CN103820585B - A kind of environment-friendly type polishing waxing nature falls the preparation method of line upper leather - Google Patents
A kind of environment-friendly type polishing waxing nature falls the preparation method of line upper leather Download PDFInfo
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Abstract
The present invention relates to the preparing technical field of leather, there is provided a kind of water saving, cost low, pollute the little line upper leather that naturally falls and dye dry from fur preparation, tanning, retanning and cover with paint, lacquer, colour wash, etc. the preparation method arranged, comprise following processing step: (1) prepares before tanning: (2) chrome tanning: (3) dye without chrome retanned; (4) dry arrangement: (5) cover with paint, lacquer, colour wash, etc. process: the scytoblastema after step (4) process is carried out covering with paint process by following operational path: bottom Cationic Finish → polishing → tumbling → middle level negatively charged ion covering with paint → top finishing → tumbling → fall soft → hand touch layer covering with paint → tumbling.
Description
Technical field
The present invention relates to the preparing technical field of leather, particularly relate to the preparation method that a kind of environment-friendly type polishing waxing nature falls line upper leather.
Background technology
Along with the raising of consumption idea, human consumer to the requirement of leather also from original rebuilding face, recoat decorations, hide disability and develop into and emphasize original, simple and unsophisticated, natural dab dressing leather, naturally fall grain leather leather with its natural outward appearance, excellent feel, is more and more subject to the favor of human consumer.Polishing waxing is fallen line upper leather and is belonged to nature and fall the higher leather kind of grain leather series class, and soft, decorative pattern is plentiful, and added value of product is high.Line upper leather complex manufacturing is fallen in conventional polishing waxing, requires high to raw material skin, also can to environment.
Summary of the invention
Therefore, for above content, the invention provides a kind of water saving, cost low, pollute the little line upper leather that naturally falls and dye dry from fur preparation, tanning, retanning and cover with paint, lacquer, colour wash, etc. the preparation method arranged.
For achieving the above object, the present invention is achieved by the following technical solutions: a kind of environment-friendly type polishing waxing nature falls the preparation method of line upper leather, comprises following processing step:
(1) prepare before tanning:
(2) chrome tanning: obtain wet blue leather after step (1) process, by obtained wet blue leather, carry out conventional water squeezing, stretching, extension, shaving process, and weigh; Shaving gauge control is at 1.35 ~ 1.40mm;
(3) dye without chrome retanned: the scytoblastema processed through step (2) is put into rotary drum and carry out retanning dyeing process, the processing step of retanning dyeing process is followed successively by: rinsing, neutralization, retanning, filling, dyeing, stuffing;
(4) dry arrangement: the scytoblastema after step (3) process is carried out drying by following operational path and arranges; Operational path is: toggling → rewetting → fall soft → toggling is stretched → wets in water squeezing, and the toggling of described toggling treatment process stretches tight apart from being 5 ~ 10cm;
(5) process is covered with paint, lacquer, colour wash, etc.: the scytoblastema after step (4) process is carried out covering with paint process by following operational path: bottom Cationic Finish → polishing → tumbling → middle level negatively charged ion covering with paint → top finishing → tumbling → fall soft → hand touch layer covering with paint → tumbling.
Further improvement is: described step (1) prepares before tanning by following operational path, its operational path is, batching → pre-immersion → except meat → main immersion → liming depilation → sheet graywall → deliming → softening → pickling, wherein, be added with in liming epilation step cladding heavy 1.3 ~ 1.5% Na
20.5 ~ 1.5%NaHS that S, cladding the are heavy and heavy 3.0 ~ 5.0%Ca (OH) of cladding
2consumption.
Further improvement is: the waste liquid that described step (2) chrome tanning treatment process obtains recycles.
Further improvement is: the concrete technology that described step (3) dyes without chrome retanned is: rinsing, neutralization, retanning, filling, dyeing, stuffing, is added with the retanning agent of cladding weight 20-30% and the fatting agent of cladding weight 15-20% in retanning process.
Further improvement is: fall supple-settlement technique and divide initial stage and final treatment techniques, and the treatment time at initial stage is 20 ~ 20.5h, and temperature controls at 45 ~ 48 DEG C, and humid control is 60 ~ 80%; Falling the soft post-processed time is 9.5 ~ 10h, and temperature controls at 48 ~ 50 DEG C, and humid control is 50 ~ 60%; Fall 2h before soft junction bundle, start exhausting cooling, temperature≤40 DEG C, humidity≤60%.
Further improvement is: the bottom cationic coating agent in described step (5) is made up of the raw material of following weight part: 100 parts, water, 30 ~ 60 parts, cation oil wax, cationic polyurethane resin 30 parts, synthesis resin 10 parts, auxiliary agent and filler 5 ~ 20 parts, pigment paste and dyestuff appropriate; Middle level negatively charged ion finishing agent is made up of the raw material of following weight part: 100 parts, water, negatively charged ion oil 30 parts, wax, anionic polyurethane resin 80 parts, anionic acrylic resin 50 parts, auxiliary agent and filler 30 parts, pigment paste and dyestuff appropriate; Top finishing agent is made up of the raw material of following weight part: 100 parts, water, aqueous nitrocellulose light 100 parts, hand feeling agent 10 ~ 15 parts, auxiliary agent 5 ~ 10 parts; Hand touch layer finishing agent is made up of the raw material of following weight part: 100 parts, water, hand feeling agent 10 ~ 15 parts, auxiliary agent 5 ~ 10 parts.
Further improvement is: in described step (5), bottom Cationic Finish amount is about 10 ~ 15g/ square feet, and middle level negatively charged ion covering with paint amount is about 5g/ square feet, and top finishing amount is about 3g/ square feet, and hand touch layer covering with paint amount is about 3g/ square feet.
By adopting preceding solution, the invention has the beneficial effects as follows: adopt the leather that preparation method of the present invention obtains, the smooth thickness of leather body is even, grain decorative pattern is clear, good hand feeling, physicals detection is carried out by QT/B1873-2010, thickness is 1.35mm, and heat shrink temperature is 99 DEG C, and tear edge reaches 118 ~ 126N, elongation is 24 ~ 25%, burst apart height 9mm, collapses brokenly intensity 371 ~ 387N/mm, and dry, wet friction colour fastness is 4-5 level, coating folding fastness is 50000 flawlesses, and all indexs all meet the requirements.
Further, in the present invention: (1) prepares before tanning and chrome tanning critical process such as the waste leather-making liquids such as liming, pickling, chrome tanning recycle, for main immersion process after the process of preimpregnation aqueous waste solution, common process fur process hides per ton beam house and about 15 tons, tanning process water, and use the technology of the present invention only to need 6 tons, water saving more than 60%; (2) because the waste leather-making liquids such as the technology of the present invention liming, pickling, chrome tanning recycle, the usage quantity of sulfide, lime, sulfuric acid, chromium powder etc. can effectively be saved; (3) because the technology of the present invention is covered with paint, lacquer, colour wash, etc. frivolous, covering with paint amount is only 20 ~ 25g/ square feet, and compare with routine covering with paint amount 40-50g/ square feet, the usage quantity of coating and decorating material about reduces by 50%; (4) because the technology of the present invention adopts wet toggling technology, and suitably control to fall soft degree, yield of leather can be made to improve more than 5%.Not only can naturally fall line upper leather by process for processing ox of good performance by the technology of the present invention, but also there is water saving, feature such as joint material, environmental protection etc., can effectively decreasing pollution thing and discharge of wastewater, saving production cost, increase economic benefit.
Embodiment
Describe embodiments of the present invention in detail below with reference to specific embodiment, to the present invention, how utilisation technology means solve technical problem whereby, and the implementation procedure reaching technique effect can fully understand and implement according to this.
If do not specialize, the conventional means that the technique means adopted in embodiment is well known to those skilled in the art, the reagent adopted and product be also can business obtain.Source, the trade(brand)name of agents useful for same and be necessary to list its moiety person, all indicate when occurring first.
Embodiment one
Environment-friendly type polishing waxing nature falls a preparation method for line upper leather, comprises following processing step:
(1) prepare before tanning: prepare before tanning to be undertaken by following operational path, operational path: batching → pre-immersion → except meat → main immersion → liming depilation → sheet graywall → deliming → softening → pickling, wherein batching, immersion, except meat, sheet graywall all routinely technique carry out, technique is soaked routinely, is used for main immersion by after the process of preimpregnation aqueous waste solution;
A. liming depilation: (consumption is all calculated with the per-cent of the weight of scytoblastema), water 100%(temperature: 22 DEG C), TrupowetMS0.1%, B
120.8%, W-1000.1%, NaHS0.15%, KF-500.2%, turn 30min; Lime 1.2%, turns 30min; NaHS1.3%, turns 20min; Filter hair about 60min, adds DESOAGENPOU0.3%, lime 1.0%, Na2S0.75%, turn 10min, stop 20min, turn and stop interval operation 3h, moisturizing 30%, then add DESOAGENPOU0.3%, lime 1.0%, Na2S0.75%, turns 10min, stops 20min, turn and stop interval operation 2h, then moisturizing 30%, add lime 1.5%, B120.3%, DG0.1%, turn 10min; Moisturizing 50%, Na
2s0.2%, turns 10min, stops 50min, and turn and stop interval operation 12h, Lime Liquor treatment agent is ELIPO-L, and Lime Liquor recycles, and consumption is about 0.03%;
B. deliming: first wash 10min with the water of 200%32 DEG C is vexed; Add DESOAGENTM0.2%, water 150%(temperature: 32 DEG C), turn 30min; Add DESOAGENTM1.3% again, water 100%(temperature: 32 DEG C), turn 90min; Then add U50.3%, DG0.1%, turn 80min, survey pH value about 8.8; It is clear to water that flowing water washes 30min;
C. pickling: water 50%, temperature remains on 18 ~ 20 DEG C, adds NaCl3%, turns 10min; Add formic acid 0.5%, KF-500.3%, turn 20min; Add sulfuric acid (after treatment pickling waste liquid) 1.4%, turn 20min, stop 40min, turn and stop interval operation 3h; Pickling waste liquid adds manipulation of regeneration agent ELIPO-D, and consumption is about 0.03%, can be recycled after treatment.
(2) chrome tanning: the wet blue leather obtained by step (1), carries out conventional water squeezing, stretching, extension, shaving process, and weighs; Shaving gauge control is at about 1.35mm; Chrome tanning process is: first add FelidermCS1.0%, and chromium powder 3.25%, turns 60min; Add DUENZOLSR-2280.2%, chromium powder 2.25%, sodium formiate 0.5%, turns 120min; Mend 35 DEG C of water 30%, add sodium bicarbonate 0.3%, turn 5h; Add the rear chrome wastewater 100% of process, reaction 3h, detect pH and be about 3.3, temperature 40-42 DEG C, heat shrink temperature > 95 DEG C; The manipulation of regeneration agent of chroming waste liquor interpolation 0.03% is drop into after ELIPO-D to recycle.
(3) dye without chrome retanned: by the scytoblastema processed through step (2) routinely technique carry out water squeezing stretching, extension, and shaving, then put into rotary drum and carry out retanning dyeing process, the processing step of retanning dyeing process is followed successively by: rinsing, neutralization, retanning, filling, dyeing, stuffing;
A. rinsing: technique routinely;
B. neutralization, stuffing: water 150%(temperature: 30 DEG C), with tannin KF501% in adding, NBP2%, BOV1%, sodium formiate 2%, turns 20min; Add sodium bicarbonate 2%, control pH is 6.9;
C. retanning, filling, dyeing, stuffing: add SF1%, EulinolTMS1%, SR2281%, rotate 20min; Then add fatting agent WP901.5%, MIR901.5%, WFL1.5%, turn 2h, stop drum and spend the night; Change water 100%(temperature: 30 DEG C), add retanning agent 10841%, F301%, E-332%, SUB2%, turn 20min; Add LTP1.5%, WHG1.5%, R67071.5%, R891.5%, MIR901%BTB0.1%, turn 20min; Then add P-MF2%, WF8582%, ATO2.5%, FS2.5%, GA2%, CC2%, E-333%, turn 60min; Then add dyestuff 2.0%, turn 60min, mend 55 DEG C of water 100%, turn 20min; Point add formic acid 3-5 time, turn 10min respectively, when pH is about 3.6, wash with 50 DEG C of water is vexed.Finally add 50 DEG C of water 200%, dyestuff 1%, rotate 15min; Add with cold water-reducible formic acid 0.5%, rotate 10min, add cationic fat liquor GS1%, turn 10min, after cleaning by normal-temperature water, go out drum.
(4) dryly to arrange: the scytoblastema after step (3) process is carried out drying by following operational path and arranges, operational path is: toggling → rewetting → fall soft → toggling is stretched → wet in water squeezing, wherein the wet toggling distance that stretches tight is 7-8cm; Fall the soft initial stage (front 22h), temperature 48 DEG C, humidity 80%; Fall the soft later stage (rear 10h), temperature 50 C, humidity 60%; Fall 2h before soft junction bundle, start exhausting cooling, temperature 40 DEG C, humidity 60%.
(5) process is covered with paint, lacquer, colour wash, etc.: the scytoblastema after step (4) process is carried out covering with paint process by following operational path: bottom Cationic Finish → polishing → tumbling → middle level negatively charged ion covering with paint → top finishing → tumbling → fall soft → hand touch layer covering with paint → tumbling, total covering with paint amount is 25g/ square feet.
Wherein bottom cationic coating agent is made up of the raw material of following weight part: 100 parts, water, 60 parts, cation oil wax, cationic polyurethane resin 30 parts, synthesis resin 10 parts, auxiliary agent and filler 15 parts, in right amount, Cationic Finish amount is about 14g/ square feet for pigment paste and dyestuff; Middle level negatively charged ion finishing agent is made up of the raw material of following weight part: 100 parts, water, negatively charged ion oil 30 parts, wax, anionic polyurethane resin 80 parts, anionic acrylic resin 50 parts, auxiliary agent and filler 30 parts, in right amount, covering with paint amount is about 5g/ square feet for pigment paste and dyestuff; Top finishing agent is made up of the raw material of following weight part: 100 parts, water, aqueous nitrocellulose light 100 parts, hand feeling agent 10 parts, auxiliary agent 10 parts, and covering with paint amount is about 3g/ square feet; Hand touch layer finishing agent is made up of the raw material of following weight part: 100 parts, water, hand feeling agent 10 parts, and auxiliary agent 5 parts, covering with paint amount is about 3g/ square feet.
The ox of the present embodiment process for processing falls grain leather naturally, and the smooth thickness of leather body is even, and grain decorative pattern is clear, good hand feeling, carries out physicals detection by QT/B1873-2010, and thickness is 1.35mm, heat shrink temperature is 99 DEG C, tear edge is 126N, and elongation is 24%, and burst apart height 9mm, collapse brokenly intensity 387N/mm, dry, wet friction colour fastness is 4-5 level, and coating folding fastness is 50000 flawlesses, and all indexs all meet the requirements.
Embodiment two
Environment-friendly type polishing waxing nature falls a preparation method for line upper leather, comprises following processing step:
(1) prepare before tanning: prepare before preparing before tanning to tan by following operational path;
Operational path: batching → pre-immersion → except meat → main immersion → liming depilation → sheet graywall → deliming → softening → pickling → chrome tanning, wherein batching, immersion, except meat, sheet graywall all routinely technique carry out, technique is soaked routinely, is used for main immersion by after the process of preimpregnation aqueous waste solution;
A. liming depilation: water 100%(temperature: 22 DEG C), TrupowetMS0.1%, B120.8%, W-1000.1%, NaHS0.15%, KF-500.2%, turn 30min; Lime 1.2%, turns 30min; NaHS1.3%, turns 20min; Filter hair about 60min; Add DESOAGENPOU0.3%, lime 1.0%, Na2S0.75%, turns 10min, stops 20min, turns and stops interval operation 3h; Moisturizing 30%, then add DESOAGENPOU0.3%, lime 1.0%, Na2S0.75%, turns 10min, stops 20min, turns and stops interval operation 2h; Moisturizing 30% again, adds lime 1.5%, B120.3%, DG0.1%, turns 10min; Moisturizing 50%, Na2S0.2%, turns 10min, stops 50min, turns and stops interval operation 12h.Lime Liquor treatment agent is ELIPO-L, and Lime Liquor recycles, and consumption is about 0.02%;
B. deliming: first wash 10min with the water of 200%31 DEG C is vexed; Add DESOAGENTM0.2%, water 150%(temperature: 31 DEG C), turn 30min; Add DESOAGENTM1.3% again, water 100%(temperature: 31 DEG C), turn 90min; Then add OroponOR0.3%, DG0.1%, turn 80min, survey pH value about 8.8; It is clear to water that flowing water washes 30min;
C. pickling: water 50%, temperature remains on 18-20 DEG C, adds NaCl3%, turns 10min; Add formic acid 0.5%, KF-500.3%, turn 20min; Add sulfuric acid (after treatment pickling waste liquid) 1.4%, turn 20min, stop 40min, turn and stop interval operation 3h, pickling waste liquid circulation uses, and pickling spent solution regeneration treatment agent is ELIPO-D, and consumption is about 0.02%.
(2) chrome tanning: the wet blue leather obtained by step (1), carries out conventional water squeezing, stretching, extension, shaving process, and weighs; Shaving gauge control is at about 1.35mm; Chrome tanning process is: first add FelidermCS1.0%, and chromium powder 3.25%, turns 60min; Add DUENZOLSR-2280.2%, chromium powder 2.25%, sodium formiate 0.5%, turns 120min; Mend 35 DEG C of water 30%, add sodium bicarbonate 0.3%, turn 5h; Add the rear chrome wastewater 100% of process, reaction 3h.Detect pH and be about 3.3, temperature 40-42 DEG C, heat shrink temperature > 95 DEG C.Chroming waste liquor recycles, and the agent of chroming waste liquor manipulation of regeneration is ELIPO-D, and consumption is about 0.02%.
(3) dye without chrome retanned: by the scytoblastema processed through step (2) routinely technique carry out water squeezing stretching, extension, and shaving, then put into rotary drum and carry out retanning dyeing process, the processing step of retanning dyeing process is followed successively by: rinsing, neutralization, retanning, filling, dyeing, stuffing;
A. rinsing: technique routinely;
B. neutralization, stuffing: water 150%(temperature: 30 DEG C), with tannin KF501% in adding, NBP2%, BOV1%, sodium formiate 2%, turns 20min; Add sodium bicarbonate 2%, control pH is 6.8;
C. retanning, filling, dyeing, stuffing: add SF1%, EulinolTMS1%, SR2281%, rotate 20min; Then add fatting agent WP901.5%, MIR901.5%, WFL1.5%, turn 2h, stop drum and spend the night; Change water 100%(temperature: 30 DEG C), add retanning agent 10841%, F301%, E-332%, SUB2%, turn 20min; Add LTP1.5%, WHG1.5%, R67071.5%, R891.5%, MIR901%BTB0.1%, turn 20min; Then add P-MF2%, WF8582%, ATO2.5%, FS2.5%, GA2%, CC2%, E-333%, turn 60min; Then add dyestuff 2.0%, turn 60min, mend 55 DEG C of water 100%, turn 20min; Point add formic acid 3-5 time, turn 10min respectively, when pH is about 3.6, wash with 50 DEG C of water is vexed.Finally add 50 DEG C of water 200%, dyestuff 1%, rotate 15min; Add with cold water-reducible formic acid 0.5%, rotate 10min, add cationic fat liquor GS1%, turn 10min, after cleaning by normal-temperature water, go out drum.
(4) dry arrangement: the scytoblastema after step (3) process is carried out drying by following operational path and arranges.Operational path is: toggling → rewetting → fall soft → toggling is stretched → wets in water squeezing, and wherein wet toggling stretches tight apart from being 7-8cm; Fall the soft initial stage (18h), temperature 50 C, humidity 60%; Fall the soft later stage (12h), temperature 48 DEG C, humidity 55%; Fall 2h before soft junction bundle, start exhausting cooling, temperature 35 DEG C, humidity 55%.
(5) process is covered with paint, lacquer, colour wash, etc.: the scytoblastema after step (4) process is carried out covering with paint process by following operational path: bottom Cationic Finish → polishing → tumbling → middle level negatively charged ion covering with paint → top finishing → tumbling → fall soft → hand touch layer covering with paint → tumbling, total covering with paint amount is 20g/ square feet.
Wherein bottom cationic coating agent is made up of the raw material of following weight part: 100 parts, water, 40 parts, cation oil wax, cationic polyurethane resin 30 parts, synthesis resin 10 parts, auxiliary agent and filler 15 parts, in right amount, Cationic Finish amount is about 10g/ square feet for pigment paste and dyestuff; Middle level negatively charged ion finishing agent is made up of the raw material of following weight part: 100 parts, water, negatively charged ion oil 30 parts, wax, anionic polyurethane resin 80 parts, anionic acrylic resin 50 parts, auxiliary agent and filler 30 parts, in right amount, covering with paint amount is about 5g/ square feet for pigment paste and dyestuff; Top finishing agent is made up of the raw material of following weight part: 100 parts, water, aqueous nitrocellulose light 100 parts, hand feeling agent 12 parts, auxiliary agent 7 parts, and covering with paint amount is about 3g/ square feet; Hand touch layer finishing agent is made up of the raw material of following weight part: 100 parts, water, hand feeling agent 12 parts, and auxiliary agent 8 parts, covering with paint amount is about 2g/ square feet.
The ox of the present embodiment process for processing falls grain leather naturally, and the smooth thickness of leather body is even, and grain decorative pattern is clear, good hand feeling, carries out physicals detection by QT/B1873-2010, and thickness is 1.35mm, heat shrink temperature is 99 DEG C, tear edge is 118N, and elongation is 25%, and burst apart height 9mm, collapse brokenly intensity 371N/mm, dry, wet friction colour fastness is 4-5 level, and coating folding fastness is 50000 flawlesses, and all indexs all meet the requirements.
Adopt the leather that preparation method of the present invention obtains, the smooth thickness of leather body is even, and grain decorative pattern is clear, good hand feeling, carries out physicals detection by QT/B1873-2010, and thickness is 1.35mm, heat shrink temperature is 99 DEG C, tear edge reaches 118 ~ 126N, and elongation is 24 ~ 25%, and burst apart height 9mm, collapse brokenly intensity 371 ~ 387N/mm, dry, wet friction colour fastness is 4-5 level, and coating folding fastness is 50000 flawlesses, and all indexs all meet the requirements.
Further, in the present invention: (1) prepares before tanning and chrome tanning critical process such as the waste leather-making liquids such as liming, pickling, chrome tanning recycle, for main immersion process after the process of preimpregnation aqueous waste solution, common process fur process hides per ton beam house and about 15 tons, tanning process water, and use the technology of the present invention only to need 6 tons, water saving more than 60%; (2) because the waste leather-making liquids such as the technology of the present invention liming, pickling, chrome tanning recycle, the usage quantity of sulfide, lime, sulfuric acid, chromium powder etc. can effectively be saved; (3) because the technology of the present invention is covered with paint, lacquer, colour wash, etc. frivolous, covering with paint amount is only 20 ~ 25g/ square feet, and compare with routine covering with paint amount 40-50g/ square feet, the usage quantity of coating and decorating material about reduces by 50%; (4) because the technology of the present invention adopts wet toggling technology, and suitably control to fall soft degree, yield of leather can be made to improve more than 5%.Not only can naturally fall line upper leather by process for processing ox of good performance by the technology of the present invention, but also there is water saving, feature such as joint material, environmental protection etc., can effectively decreasing pollution thing and discharge of wastewater, saving production cost, increase economic benefit.
Above, be only the embodiment utilizing this origination techniques content, the modification that any those skilled in the art use this creation to do, change, all belong to the scope of the claims that this creation is advocated, and be not limited to those disclosed embodiments.
Claims (3)
1. environment-friendly type polishing waxing nature falls a preparation method for line upper leather, it is characterized in that, comprises following processing step:
(1) prepare before tanning: prepare before tanning to be undertaken by following operational path, operational path: batching → pre-immersion → except meat → main immersion → liming depilation → sheet graywall → deliming → softening → pickling, wherein batching, immersion, except meat, sheet graywall all routinely technique carry out, technique is soaked routinely, is used for main immersion by after the process of preimpregnation aqueous waste solution;
(2) chrome tanning: obtain wet blue leather after step (1) process, by obtained wet blue leather, carry out conventional water squeezing, stretching, extension, shaving process, and weigh; Shaving gauge control is at 1.35 ~ 1.40mm;
(3) dye without chrome retanned: the scytoblastema processed through step (2) is put into rotary drum and carry out retanning dyeing process, the processing step of retanning dyeing process is followed successively by: rinsing, neutralization, retanning, filling, dyeing, stuffing;
(4) dry arrangement: the scytoblastema after step (3) process is carried out drying by following operational path and arranges; Operational path is: toggling → rewetting → fall soft → toggling is stretched → wets in water squeezing, and the toggling of described toggling treatment process stretches tight apart from being 5-10cm;
(5) process is covered with paint, lacquer, colour wash, etc.: the scytoblastema after step (4) process is carried out covering with paint process by following operational path: bottom Cationic Finish → polishing → tumbling → middle level negatively charged ion covering with paint → top finishing → tumbling → fall soft → hand touch layer covering with paint → tumbling;
Described supple-settlement technique of falling divides initial stage and final treatment techniques, and the treatment time at initial stage is 20 ~ 20.5h, and temperature controls at 45 ~ 48 DEG C, and humid control is 60 ~ 80%; Falling the soft post-processed time is 9.5 ~ 10h, and temperature controls at 48 ~ 50 DEG C, and humid control is 50 ~ 60%; Fall 2h before soft junction bundle, start exhausting cooling, temperature≤40 DEG C, humidity≤60%.
2. environment-friendly type polishing waxing nature according to claim 1 falls the preparation method of line upper leather, it is characterized in that: the bottom cationic coating agent in described step (5) is made up of the raw material of following weight part: 100 parts, water, 30 ~ 60 parts, cation oil wax, cationic polyurethane resin 30 parts, synthesis resin 10 parts, auxiliary agent and filler 5 ~ 20 parts, pigment paste and dyestuff appropriate; Middle level negatively charged ion finishing agent is made up of the raw material of following weight part: 100 parts, water, negatively charged ion oil 30 parts, wax, anionic polyurethane resin 80 parts, anionic acrylic resin 50 parts, auxiliary agent and filler 30 parts, pigment paste and dyestuff appropriate; Top finishing agent is made up of the raw material of following weight part: 100 parts, water, aqueous nitrocellulose gloss oil 100 parts, hand feeling agent 10 ~ 15 parts, auxiliary agent 5 ~ 10 parts; Hand touch layer finishing agent is made up of the raw material of following weight part: 100 parts, water, hand feeling agent 10 ~ 15 parts, auxiliary agent 5 ~ 10 parts.
3. environment-friendly type polishing waxing nature according to claim 2 falls the preparation method of line upper leather, it is characterized in that: in described step (5), bottom Cationic Finish amount is 10 ~ 15g/ square feet, middle level negatively charged ion covering with paint amount is 5g/ square feet, top finishing amount is 3g/ square feet, and hand touch layer covering with paint amount is 3g/ square feet.
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| CN104593529B (en) * | 2014-12-30 | 2017-04-26 | 兴业皮革科技股份有限公司 | Non-volatile low-pollution full-waterborne genuine leather finishing process |
| CN104988248B (en) * | 2015-07-30 | 2017-04-26 | 兴业皮革科技股份有限公司 | Making technology of natural dry milled leather |
| CN108315511B (en) * | 2018-04-17 | 2020-10-09 | 焦作隆丰皮草企业有限公司 | Coating agent for fetal calf, comprehensive coating process and blue wet skin treatment process |
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| JP2013040259A (en) * | 2011-08-12 | 2013-02-28 | Midori Hokuyo Kk | Urethane beads topcoat |
| CN103589812A (en) * | 2013-11-28 | 2014-02-19 | 兴业皮革科技股份有限公司 | Preparation method of soft leather dyed by wax |
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2014
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| CN1594599A (en) * | 2004-06-18 | 2005-03-16 | 孟立君 | Method for making high-grade cabretta soft leather with defective sheepskin blue plate |
| JP2013040259A (en) * | 2011-08-12 | 2013-02-28 | Midori Hokuyo Kk | Urethane beads topcoat |
| CN102827966A (en) * | 2012-09-14 | 2012-12-19 | 兴业皮革科技股份有限公司 | Coating decoration method for making high-grade waxing leather from low-grade leather |
| CN102943139A (en) * | 2012-09-25 | 2013-02-27 | 兴业皮革科技股份有限公司 | Aldehyde vegetable-chrome tanning combined production method for waxed soft leather |
| CN103589812A (en) * | 2013-11-28 | 2014-02-19 | 兴业皮革科技股份有限公司 | Preparation method of soft leather dyed by wax |
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