D were not added, and the amount of the impregnating solution added was 20 g/L.
Comparative example 9 was not post-treated, otherwise the same as example 3.
Comparative example 10 no mordant was added, and the procedure was otherwise the same as in example 3.
Comparative example 11 the dyeing assistant was not added, and the procedure was otherwise the same as in example 3.
The unfinished chrome tanned calfs were used as blank controls.
TABLE 1 content (g/L) of materials in examples
And carrying out color fastness test, flexibility test and mechanical property test on the sample. The test mode is as follows: 1. flexibility test: and (3) adopting a 10-grade rating system for the samples, testing the values for 1-10 points, wherein 1 is the worst, 10 is the best, and each sample is tested for 10 times to obtain an average value.
2. And (3) rubbing color fastness, adopting a general test mode in the field, taking pure cotton standard rubbing cloth to carry out a rubbing fastness test, and grading according to a gray sample card.
3. Wash fastness test: according to GB/T392l-2008A (1), the test temperature is (40 +/-2) DEG C, the leather is subjected to a color fastness to washing test, a gray sample card is adopted for evaluation, and the color difference between the original sample and the sample after fading is compared, wherein 5 grades are optimal and 1 grade is worst.
4. The tensile strength and elongation were measured according to the method of GB/T2710-2005, "determination of tensile strength and elongation in physical and mechanical tests of leather".
TABLE 2 test data for leather
Tests show that the leather obtained by the preparation method is good in softness and excellent in color fastness, and the selection of the mordant and the auxiliary agent is one of key points of the process; the color fastness is poor without adding mordant, the color fastness is not expected without adding auxiliary agent, the effect of the after-finishing process on the color fastness of the leather is large, and the improvement of the softness of the leather after soft finishing is obvious.
The leather of example 3 was tested for tensile strength and elongation at 15.9Mpa and 42.1%, respectively, and the mechanical properties were improved somewhat with respect to the tensile strength of 15.3 Mpa and elongation of 41.2% of the untreated dermis (blank), which may be related to the uniform spreading of the functional finish on the leather surface.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (1)
1. A method for carrying out grass-wood dyeing on chrome tanned cow leather adopts passion fruit extract components to dye the chrome tanned cow leather, and comprises the following steps: (1) the preparation steps of the natural dye are as follows: blending water and passion fruit shells in a mass ratio of 2:1, then crushing the passion fruit shells into pulp through high-speed shearing, adding a mixed solution of ethanol and water in a mass ratio of 1:1, leaching the passion fruit at room temperature, filtering to remove impurities, taking supernatant, concentrating at low temperature to be viscous, putting the concentrated liquid into a vacuum oven for drying at low temperature, and crushing the dried material through a crusher to obtain the natural passion fruit dye; (2) dyeing with natural dye: carrying out grass-wood dyeing on chrome tanned cow leather by adopting a mordant dyeing mode, specifically weighing reagents according to a proportion, soaking 15 parts of passion fruit natural dye, 4.75 parts of mordant, 5.5 parts of dyeing auxiliary agent and 1000 parts of added water into the obtained mixture to be uniformly stirred to obtain dyeing liquor, soaking the dried chrome tanned cow leather into the dyeing liquor at a bath ratio of 30:1, heating to 50 ℃, preserving heat for 4 hours, taking out and drying at low temperature; the dyeing auxiliary agent is a mixed solution of 1.5 parts of nonylphenol polyoxyethylene ether, 2.5 parts of sodium xylene sulfonate and 1.5 parts of n-butyl alcohol; the mordant is a mixed solution of 2.5 parts of gallic acid, 1.5 parts of citric acid and 0.75 part of formic acid; (3) carrying out after-treatment on the dyed cowhide: performing post-treatment on the cowhide obtained in the step (2), preparing a post-finishing impregnation liquid, impregnating the cowhide in 20g/L of the post-finishing impregnation liquid at 50 ℃ for 5 hours, taking out the cowhide, draining water, and drying at a low temperature; the finishing impregnation liquid is a mixed solution of 8 parts of NT-XR603D parts of low molecular weight polyethylene emulsion and 12 parts of polyether type hydrophilic organic silicon NT-S249, and leather softness grade is 9.0 grade, dry friction fastness is 5 grade, wet friction fastness is 4-5 grade, and color fastness to washing is 4-5 grade after finishing.
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| CN101019894A (en) * | 2006-02-16 | 2007-08-22 | 周婕 | Process of extracting effective component from plant |
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| CN105421102A (en) * | 2015-12-22 | 2016-03-23 | 广州番禺职业技术学院 | Process of printing and dyeing leather with lemon peel juice |
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| CN108864735A (en) * | 2018-06-01 | 2018-11-23 | 常州市艺染生物科技有限公司 | A kind of extracting method and its application of passion fruit pigment |
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| CN101019894A (en) * | 2006-02-16 | 2007-08-22 | 周婕 | Process of extracting effective component from plant |
| CN105421113A (en) * | 2015-12-22 | 2016-03-23 | 广州番禺职业技术学院 | Process of printing and dyeing animal skin with mangosteen peel juice |
| CN105421102A (en) * | 2015-12-22 | 2016-03-23 | 广州番禺职业技术学院 | Process of printing and dyeing leather with lemon peel juice |
| CN108486914A (en) * | 2018-03-09 | 2018-09-04 | 广州番禺职业技术学院 | A kind of technique for Animal Skin of being printed and dyed using dark plum juice |
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Denomination of invention: A method of dyeing chrome tanned cow hide with grass and wood Effective date of registration: 20221114 Granted publication date: 20220531 Pledgee: Zhejiang Fuyang rural commercial bank Limited by Share Ltd. Dongzhou branch Pledgor: Hangzhou Tianlong handbag Co.,Ltd. Registration number: Y2022980021860 |
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