CN101671918B - Process for producing full nylon leather base fabric - Google Patents
Process for producing full nylon leather base fabric Download PDFInfo
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- CN101671918B CN101671918B CN2009101528682A CN200910152868A CN101671918B CN 101671918 B CN101671918 B CN 101671918B CN 2009101528682 A CN2009101528682 A CN 2009101528682A CN 200910152868 A CN200910152868 A CN 200910152868A CN 101671918 B CN101671918 B CN 101671918B
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Abstract
The invention relates to a process for producing full nylon leather base fabric, comprising the following steps: (1) using nylon 6 slices as the raw material, adding antistatic master batches into the nylon slices and preparing antistatic nylon 6 short fibers by the following steps: melting and extruding by using a screw compressor, spinning, beaming, adjusting spinning finish formula and improving the finishing mode during finishing, drying and setting, cutting and the like; and (2) preparing the antistatic nylon 6 short fibers of the step (1) into the full nylon leather base fabric by adopting a needle-punched nonwoven fabric production process. The invention has the advantage that the full nylon leather base fabric prepared by the process for producing full nylon leather base fabric has the advantages of good flexibility, high tensile failure strength, good hydroscopic property, good skin feeling as well elasticity and the like compared with the regular nylon polyester blended leather base fabric.
Description
Technical field
The present invention relates to the textile material field, be specifically related to a kind of production technology of full nylon leather base fabric.
Background technology
Entered since 21st century, develop rapidly along with the scarcity and the synthetic leather technology of natural skin resource, make that more nonwoven product is well used, especially with the acupuncture leather base fabric product of representative, because of its intrinsic emulation skin structure, by more leather manufacturers and client's approval.Just need 2.4 hundred million meters of acupuncture leather base fabrics at present only domestic every year, wherein have the part expensive goods also to need import.
As the medium and high-grade goods of synthetic leather, as the middle and high product of peeling off, great majority adopt to be washed bright and beautiful fiber blend, super fine making or the acupuncture leather base fabric is carried out certain post processing.These medium-to-high grade synthetic leathers have had the fine quality of corium, be that feel, intensity, elasticity, saturating wet, ABRASION RESISTANCE, resistance to ag(e)ing etc. have met or exceeded the natural leather level, especially some non-woven leather base fabric, not only with low cost, and its air-moisture-permeable, uniformity, workability are all even surpassed natural leather, reach the degree of mixing the spurious with the genuine.
The synthetic leather processing technology to base cloth at tension brute force and tearing brute force, the outward appearance and the uniformity, flatness, extensibility, flexibility, the performance of aspects such as high density and isotropic has higher requirements.Therefore most employing of synthetic leather base cloth product has good crystallinity at present, it is formulated that polyster fibre, nylon fibre, the polypropylene fibre of higher special benefits such as fracture strength pressed different proportion, adopt terylene short fiber and polypropylene fibre to make synthetic leather base cloth as patent CN1473975 in 7: 3 ratios, this base cloth is compared with pure terylene base cloth, though in stiff degree, intensity, percentage elongation is little, pull resistance aspect tool has some improvement, but effect still is not obvious, and the hygroscopicity poor effect.
Since in the polyster fibre owing to introduced phenyl ring, long-chain molecule seem rigidity some, be reflected in aspect of performance, its initial modulus is big, the base cloth of producing, elasticity and feel pliability will be inferior to polyamide fibre.And contain in the long-chain molecule of nylon fibre some can with the acid amides chain of water generation affinity interaction, so contain the hygroscopic raising of the synthetic base cloth of nylon fibre.It is favourable that back road PVA dipping, PU leather coating and DMF are contained soaking technology, so the quality of the high more synthetic leather of the ratio of polyamide fibre is also good more.
But because the dielectric of polyamide fibre staple fibre with good electrical insulating properties, its sheet resistance is generally at 1014～1015 Ω, and electric conductivity is much smaller than metal material, when contact with other material or rub after easy static electricity gathered lotus.Very easily produce static in process of manufacture, if there is not a large amount of knot of timely release electrostatic poly-, difficulty or ease become net in the carding machine carding process, also can cause to score a goal and folded net and can not producing on the lapping machine equipment.Thereby the ratio that contains polyamide fibre in the present domestic leather base fabric is the highest by 90%, does not also have other enterprises can produce 100% full nylon leather base fabric.
At present practical close fine with antistatic additive based on surfactant, hydrophilic macromolecule and electrically conductive particles.Close fine surfactant and mainly contain following kind: be cationic: quaternary ammonium salt, amine salt etc. with antistatic usefulness; Anionic: phosphate, sulfonate etc.; Nonionic: polyalcohol, polyol fatty acid ester, polyethylene glycol oxide additives etc.; Amphoteric: quatemay ammonium inner salt, propylamine hydrochlorate etc.In use there are a lot of shortcomings in the surfactant type antistatic additive, as antistatic effect lack permanent, separate out make surperficial variation, add the decomposes in man-hour, big etc. for the temperature and humidity dependence.And can overcome the above problems as antistatic additive with various hydrophilic polymers.Polyethylene glycol oxide (PEO) etc. joined as the various hydrophilic polymers of conductive unit form alloy in the matrix resin and can for good and all keep antistatic effect.These hydrophilic compounds that contain conductive unit are different from low-molecular-weight surfactant type antistatic additive owing to molecular weight is higher, be called the agent of polymer electrolyte permanent anti-static.The agent of commercial polymer electrolyte permanent anti-static has polyethylene glycol methacrylic acid copolymer, polyether ester amides (PEEA), polyether ester acetamide (PEAI), polyethylene glycol oxide, epoxypropane copolymerization thing (PEO-ECH), PEGMA etc.But this class antistatic additive addition is bigger, the cost height, and heat resistance is relatively poor, and is used for difficulty in spinning.In recent years, utilize light inorganic conductive micro mist to develop light color or white conductive fiber.The volume resistance of conduction inorganic micro powder should be lower than 101 Ω cm.The light color micro mist has metal sulfide and halide such as copper sulfide, cuprous iodide; The white micro mist has metal oxides such as tin oxide, zinc oxide, silver oxide, and this class antistatic additive heat resistance is good, and antistatic effectiveness is lasting, be not subjected to the weather condition effect, but relatively poor with resin compatible, addition is big, the cost height, and color is arranged, be difficult to spinning or dyeing.
Summary of the invention
The object of the invention is to overcome the deficiency of above-mentioned technology, and a kind of production technology of full nylon leather base fabric is provided, and all adopts chinlon 6 section to be spun into the polyamide fibre short fiber, and makes full nylon leather base fabric with the needle punched non-woven fabrics production technology.
The present invention realizes the technical scheme that above-mentioned purpose adopts.The TENSILE STRENGTH of intensity, particularly broadwise that the technical problem key that it solved is how to avoid static adverse effect in the production process and how promotes base cloth.The present invention adopts the antistatic master granule after 1. adding preferably in slices of caprone, 2. by adjusting the preparation medium prescription, improving the mode that oils and the control rate that oils, 3. in the needle punched non-woven fabrics production process, increase the humidity in workshop, the mode of in manufacturing procedure, adding antistatic additive again.Under these measures, effectively avoided the generation of a large amount of static in the production process.In addition, by the mode of 1. adjusting the mixed and disorderly ratio in the combing and adopting cross lapping, the frequency when 2. adjusting acupuncture and the degree of depth.Under these two kinds of measures, effectively promote the TENSILE STRENGTH of the intensity, particularly broadwise of base cloth.
The production technology of this full nylon leather base fabric of the present invention, it comprises the following steps:
(1) preparation of polyamide fibre short fiber
(1) be 90～99 by weight with chinlon 6 section with antistatic master granule: 1～10 mixes;
(2) said mixture is entered the screw extruder with electric heating function through feed bin, make section be molten;
(3) above-mentioned molten material quantitatively is pressed into filament spinning component, is sprayed by spinnerets through measuring pump, and spun strand is carried out crystallisation by cooling, obtains growing filament just;
(4) just growing filament through coilings, the bucket that falls, boundling, drawing-off, the process that oils that oils in advance, curls, employing polyamide fibre short-fiber oil agent oils, the fiber of acquisition 1～3.5dtex fiber number;
(5) above-mentioned fiber drying typing, cut-out, gas delivery, packing are made polyamide fibre 6 antistatic short fibers dimension, i.e. polyamide fibre short fiber;
(2) needle punched non-woven fabrics production technology
(1) above-mentioned polyamide fibre short fiber is carried out the pre-treatment of nonwoven production with long curtain mixed cotton conveyer, first opener, granary cotton blender machine, refined opener to the polyamide fibre short fiber;
(2) after cotton feeding box, belt-type evereven, carding machine, cross lapping machine arrangement, polyamide fibre short fiber density, thickness are evenly distributed through the polyamide fibre short fiber after the pre-treatment;
(3) above-mentioned equally distributed polyamide fibre short fiber is made full nylon leather base fabric through pre-needling, main acupuncture, rolling technology.
Preferably, described antistatic master granule is to be combined for 1～8 part by alkali metal salt or 25～55 parts of alkyloyloxyethyl benzene sulfonates, 40～75 parts of polyethylene glycol oxides, 0.1～2 part of antioxidant tris phosphite, dispersant maleic anhydride inoculated polypropylene, and above-mentioned umber is weight portion.This antistatic additive master batch preparation technology is comparatively simple, and the antistatic master granule of preparation has good heat endurance and durability, and has good compatibility with slices of caprone.
Preferably, described screw rod machine temperature is divided into six districts, wherein 260～290 ℃ in screw rod machine one district, 280～300 ℃ in screw rod machine two districts, 285～300 ℃ in screw rod machine three districts, 275～285 ℃ in screw rod machine four districts, 265～275 ℃ in screw rod machine five districts, 260～270 ℃ in screw rod machine six districts, spinning body temperature is 260～270 ℃, 250～260 ℃ of melt temperatures, screw rod melt extrusion pressure 9～12MPa, the slices of caprone viscosity Control is 2.6～2.9, and convoluting speed is 700～1000m/min.
Preferably, described drawing-off total denier was 125～1,400,000 dawn, drawing-off linear velocity 120～150m/min, a drafting multiple 2～3, secondary drafting multiple 1.1～1.3.
Preferably, described polyamide fibre short-fiber oil agent prescription is: soft water 93～97%, polyoxyethylene oxypropylene ether emulsifying agent 1～2%, polyethers and little fat acid polyoxyethylene oxypropylene ester are pressed the smooth agent 0.1～1.5% that mass ratio mixes at 4: 1, the mixture antistatic additive 0.5～1.5% of single, double alkyl phosphate, auxiliary agent adopts polyol fatty acid ester or wetting and penetrating agent JFC 0.5～2%.
Emulsifying agent commonly used is a non-ionic surface active agent, and fatty alcohol-polyoxyethylene ether, polyoxyethylene carboxylate, alkylphenol polyoxyethylene, polyoxyethylene oxypropylene ether are arranged.Fatty alcohol-polyoxyethylene ether has unique emulsifiability to stearic acid, paraffin, mineral wet goods, but produces a large amount of cokings and high viscosity substance when high temperature, and sends a large amount of cigarettes.Alkylphenol polyoxyethylene belongs to the low emulsifying agent of being fuming, but its hot residual maximum, and because the existence of phenolic group, unsuitable biodegradation is unfavorable for environmental protection.The present invention selects for use polyoxyethylene oxypropylene ether as emulsifying agent, and it also has characteristics such as certain thermally-stabilisedly, low be fuming, coking is few except that having general emulsification property.
Adding smooth agent is the main means of control nylon fibre frictional behaviour, the main effect of smooth agent is exactly the coefficient of kinetic friction that reduces fiber and each contact component in the spinning process, reduce lousiness, broken end that strand causes because of excessive friction, and keep spinning tension stable; In order to make tow have good convergence and coherent, also must make fiber have suitable confficient of static friction simultaneously, confficient of static friction is low excessively, and the cohesive force between the fiber is just not enough, and tow is dispersed, and the silk of stumbling occurs, and moulding is bad.Therefore when component design, to take into account aspect these 2.Smooth agent commonly used has mineral oil, Acrawax and polyethers 3 big classes.The flatness of mineral oil is good, but since molecule too small and heat-resisting, wear no resistance; The flatness of Acrawax class is good, is difficult for decomposing; The polyethers A wide selection of colours and designs, heat-resisting, ABRASION RESISTANCE good, can resolve into water and carbon dioxide after the high-temperature heating, so noncoking, flatness is medium.Thin according to the extrusion spinning fiber number, self is easy to generate characteristics such as static, and the present invention adopts the main body smooth agent of polyethers smooth agent as the extrusion spinning finish, and is aided with a spot of synthetic ester and replenishes.
For further strengthening the antistatic property of nylon fibre, in spinning oil, add some antistatic additive.Antistatic additive is selected 1. antistatic behaviour from following main aspect; 2. the influence of humidity; 3. with the intersolubility of other component of spinning oil; 4. the silk and the coefficient of friction of metal; 5. the size of fiber volume fraction resistance.Antistatic additive helps the evacuation of electric charge at the hydrophilic adsorbed film that fiber surface forms.Secondly, antistatic additive also gives fiber surface level and smooth and soft characteristic, reduces the fiber coefficient of kinetic friction, has correspondingly reduced the generation of static.For reducing the static content that produces in the fiber process process, the mixture antistatic additive of the single, double alkyl phosphate that the present invention selects for use is except antistatic effect is good, maximum characteristics are good with the intermiscibility of polyethers, can have the character of polyethers and phosphate concurrently, have excellent antistatic energy and pyrolytic.
Preferably, the described mode of oiling is to curl into simultaneously with precision metering pump fuel feeding in proportion, guarantees the uniform and stable of fiber oil-containing, and the control dried oil content that oils is 0.5～0.7%.
Preferably, the fibre length of described cut-out technology controlling and process cut-out is controlled at 40～60mm.
Preferably, described curling technology is several 125～1,400,000 dawn at dawn of curling, compressed air pressure 0.6MPa, several 13 ± 2/25mm of thread crimping.
Preferably, want continuous humidification in the described needle punched non-woven fabrics production process, make the relative humidity in workshop remain on 65%～90%, thereby avoid the polyamide fibre short fiber to tie poly-phenomenon because of the generation of static.Other process conditions of described needle punched non-woven fabrics are: the mixed and disorderly ratio in the combing 1: 1.2～1: 2.5, folded net spee is 30～50m/min, 500～1000 times/min of punch frequency, depth of needling 5mm～18mm, post-processing temperature is 170～190 ℃, and post processing speed is 8～12m/min.
For further improving the cloth surface evenness, elimination base cloth inside is impacted the stress that is produced because of thorn at fiber, improves Density, increases DIMENSIONAL STABILITY, and the base cloth pressure is ironed the required thickness of process hides.Must select suitable post-processing temperature.The contraction that temperature is too high, speed is crossed slow then base cloth is excessive, and firm and hard feel is harder, and scrimp is obvious, has the roll banding phenomenon when serious.Otherwise, temperature is low excessively, the excessive velocities fiber does not reach yield situation, the stress of fabric is not complete obiteration also, and the effect of then finalizing the design is bad, and thickness has rebound phenomena, the cloth cover filoplume is obvious, therefore poor dimensional stability, yielding, must select rational post-processing temperature and speed, the preferred post-processing temperature of the present invention is 170 ~ 190 ℃, time 8 ~ 12m/min.
Preferably, obtained full nylon fibre leather base fabric specification is 180～320g/m2, and thickness is 0.90～1.1mm.
The effect that the present invention is useful: the mode that 1, add antistatic master granule in slices of caprone, adds antistatic additive in spinning oil makes the resistance of polyamide fibre staple fibre less than 108 Ω cm, on this basis, in the needle punched non-woven fabrics production technology, control airborne humidity and solved in the production of polyamide fibre base cloth to become to cause the problem of scoring a goal and folding net on net, the lapping machine equipment because of difficulty or ease in the poly-carding machine carding process that brings of a large amount of knot of static by strictness.2, by adjustment, reduced the damage of equipment, improved the mechanical property of needling non-woven synthetic leather base cloth effectively fiber to needing machine, carding machine technology.To the adjustment of mixed and disorderly ratio, the misdraft of folding the mode of netting and reducing the acupuncture district that intersects, make and indulge/laterally tear strong cutter especially near 1: 1.3, adopt belt-type reinforced, and, reduced free draw ratio, thereby improved the uniformity of needling non-woven leather base fabric the optimum organization of changeability segmentation control of lapping machine lapping speed and needling process from mixing well device.
Description of drawings
Fig. 1 is a polyamide fibre short fiber production technology schematic diagram of the present invention.
Fig. 2 is a full nylon leather production technology schematic diagram of the present invention.
The specific embodiment
The invention will be further described below in conjunction with specific embodiment: present embodiment has provided detailed embodiment and process being to implement under the prerequisite with the technical solution of the present invention, but protection scope of the present invention is not limited to following embodiment.
With reference to Fig. 1, a kind of antistatic nylon staple fibre is got by following method preparation:
(1) be 90～99 by weight with chinlon 6 section with antistatic master granule: 1～10 mixes;
(2) said mixture is entered the screw extruder with electric heating function through feed bin, make section be molten;
(3) above-mentioned molten material quantitatively is pressed into filament spinning component, is sprayed by spinnerets through measuring pump, and spun strand is carried out crystallisation by cooling, obtains growing filament just;
(4) just growing filament through coilings, the bucket that falls, boundling, drawing-off, oil in advance, curl and go up the wet goods process, employing polyamide fibre short-fiber oil agent oils, the fiber of acquisition 1～3.5dtex fiber number;
(5) above-mentioned fiber drying typing, cut-out, gas delivery, packing are made polyamide fibre 6 antistatic short fibers dimension, i.e. polyamide fibre short fiber.
Described antistatic master granule is to be combined by alkali metal salt or alkyloyloxyethyl benzene sulfonate, polyethylene glycol oxide, antioxidant tris phosphite, dispersant maleic anhydride inoculated polypropylene, and the weight ratio of chinlon 6 section and antistatic master granule is 96: 4.
Described screw rod machine temperature is divided into six districts, wherein 277 ℃ in screw rod machine one district, 290 ℃ in screw rod machine two districts, 295 ℃ in screw rod machine three districts, 280 ℃ in screw rod machine four districts, 267 ℃ in screw rod machine five districts, 263 ℃ in screw rod machine six districts.Spinning body temperature is 260 ℃, 255 ℃ of melt temperatures, and screw rod melt extrusion pressure 10MPa, the slices of caprone viscosity Control is 2.78, and convoluting speed is 800m/min.
Described drawing-off total denier was 1,320,000 dawn, drawing-off linear velocity 135 ~ 140m/min, a drafting multiple 2 ~ 3, secondary drafting multiple 1.1 ~ 1.2.
Described polyamide fibre short-fiber oil agent prescription is: soft water 95.6%, polyoxyethylene oxypropylene ether emulsifying agent 2.1%, polyethers and little fat acid polyoxyethylene oxypropylene ester are pressed the smooth agent 0.5% that mass ratio mixes at 4: 1, the mixture antistatic additive 1.1% of single, double alkyl phosphate, other auxiliary agents (polyol fatty acid ester, wetting and penetrating agent JFC) 0.7%.
The described mode of oiling is to curl into simultaneously with precision metering pump fuel feeding in proportion, guarantees the uniform and stable of fiber oil-containing.And controlling the dried oil content that oils is 0.5 ~ 0.7%.
Described curling technology is several 1,350,000 dawn at dawn of curling, compressed air pressure 0.6MPa, several 13 ± 2/25mm of thread crimping.
Make the performance such as the following table 1 of antistatic nylon staple fibre:
Table 1
| Test item | Testing result | Test item | Testing result |
| Line density dtex | 2.30 | Length variation rate % | 3.9 |
| Line density deviation % | 3.60 | Regain % | 1.8 |
| Fracture strength CN/dtex | 5.20 | Oil content % | 0.5 |
| Fracture strength CV% | 16.6 6 | Fault content mg/100g | 0 |
| Elongation at break % | 70.2 4 | Over-length fibre content mg/100g | 10 |
| Elongation at break CV% | 18.7 1 | Curl several/25mm | 14 |
| Principal length mm | 53 | Than resistance Ω cm | ρv＝8.3×107 |
| Nominal length mm | 51 |
The result shows, by adding antistatic master granule, and add antistatic master granule in the spinning oil, resulting polyamide fibre staple fibre is greatly reduced than resistance, the needs of the harmless technology of polyamide fibre acupuncture can have been satisfied, by each technological parameter of strict control staple fibre production, prepared polyamide fibre staple fibre has advantages such as intensity height, line density is little, elongation at break is high, fault is few in addition.
With reference to Fig. 2, a kind of full nylon leather base fabric is got by following method preparation:
(1) above-mentioned polyamide fibre short fiber is carried out the pre-treatment of nonwoven production with long curtain mixed cotton conveyer, first opener, granary cotton blender machine, refined opener to the polyamide fibre short fiber.
(2) after cotton feeding box, belt-type evereven, carding machine, cross lapping machine arrangement, polyamide fibre short fiber density, thickness are evenly distributed through the polyamide fibre short fiber after the pre-treatment.
(3) above-mentioned equally distributed polyamide fibre short fiber is made full nylon leather base fabric through technologies such as pre-needling, main acupuncture, rolling.
Adopting the above-mentioned polyamide fibre staple fibre that makes is raw material, and described specification is: line density 2.3dtex, length 51mm.
Want continuous humidification in the described needle punched non-woven fabrics production process, make the relative humidity in workshop remain on 70% ~ 80%, thereby avoid the polyamide fibre short fiber to tie poly-phenomenon because of the generation of static.Other process conditions of described needle punched non-woven fabrics are: the mixed and disorderly ratio 1.8 in the combing, folded net spee is 30 ~ 50m/min.80 times/min of punch frequency, depth of needling 12mm, post-processing temperature are 180 ~ 185 ℃, post processing speed is 10m/min.
Table 2
The result shows, the cloth cover uniformity height of prepared full nylon leather base fabric, and close to tearing load in length and breadth, this is very favorable in daily use.
Claims (9)
1. the production technology of a full nylon leather base fabric, it is characterized in that: it comprises the following steps:
(1) preparation of polyamide fibre short fiber
(1) be 90～99 by weight with chinlon 6 section with antistatic master granule: 1～10 mixes;
(2) said mixture is entered the screw extruder with electric heating function through feed bin, make section be molten;
(3) above-mentioned molten material quantitatively is pressed into filament spinning component, is sprayed by spinnerets through measuring pump, and spun strand is carried out crystallisation by cooling, obtains growing filament just;
(4) just growing filament through coilings, the bucket that falls, boundling, drawing-off, the process that oils that oils in advance, curls, employing polyamide fibre short-fiber oil agent oils, the fiber of acquisition 1～3.5dtex fiber number;
(5) above-mentioned fiber drying typing, cut-out, gas delivery, packing are made polyamide fibre 6 antistatic short fibers dimension, i.e. polyamide fibre short fiber;
(2) needle punched non-woven fabrics production technology
(1) above-mentioned polyamide fibre short fiber is carried out the pre-treatment of nonwoven production with long curtain mixed cotton conveyer, first opener, granary cotton blender machine, refined opener to the polyamide fibre short fiber;
(2) after cotton feeding box, belt-type evereven, carding machine, cross lapping machine arrangement, polyamide fibre short fiber density, thickness are evenly distributed through the polyamide fibre short fiber after the pre-treatment;
(3) above-mentioned equally distributed polyamide fibre short fiber is made full nylon leather base fabric through pre-needling, main acupuncture, rolling technology;
Described antistatic master granule is to be combined for 1～8 part by alkali metal salt or 25～55 parts of alkyloyloxyethyl benzene sulfonates, 40～75 parts of polyethylene glycol oxides, 0.1～2 part of antioxidant tris phosphite, dispersant maleic anhydride inoculated polypropylene, and above-mentioned umber is weight portion.
2. full nylon leather base fabric production technology according to claim 1, it is characterized in that: described screw extruder temperature is divided into six districts, wherein screw extruder one district is 260～290 ℃, 280～300 ℃ in screw extruder two districts, 285～300 ℃ in screw extruder three districts, 275～285 ℃ in screw extruder four districts, 265～275 ℃ in screw extruder five districts, 260～270 ℃ in screw extruder six districts, spinning body temperature is 260～270 ℃, 250～260 ℃ of melt temperatures, screw rod melt extrusion pressure 9～12MPa, the slices of caprone viscosity Control is 2.6～2.9, and convoluting speed is 700～1000m/min.
3. full nylon leather base fabric production technology according to claim 1 is characterized in that: described drawing-off total denier was 125～1,400,000 dawn, drawing-off linear velocity 120～150m/min, a drafting multiple 2～3, secondary drafting multiple 1.1～1.3.
4. full nylon leather base fabric production technology according to claim 1, it is characterized in that: described polyamide fibre short-fiber oil agent prescription is: soft water 93～97%, polyoxyethylene oxypropylene ether emulsifying agent 1～2%, polyethers and little fat acid polyoxyethylene oxypropylene ester are pressed the smooth agent 0.1～1.5% that mass ratio mixes at 4: 1, the mixture antistatic additive 0.5～1.5% of single, double alkyl phosphate, auxiliary agent adopts polyol fatty acid ester or wetting and penetrating agent JFC 0.5～2%.
5. full nylon leather base fabric production technology according to claim 1 is characterized in that: the described mode of oiling is to curl into simultaneously with precision metering pump fuel feeding in proportion, and the control dried oil content that oils is 0.5～0.7%.
6. full nylon leather base fabric production technology according to claim 1 is characterized in that: the fibre length that described cut-out technology controlling and process is cut off is controlled at 40～60mm.
7. full nylon leather base fabric production technology according to claim 1 is characterized in that: described curling technology is several 125～1,400,000 dawn at dawn of curling, compressed air pressure 0.6MPa, several 13 ± 2/25mm of thread crimping.
8. full nylon leather base fabric production technology according to claim 1, it is characterized in that: want continuous humidification in the described needle punched non-woven fabrics production process, make the relative humidity in workshop remain on 65%～90%, other process conditions of described needle punched non-woven fabrics are: the mixed and disorderly ratio in the combing 1: 1.2～1: 2.5, folded net spee is 30～50m/min, 500～1000 times/min of punch frequency, depth of needling 5mm～18mm, post-processing temperature is 170～190 ℃, and post processing speed is 8～12m/min.
9. full nylon leather base fabric production technology according to claim 1 is characterized in that: obtained full nylon fibre leather base fabric specification is 180～320g/m
2, thickness is 0.90～1.1mm.
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| CN101671918A (en) | 2010-03-17 |
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