CN103667542B - A kind of production technique of contrast effect automobile cushion leather - Google Patents
A kind of production technique of contrast effect automobile cushion leather Download PDFInfo
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Abstract
The present invention relates to a kind of production technique of contrast effect automobile cushion leather.Wherein liming: with Na
2s: NaHS: the mass ratio of lime be 1: 1: 2 soluble in water be grey alkali lye, fur and grey alkali lye react 6h with the liquor ratio of 100: 100, add ash charge alkali lye step by step and make liquor ratio be increased to 100: 200, continue to react about 12h; Retanning: every 100 parts of skins add 100 parts of water, 1 part of pre-fatting agent HP and 3 part chrome tanning agent or chrome-free tanning agent, and react 1h under normal temperature, then add 2 parts of sodium formiates, react 1h at 40 DEG C, control ph is 3.6 ~ 4.0; Cover with paint, lacquer, colour wash, etc.: be made up of bottom roller coat, embossing, pigmented layer spraying, effect layer roller coat and top layer spraying process.Product of the present invention not only soft, grain is careful, good hand feeling is flexible, characteristic, the safety and environmental protection such as have more standby wear-resisting, folding, fast light, resistance to colour migration moves; The roller coat of effect layer adds the appreciative value of leather and the characteristic of pleasant, changes the outward appearance that general automobile cushion leather is stiff, lack flexibility.
Description
Technical field
The invention belongs to tanning industry technical field, particularly relate to a kind of production technique of contrast effect automobile cushion leather.
Background technology
Current medium-to-high grade car is all equipped with intradermal dressing leather, leather is made through techniques such as fleshing, deliming, softening, tanning, retanning, dyeing, drying, primary coat, embossing, painted, top paintings by ox-hide usually, the following problem of existing automotive trim leather ubiquity:
(1) be close to harsh performance and test request for meeting interior leather for automobiles, leather products both at home and abroad for automotive trim particularly seat cushions seems that plate is hard always in appearance, lack elasticity and soft feel(ing), lose leather as the due natural characteristic of natural product;
(2) dull coloring, lacks aesthetic property.
For promoting interior leather for automobiles image, change leather outward appearance, while enjoyment high stable interior trim quality, that experiences that higher-grade outward appearance brings is joyful and comfortable, the interior trim leather of superior automobile is made to have grain full flexible, skin body is evenly soft, and the level effect that color tool is beautiful, spy develops the production technique of contrast effect automobile cushion leather.
Summary of the invention
Main contents of the present invention are to provide a kind of production technique of interior leather for automobiles, the quality index requirement of automobile cushion leather harshness can be met by the product of this explained hereafter, can embody pleasing, comfortable and beautiful outward appearance again, skin body is soft, grain is careful, good hand feeling is flexible.
The technical scheme that technical solution problem of the present invention is taked is: a kind of production technique of contrast effect automobile cushion leather, comprise batching, immersion, fleshing, liming, fleshing split, deliming, softening, pickling, tanning, ageing, shaving washing, rewetting, retanning, neutralization, dyeing, stuffing, water squeezing stretching, extension, toggling, vibrate, fall soft, to cover with paint, lacquer, colour wash, etc. and step put in storage by gage; It is characterized in that:
Described liming step is: replace part Na with NaHS
2s, and add lime, Na
2s: NaHS: the mass ratio of lime is 1: 1: 2, soluble in water with total concn 10wt% is grey alkali lye; Immersion, fur after fleshing and grey alkali lye are placed in rotary drum with the liquor ratio of 100: 100, and reaction 6h, adds ash charge alkali lye step by step simultaneously and makes liquor ratio be increased to 100: 200, and continue to react about 12h;
Described retanning step is: stay in rotary drum by skin after shaving washing, rewetting, in mass parts, every 100 parts of skins add 100 parts of water, 1 part of pre-fatting agent HP and 3 part chrome tanning agent or chrome-free tanning agent, 1h is reacted under normal temperature, add 2 parts of sodium formiates again, at 40 DEG C, react 1h, control ph is 3.6 ~ 4.0;
Described covering with paint step is: be made up of bottom roller coat, embossing, pigmented layer spraying, effect layer roller coat and top layer spraying process.
Preferably, wherein:
(1) the coating of described bottom roller coat operation is made up of water-based paint cream, matting agent, tenderizer, middle soft urethane resin, middle rigid polyurethane resin, organic silicon hand feeling agent and water, and each components in mass portion meter is respectively: water-based paint cream 10 parts, matting agent 12 parts, tenderizer 16 parts, middle soft urethane resin 40 parts, middle rigid polyurethane resin 16 parts, organic silicon hand feeling agent 1 part and 5 parts, water; With 120g/m after each component is stirred
2glue spread be rolled onto through vibration, fall on the surface after soft step, control coating uniformity and glue spread by adjustment nip rolls gap during roller coat, enter drying tunnel drying after roller coat, drying temperature controls 120 ± 10 DEG C, time of drying 3 ~ 5min;
(2) described embossing procedure is: select the colored roller that decorative pattern is suitable, temperature controls at 125 ± 10 DEG C, pressure 180 ± 10Pa, embossing speed 5 ~ 6m/min; To ensure decorative pattern sizing and each position decorative pattern uniformity;
(3) the coating of described pigmented layer spraying process is made up of water-based paint cream, matting agent, tenderizer, middle soft urethane resin, middle rigid polyurethane resin, organic silicon hand feeling agent and water, and each component is respectively by mass parts: water-based paint cream 15 parts, matting agent 10 parts, tenderizer 8 parts, middle soft urethane resin 20 parts, middle rigid polyurethane resin 10 parts, organic silicon hand feeling agent 1 part and 36 parts, water; With 18g/m after each component is stirred
2glue spread spray to surface decorative pattern top, enter drying tunnel drying after spraying, drying temperature 100 ± 10 DEG C, time of drying is about 3min;
(4) the coating of described effect layer roller coat operation is made up of water-based paint cream, matting agent, tenderizer, middle soft urethane resin, middle rigid polyurethane resin, organic silicon hand feeling agent and water, and each components in mass portion meter is respectively: water-based paint cream 12 parts, matting agent 10 parts, tenderizer 11 parts, middle soft urethane resin 43 parts, middle rigid polyurethane resin 18 parts, organic silicon hand feeling agent 1 part and 5 parts, water; With 1 ~ 5g/m after each component is stirred
2amount be rolled onto on surface pigmented layer, similarly, during roller coat by adjustment nip rolls gap control coating uniformity and glue spread, enter drying tunnel drying after roller coat, drying temperature 80 ± 10 DEG C, time of drying 3min;
(5) the coating of described top layer spraying process is made up of water-based paint cream, hand feeling agent, delustring urethane, light urethane, linking agent and water, and each components in mass portion meter is respectively: water-based paint cream 2 parts, hand feeling agent 6 parts, delustring urethane 42 parts, light urethane 20 parts, linking agent 10 parts and 20 parts, water; With 50g/m after each component is stirred
2glue spread spray in surface effect layer, enter drying tunnel drying after spraying, bake out temperature 100 ~ 120 DEG C, stage drying, total drying time 8 ~ 10min.
Preferably, described chrome-free tanning agent is synthetic tanning agent ReluganGM and TARA tannin extract, and described synthetic tanning agent ReluganGM and the consumption of TARA tannin extract are 7: 3 by quality ratio.
Preferably, described water-based paint cream is NEOSAN2000 or CAR-TONE, described matting agent is SN-C or 4683, described tenderizer is SOFTS-C or SPELL1070, and described hand feeling agent is 2229W or ER, and described linking agent is XL-50 or YK, described middle soft urethane resin is DLV or CTR, described middle rigid polyurethane resin is LB or PE, and described delustring urethane is MATT200 or UD4, and described light urethane is HPV-C or 91UD.
The present invention selects the water base coating and decorating material of advanced environmental protection to be equipped with new and effective linking agent and brightening agent, and rational covering with paint is filled a prescription and roller coat, spraying coating process, and not only crosslinking reaction is gentle, mild, complete, film forming is fine and closely woven, stable, with matrix in conjunction with excellent effect, and possess suitable extensibility and elasticity.The seat cushions leather products that the present invention produces not only soft, grain is careful, good hand feeling is flexible, the advantageous characteristic such as have more standby wear-resisting, folding, fast light, resistance to colour migration moves, and safety and environmental protection characteristic; The roller coat of effect layer adds the appreciative value of leather and the characteristic of pleasant, changes the outward appearance that general automobile cushion leather is stiff, lack flexibility.
Embodiment
Below in conjunction with embodiment, the present invention is described further, but protection scope of the present invention is not limited to this.
Embodiment 1:
The concrete technological process of production is: batching → immersion → fleshing → liming → fleshing split → deliming → softening → pickling → tanning → ageing → shaving → rewetting → retanning → neutralization → dyeing and fat-liquoring → water squeezing stretching, extension → toggling → soft → covering with paint of vibrating → fall (primary coat → embossing → pigmented layer → effect layer → strong wear-resisting top is coated with) → gage warehouse-in.Wherein:
Liming makes fur after fleshing realize depilation and loose hide fiber fast for utilizing alkaline matter, removes interfibrillar substance simultaneously.NaHS is adopted to replace part Na
2s, ratio control, 1: 1, adds 2 times amount lime, soluble in water with total concn 10wt%, and the liquor ratio of fur and this aqueous solution is 100: 100, and the 6h of Multistep feeding reaction simultaneously, after liquor ratio is increased to 100: 200, continues to react about 12h.Part Na is replaced with NaHS
2s is to reduce the overplumping of rawhide, and Mao Gengyi removes, grain is also thin, and some fibre interstitial is more easily removed, and can prevent because of Na
2the large rawhide superdistension of S consumption and produce gauffer and grain owes topic of making detailed inquiries---this kind of depilating method can make fur both open the fertile line of neck line and tripe limit when alkali swelling loses hair or feathers, the cortex loss of surperficial overinflation or part between the rib and the hip position can be avoided again too many, and improvement and the area that also can obtain quality increase simultaneously.
Retanning is that after shaving washing, skin stays in rotary drum and adds 100 parts of water, it is 100 parts in 1000kg, the i.e. weight 1000kg of skin, add water 1000kg, adds 1 part of pre-fatting agent HP and 10kg, 3 parts of chrome tanning agents and 30kg, 1h is reacted under normal temperature, add 2 parts of sodium formiates and 20kg again, at 40 DEG C, react 1h, control ph is 3.9.And then reach required skin base performance and color standard by neutralization, dyeing, stuffing.
Covering with paint process comprises five operations such as roller coat priming paint, embossing, pigmented layer spraying, effect layer roller coat, top layer spraying, bottom roll coat enamel according to the mass fraction each component is: water-based paint cream NEOSAN200010 part, matting agent SN-C12 part, tenderizer SOFTS-C16 part, middle soft urethane resin DLV40 part, middle rigid polyurethane resin LB16 part, organic silicon hand feeling agent 1 part, 5 parts, water, is made into 100kg roller coat priming paint, with 120g/m after each component stirs evenly
2amount be rolled onto surface, by adjustment nip rolls gap control uniformity coefficient and glue spread; Enter drying tunnel drying after roller coat, drying temperature controls 123 DEG C, time of drying 4min.Select the colored roller of lichee line during embossing, temperature controls at 126 DEG C, pressure 182Pa, embossing speed 5.2m/min, and embossing procedure must ensure that decorative pattern is stereotyped, each position decorative pattern uniformity.Pigmented layer coating according to the mass fraction each component is: water-based paint cream NEOSAN200015 part, matting agent SN-C10 part, tenderizer SOFTS-C8 part, middle soft urethane resin DLV20 part, middle rigid polyurethane resin LB10 part, organic silicon hand feeling agent 1 part, 36 parts, water, be made into 100kg pigmented layer coating, with 18g/m after each component stirs evenly
2amount spray to surface, drying temperature 102 DEG C, time of drying is about 3min, the target of this pigmented layer be by the color controlling of skin and standard specimen basically identical.Effect layer adopts roll coating model to implement, each component is according to the mass fraction: water-based paint cream NEOSAN200012 part, matting agent SN-C10 part, tenderizer SOFTS-C11 part, middle soft urethane resin DLV43 part, middle rigid polyurethane resin LB18 part, organic silicon hand feeling agent 1 part, 5 parts, water, is made into 30kg effect layer roller coat material, with 2.3g/m after each component stirs evenly in this ratio
2amount be rolled onto surface decorative pattern top (with required effect layer effect to determine roller coat amount), similarly, during roller coat by adjustment nip rolls gap control uniformity coefficient and glue spread, drying temperature 82 DEG C, time of drying 3min.Top layer coating according to the mass fraction each component is: water-based paint cream NEOSAN20002 part, 20 parts, water, hand feeling agent 2229W6 part, delustring urethane MATT20042 part, light urethane HPV-C20 part, linking agent XL-5010 part, be made into 100kg top coat, with 50g/m after each component stirs evenly
2amount spray to surface, bake out temperature 100-120 DEG C, stage drying, the first stage 100 DEG C, subordinate phase 112 DEG C, the phase III 118 DEG C, total drying time 10min.
Except above-mentioned liming, retanning and covering with paint step, other each step is all identical with common process.The contrast effect automobile cushion leather be made up of the present embodiment technique, skin body is soft, grain is careful, good hand feeling is flexible, has more for advantageous characteristic such as wear-resisting, folding, fast light, resistance to colour migration move, film forming is fine and closely woven, stable, with matrix in conjunction with excellent effect, and possess suitable extensibility and elasticity.The roller coat of effect layer adds the appreciative value of leather and the characteristic of pleasant, changes the outward appearance that general automobile cushion leather is stiff, lack flexibility.The contrast effect automobile cushion leather Spot detection after tested of gained, the key technical indexes result is as follows:
Embodiment 2:
In the present embodiment, adopt chrome-free tanning agent in retanning step, this chrome-free tanning agent is: by quality ratio, and synthetic tanning agent ReluganGM: TARA tannin extract is 7: 3.Cover with paint, lacquer, colour wash, etc. in step, water-based paint cream is CAR-TONE, and matting agent is 4683, and tenderizer is or SPELL1070, hand feeling agent is ER, and linking agent is YK, and middle soft urethane resin is CTR, middle rigid polyurethane resin is PE, and delustring urethane is UD4, and light urethane is 91UD.All the other are identical with embodiment 1.
Embodiment 3:
In the present embodiment, covering with paint, lacquer, colour wash, etc. effect layer roller coat Working Procedure Controlling glue spread in step is 4g/m
2.All the other are identical with embodiment 1.
Claims (2)
1. a production technique for contrast effect automobile cushion leather, comprise batching, immersion, fleshing, liming, fleshing split, deliming, softening, pickling, tanning, ageing, shaving washing, rewetting, retanning, neutralization, dyeing, stuffing, water squeezing stretching, extension, toggling, vibrate, fall soft, to cover with paint, lacquer, colour wash, etc. and step put in storage by gage; It is characterized in that:
Described liming step is: replace part Na with NaHS
2s, and add lime, Na
2s: NaHS: the mass ratio of lime is 1: 1: 2, soluble in water with total concn 10wt% is grey alkali lye; Immersion, fur after fleshing and grey alkali lye are placed in rotary drum, reaction 6h with the liquor ratio of 100: 100, and substep adds ash charge alkali lye and makes liquor ratio be increased to 100: 200 simultaneously, and continues to react 12h;
Described retanning step is: stay in rotary drum by skin after shaving washing, rewetting, in mass parts, every 100 parts of skins add 100 parts of water, 1 part of pre-fatting agent HP and 3 part chrome tanning agent or chrome-free tanning agent, 1h is reacted under normal temperature, add 2 parts of sodium formiates again, at 40 DEG C, react 1h, control ph is 3.6 ~ 4.0;
Described covering with paint step is: be made up of bottom roller coat, embossing, pigmented layer spraying, effect layer roller coat and top layer spraying process, wherein:
(1) the coating of described bottom roller coat operation is made up of water-based paint cream, matting agent, tenderizer, middle soft urethane resin, middle rigid polyurethane resin, organic silicon hand feeling agent and water, and each components in mass portion meter is respectively: water-based paint cream 10 parts, matting agent 12 parts, tenderizer 16 parts, middle soft urethane resin 40 parts, middle rigid polyurethane resin 16 parts, organic silicon hand feeling agent 1 part and 5 parts, water; With 120g/m after each component is stirred
2glue spread be rolled onto through vibration, fall on the surface after soft step, control coating uniformity and glue spread by adjustment nip rolls gap during roller coat, enter drying tunnel drying after roller coat, drying temperature controls 120 ± 10 DEG C, time of drying 3 ~ 5min;
(2) described embossing procedure is: select the colored roller that decorative pattern is suitable, temperature controls at 125 ± 10 DEG C, pressure 180 ± 10Pa, embossing speed 5 ~ 6m/min; To ensure decorative pattern sizing and each position decorative pattern uniformity;
(3) the coating of described pigmented layer spraying process is made up of water-based paint cream, matting agent, tenderizer, middle soft urethane resin, middle rigid polyurethane resin, organic silicon hand feeling agent and water, and each component is respectively by mass parts: water-based paint cream 15 parts, matting agent 10 parts, tenderizer 8 parts, middle soft urethane resin 20 parts, middle rigid polyurethane resin 10 parts, organic silicon hand feeling agent 1 part and 36 parts, water; With 18g/m after each component is stirred
2glue spread spray to surface decorative pattern top, enter drying tunnel drying after spraying, drying temperature 100 ± 10 DEG C, time of drying 3min;
(4) the coating of described effect layer roller coat operation is made up of water-based paint cream, matting agent, tenderizer, middle soft urethane resin, middle rigid polyurethane resin, organic silicon hand feeling agent and water, and each components in mass portion meter is respectively: water-based paint cream 12 parts, matting agent 10 parts, tenderizer 11 parts, middle soft urethane resin 43 parts, middle rigid polyurethane resin 18 parts, organic silicon hand feeling agent 1 part and 5 parts, water; With 1 ~ 5g/m after each component is stirred
2amount be rolled onto on surface pigmented layer, similarly, during roller coat by adjustment nip rolls gap control coating uniformity and glue spread, enter drying tunnel drying after roller coat, drying temperature 80 ± 10 DEG C, time of drying 3min;
(5) the coating of described top layer spraying process is made up of water-based paint cream, hand feeling agent, delustring urethane, light urethane, linking agent and water, and each components in mass portion meter is respectively: water-based paint cream 2 parts, hand feeling agent 6 parts, delustring urethane 42 parts, light urethane 20 parts, linking agent 10 parts and 20 parts, water; With 50g/m after each component is stirred
2glue spread spray in surface effect layer, enter drying tunnel drying after spraying, bake out temperature 100 ~ 120 DEG C, stage drying, total drying time 8 ~ 10min;
Described water-based paint cream is NEOSAN2000 or CAR-TONE, described matting agent is SN-C or 4683, described tenderizer is SOFTS-C or SPELL1070, described hand feeling agent is 2229W or ER, described linking agent is XL-50 or YK, and described middle soft urethane resin is DLV or CTR, and described middle rigid polyurethane resin is LB or PE, described delustring urethane is MATT200 or UD4, and described light urethane is HPV-C or 91UD.
2. the production technique of a kind of contrast effect automobile cushion leather according to claim 1, it is characterized in that, described chrome-free tanning agent is synthetic tanning agent ReluganGM and TARA tannin extract, and described synthetic tanning agent ReluganGM and the consumption of TARA tannin extract are 7: 3 by quality ratio.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104846127A (en) * | 2015-05-06 | 2015-08-19 | 浙江力源皮业有限公司 | Leather manufacture and production process thereof |
| CN106273856A (en) * | 2016-08-04 | 2017-01-04 | 海宁富邦汽车内饰有限公司 | A kind of noise reducing type automobile cushion leather and processing technique thereof |
| CN109433564A (en) * | 2019-01-07 | 2019-03-08 | 明新旭腾新材料股份有限公司 | A kind of production method of contrast effect automobile interior decoration leather |
| CN111500796B (en) * | 2020-04-30 | 2022-02-22 | 柏德皮革(中国)有限公司 | Low-TVOC low-odor environment-friendly ecological automobile leather process |
| CN113481336A (en) * | 2021-07-30 | 2021-10-08 | 浙江富邦汽车内饰科技有限公司 | Low-temperature cow leather for automobile interior decoration and preparation method thereof |
| CN114317844A (en) * | 2022-01-06 | 2022-04-12 | 杨帆 | Novel leather material process |
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Denomination of invention: A Production Process for Bicolor Effect Automotive Cushion Leather Effective date of registration: 20230529 Granted publication date: 20151118 Pledgee: Zhejiang Haining Rural Commercial Bank Co.,Ltd. Pledgor: HAINING SENDE LEATHER Co.,Ltd. Registration number: Y2023980042053 |
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