CN101798763B - Superfine fiber polyurethane synthesis leather and preparation method thereof - Google Patents
Superfine fiber polyurethane synthesis leather and preparation method thereof Download PDFInfo
- Publication number
- CN101798763B CN101798763B CN200910260591.5A CN200910260591A CN101798763B CN 101798763 B CN101798763 B CN 101798763B CN 200910260591 A CN200910260591 A CN 200910260591A CN 101798763 B CN101798763 B CN 101798763B
- Authority
- CN
- China
- Prior art keywords
- superfine
- polyurethane
- leather
- fiber
- nonwoven fabric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention provides superfine fiber polyurethane synthesis leather, comprising non-woven fabric and polyurethane dipped in the non-woven fabric. The non-woven fabric is prepared from double-component superfine fibers, and the double components in the double-component superfine fibers are polyamide superfine fibers and polyester superfine fibers. The double-component superfine fibers comprise framework fibers in radial arrangement and ceasma fibers filled among the framework fibers, and the double components respectively form the framework fibers and the ceasma fibers. The superfine fiber polyurethane synthesis leather provided by the invention contains the polyester superfine fibers and the polyamide superfine fibers, thereby the synthesis leather retains the performances of the two superfine fibers, and has both the stiffness of terylene and the plasticity of nylon.
Description
Technical field
The present invention relates to artificial leather field, be specifically related to a kind of superfine fiber polyurethane leather and preparation method thereof.
Background technology
Artificial leather is widely used because having wear-resisting, heat-resisting, cold tolerance, higher toughness and TENSILE STRENGTH preferably.The artificial leather that nonwoven fabric is produced after PU (polyurethane) resin impregnated is called PU synthetic leather, PU synthetic leather has decorative pattern and the gloss of natural leather, and it is high with its rich color, intensity, be not easy the characteristics such as damage is widely used in the industries such as shoe industry, rag trade, case and bag industry, physical culture industry, automobile making.
Superfine fibre PU synthetic leather is to have the artificial leather that fiber number is less than the ultra-fine fiber construction of 0.33dtex, owing to having brought into play the strong absorptive of superfine fibre, has therefore possessed the hygroscopicity comparing favourably with natural leather.In addition, superfine fiber polyurethane leather has also surpassed natural leather at aspects such as chemical resistance, mildew-resistant sex change, quality homogeneity and machinabilitys.
In the prior art, the preparation technology of superfine fiber polyurethane leather is: prepare the impregnation → dyeing of compound islands-in-sea type fibre → manufacture nonwoven fabric → nonwoven fabric.Be specially: first use co-blended spinning method after polyester and polyamide blended, melting, extrusion molding, drafting forming, to form the compound islands-in-sea type fibre that comprises sea component and island component, then by described compound islands-in-sea type fibre carry out combing, nonwoven fabric is made in acupuncture.Then, use polyurethane to carry out impregnation processing to nonwoven fabric, be about to filling polyurethane in the fibre gap of nonwoven fabric.Finally, then form polyester superfine fibre or superfine polyamide fiber by removal sea component or the island component of solvent selectivity, more finally make superfine fiber polyurethane leather after synthetic leather being dyeed with dyestuff.
Under prior art, owing to need to adopting removal sea component or the island component of solvent selectivity to form polyester superfine fibre or superfine polyamide fiber, therefore the superfine fiber chemical leather that adopts compound island fibre method to make can only retain a kind of fiber of component, as nylon (polyamide fiber) or terylene (polyester fiber), and the feature of nylon is too soft, the feature of terylene is that rigidity is too strong, thus, when the leather finally obtaining only retains nylon component, although soft, good hand touch, but poor rigidity, cause the problem of " leather is not endured "; And while only retaining terylene component, rigidity is too strong, feel is hardened.In addition in ，Fei Ding island microfiber leather production process, single precursor Zhong island number is uncontrollable, and the size on island, quantity, distribution and length thereof all exist randomness.
Inventor's consideration, if retain the fiber of polyester fiber and these two kinds of components of polyamide fiber in superfine fiber polyurethane leather simultaneously, the deflection that can make superfine fiber polyurethane leather can possess terylene can be taken into account the flexibility of nylon again.
Summary of the invention
In view of this, the technical problem that the present invention solves is, a kind of superfine fiber polyurethane leather is provided, in described superfine fiber polyurethane leather, retains polyester superfine fibre and polyurethane superfine fibre so that synthetic leather can possess the deflection of terylene simultaneously and can take into account the flexibility of nylon again.
In order to solve above technical problem, the invention provides a kind of superfine fiber polyurethane leather, comprise nonwoven fabric and form containing the superfine fibre being immersed in described nonwoven fabric, bi-component in described superfine fibre is superfine polyamide fiber and polyester superfine fibre, described bi-component superfine fibre comprises and is the fibrous skeleton of radial arrangement and is filled in the sliver fiber between described fibrous skeleton, and described bi-component forms respectively described fibrous skeleton and described sliver fiber.
Preferably, there is the fine hair of 10 μ m～200 μ m on the surface of described superfine fiber polyurethane leather.
Preferably, the length of described fine hair is 20 μ m～50 μ m.
The present invention also provides a kind of preparation method of superfine fiber polyurethane leather, comprising:
Superfine fiber polyurethane leather is provided, described superfine fiber polyurethane leather comprises nonwoven fabric and containing being immersed in the polyurethane in described nonwoven fabric, described nonwoven fabric is made by bi-component superfine fibre, bi-component in described bi-component superfine fibre is superfine polyamide fiber and polyester superfine fibre, described bi-component superfine fibre comprises and is the fibrous skeleton of radial arrangement and is filled in the sliver fiber between described fibrous skeleton, and described bi-component forms respectively described fibrous skeleton and described sliver fiber;
The polish surface of described superfine fiber polyurethane leather forms fine hair;
To described, be with the superfine fiber polyurethane leather villous processing of dyeing;
Superfine fiber polyurethane leather after dyeing is processed carries out Overlaying process, on the surface of described superfine fiber polyurethane leather, forms polyurethane coating.
Preferably, described Overlaying process is specially:
Dry method veneer is carried out on superfine fiber polyurethane leather surface after dyeing is processed;
Dry described superfine fiber polyurethane leather solidifies described polyurethane coating.
Preferably, described dry temperature is 80 ℃～130 ℃.
Preferably, the thickness of described polyurethane coating is 0.06mm～0.2mm.
Preferably, the length of described fine hair is 10 μ m～200 μ m.
Preferably, described dyeing is processed the dyestuff using and is comprised by weight: 63%～78% ACID DYES, and 13%～29% disperse dyes, surplus is premetallized dye.
The invention provides a kind of superfine fiber polyurethane leather, comprise nonwoven fabric and contain and be immersed in the polyurethane in described nonwoven fabric, described nonwoven fabric is made by bi-component superfine fibre, bi-component in described bi-component superfine fibre is superfine polyamide fiber and polyester superfine fibre, described bi-component superfine fibre comprises and is the fibrous skeleton of radial arrangement and is filled in the sliver fiber between described fibrous skeleton, and described bi-component forms respectively described fibrous skeleton and described sliver fiber.Superfine fiber polyurethane leather provided by the invention contains polyester superfine fibre and superfine polyamide fiber, has therefore retained the performance of two kinds of superfine fibres, makes synthetic leather can also keep the flexibility of nylon when possessing the deflection of terylene.
Accompanying drawing explanation
Fig. 1, spinneret pore structure schematic diagram provided by the invention;
The schematic diagram of Fig. 2, bicomponent composite fibre provided by the invention;
The SEM photo of the nonwoven fabric impregnation base cloth of Fig. 3, the embodiment of the present invention 1 preparation;
The superfine fiber polyurethane leather SEM photo of Fig. 4, the embodiment of the present invention 1 preparation;
The superfine fiber polyurethane leather SEM photo of Fig. 5, the embodiment of the present invention 2 preparations;
The superfine fiber polyurethane leather SEM photo of Fig. 6, the embodiment of the present invention 3 preparations.
The specific embodiment
Superfine fiber polyurethane leather provided by the invention, comprising:
Nonwoven fabric and containing being immersed in the polyurethane in described nonwoven fabric, described nonwoven fabric is made by bi-component superfine fibre, bi-component in described bi-component superfine fibre is superfine polyamide fiber and polyester superfine fibre, described bi-component superfine fibre comprises and is the fibrous skeleton of radial arrangement and is filled in the sliver fiber between described fibrous skeleton, and described bi-component forms respectively described fibrous skeleton and described sliver fiber.
Superfine fiber polyurethane leather provided by the invention is prepared according to following technique: preparation bi-component is the bicomponent composite fibre of polyester and polyamide, then bicomponent composite fibre is made to nonwoven fabric, then in nonwoven fabric, impregnation polyurethane obtains nonwoven fabric impregnation base cloth, then open the fine nonwoven fabric impregnation base cloth of processing and make polyester components polyester superfine fibre and the superfine polyamide fiber of obtaining separated with polyamide component, make the Synthetic Leather that contains bi-component superfine fibre.
According to the present invention, while preparing bicomponent composite fibre, getting polyester slice puts into polyester screw extruder, gets polyamide section and put into polyamide screw extruder melting mixing, wherein, the melting temperature of polyester slice is preferably 270 ℃～290 ℃, and the melting temperature of polyamide section is preferably 270 ℃～290 ℃.Then, the polyester after mixing and polyamide are passed through to spinnerets extrusion molding, obtain as-spun fibre.According to the present invention, described spinnerets has the spinneret orifice of tangerine flap, as shown in Figure 1, is the schematic cross-section of spinneret orifice, described spinneret orifice 11 cross sectional shapes are circular, comprise being a plurality ofly the skeleton extrusion cavities 11a of radial arrangement and by described skeleton, being extruded the sliver extrusion cavities 11b at interval.Like this, two components of described polyester and polyamide can be extruded formation composite fibre by described skeleton extrusion cavities and described sliver extrusion cavities respectively, as shown in Figure 2, the component of extruding from described skeleton extrusion cavities forms the skeleton portion 2 of fiber, and the component of extruding from described sliver extrusion cavities forms the sliver portion 1 of fiber.
According to the present invention, described sliver portion: skeleton portion is 15: 85～30: 70 in mass ratio, more preferably 20: 80～25: 75.Described polyester can be used as sliver portion, and now polyamide is as skeleton portion.Described polyester also can be used as skeleton portion, and now polyamide is as sliver portion.For the quantity of the extrusion cavities of skeleton described in spinneret orifice, there is no particular restriction, can be 4～20.In Fig. 1, the quantity of skeleton extrusion cavities is 8, can form like this sliver fiber of 8 distinguish.
According to the present invention, can be by described as-spun fibre through at least one-level drawing-off, total draft multiple is preferably 3～4 times; As-spun fibre after drawing-off is oiled with silanes finish, after 70 ℃～80 ℃ laxation shapings, cut off, cut into 45mm～55mm sliver type composite fibre.
Described polyester can be selected following at least one polymer: polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, poly terephthalic acid-1,4-hexamethylene dimethyl ester or poly-2,6-naphthalene diacid second diester, is preferably polyethylene terephthalate and polybutylene terephthalate.
Described polyamide can be selected following at least one polymer: polycaprolactam (PA-6), polyhexamethylene adipamide (PA-66), nylon 46, poly hexamethylene adipamide pentanediamine, poly-hexanoyl heptamethylene diamine, polyoctamethylene adipamide, polynonamethylene adipamide, poly hexamethylene adipamide agent decamethylene diamine, be preferably polycaprolactam and polyhexamethylene adipamide.
Prepare after sliver type composite fibre, described sliver type composite fibre can be prepared to nonwoven fabric according to method well known to those skilled in the art, be about to sliver type composite fibre after shredding, combing, nonwoven fabric is made in acupuncture, depth of needling is: 1mm～11mm, needling density is 1000 pins/cm
2～5000 pins/cm
2, density is preferably 0.15g/cm
3～0.35g/cm
3, grammes per square metre is preferably 280g/m
2～800g/m
2.
Prepare after nonwoven fabric, nonwoven fabric is imported in PVA impregnation machine and carries out impregnation, then after the dryness finalization of 100 ℃～150 ℃, obtain the first impregnation base cloth.According to the present invention, PVA maceration extract preferably includes in mass concentration: 1%～3% polyvinyl alcohol, and surplus is water, for PVA impregnation machine, can use equipment well known to those skilled in the art, to this present invention, there is no particular restriction.
Through PVA, containing after immersion liquid impregnation, by carrying out impregnation in described the first impregnation base cloth importing polyurethane impregnation machine, obtain the second impregnation base cloth.Polyurethane impregnated liquid used, in mass concentration, preferably includes: 12%～20% polyurethane, 1%～3.2% impregnation auxiliary agent, surplus are DMF, and polyurethane impregnated liquid is by adjusting medicine systematic quantification to supply with impregnator.
After polyurethane impregnation, described the second impregnation base cloth is imported in coagulating basin and solidified, solidification liquid in coagulating basin preferably includes in mass concentration: 29%～39% DMF (dimethyl formamide), and surplus is water, solidification liquid temperature is 30 ℃～38 ℃; Base cloth after solidifying is imported to rinsing bowl, preferably with the water of 60 ℃～100 ℃, clean, then import in dryer and be dried and obtain Synthetic Leather at 130 ℃～150 ℃.
According to the present invention, described polyurethane can be used for one or more following collocation containing the polyurethane in immersion liquid: polyester-type, polyether-type, polycarbonate type etc.
Described polyurethane refers to ability surfactant known by the technical staff containing the impregnation auxiliary agent in immersion liquid, as cationic surfactant, non-ionic surface active agent or anion surfactant, object lesson can: one or more in sodium lauryl sulfate, lauryl sulfate ammonium, polyoxyethylene tridecyl ether sodium acetate, neopelex, alkyl diphenyl ether disulphonic acid sodium, disodium sulfosuccinate, but be not limited to this.
After nonwoven fabric impregnation is processed, nonwoven fabric impregnation base cloth is flooded in diluted alkaline pond, in diluted alkaline pond, contain mass concentration and be preferably 1%～5% sodium hydrate aqueous solution.Again the Synthetic Leather of dipping sig water is put into high temperature steam box, steam box temperature is made as 80 ℃～100 ℃, then the cold water of the Synthetic Leather steaming being put into 5 ℃～20 ℃ is cooling, then by ultrasonic wave, opens fibre, machinery and rub out fibre, high temperature and rub out the physics fiber opening method such as fine and make the sliver portion of composite fibre separated with skeleton portion.
According to the present invention, described machinery is rubbed out fibre and is referred to that at room temperature rubbing synthetic leather reaches the object that makes polyester components separated with polyamide component, and for the method for rubbing, there is no particular restriction.Described high temperature is rubbed preferred under the condition of 80 ℃～120 ℃ of temperature, rubs synthetic leather and makes polyester components separated with polyamide component.
According to the present invention, ultrasonic drilling machine quantity is preferably made as 5～10, ultrasonic intensity is preferably made as 5A～15A, machinery is rubbed number of times and is preferably made as 5～7 sections, high temperature is rubbed temperature and is preferably made as 90 ℃～110 ℃, after the above-mentioned Synthetic Leather of opening after fine processing is carried out to neutralisation treatment, washing by method well known in the art, expanding is dry, finally makes superfine fiber polyurethane leather.
Can carry out napping processing to superfine fiber polyurethane leather, napping is processed and is referred to the surface formation fine hair with sand papering Synthetic Leather according to method well known to those skilled in the art, preferably uses 50
#～600
#sand paper polish, more preferably use 100
#～400
#sand paper is polished, and more preferably uses 200
#～300
#sand paper polish.When napping is processed, can one side napping process, also can two-sided napping process.After napping is processed, the villus length on superfine fiber polyurethane leather surface is preferably 20 μ m～100 μ m, more preferably 30 μ m～80 μ m, more preferably 40 μ m～50 μ m.Superfine fiber polyurethane leather, after napping is processed, obtains matte superfine fiber polyurethane leather.
According to the present invention, napping is processed and is obtained after matte superfine fiber polyurethane leather, can be to its processing of dyeing, described dyestuff preferably includes by weight: 63%～78% ACID DYES, 13%～29% decentralized dyestuff and the premetallized dye of surplus.When suede is dyeed, preferably use described dyestuff preparation, bath raio is 1: 10～1: 20.
According to the present invention, ACID DYES in described dyestuff is preferably one or more in fused polycycle based dye and azo based dye, is preferably one or more in indigo system, quinoline system, phthalocyanine system, benzimidazolone system, condensation azo system, azomethine azo based dye.Described decentralized dyestuff is preferably a kind of in anthraquinone type and heterocyclic type dyestuff or their mixture.Described premetallized dye is preferably oiliness premetallized dye or water oil amphoteric metal complex dye.
While carrying out described Overlaying process, preferably by polyurethane coating through dry method veneer, then dryly obtain smooth leather, the thickness of surperficial polyurethane coating coating is preferably 0.06mm～0.2mm, more preferably 0.10mm～0.15mm.Described dry temperature is preferably 80 ℃～130 ℃, and more preferably 90 ℃～120 ℃, more preferably 95～115 ℃.
In order further to understand the present invention, below in conjunction with embodiment, the preferred embodiment of the invention is described.
Embodiment 1
1, prepare composite fibre
Getting 25 parts cuts into slices and puts into Direct-spinning of PET Fiber screw extruder at 280 ℃ of melting mixings polyethylene terephthalate; Get 75 parts of polycaprolactam sections and put into polyamide spinning screw extruder at 280 ℃ of melting mixings.By the mixing product of two screw extruders through 8 distinguish spinnerets extrusion moldings as shown in Figure 2, following examples all adopt this spinnerets extrusion molding, obtain the as-spun fibre of 8 distinguish, described as-spun fibre is comprised of fiber reinforcement portion and the sliver portion that is filled between described fiber reinforcement, wherein fiber reinforcement portion composition is polyethylene terephthalate, and sliver portion composition is polycaprolactam;
By as-spun fibre, successively through 1.8 times, the drawing-off of 1.7 multiples, by concentration, be that 4wt% siloxanes finish oils, after 70 ℃ of HEAT SETTING, obtain composite fibre, be then cut into the composite short fiber of 50mm.
2, prepare nonwoven fabric:
The composite short fiber that step 1 is made is opened bag, and it is 0.22g/cm that density is made in combing, acupuncture
3, grammes per square metre is 520g/cm
2nonwoven fabric.
3, nonwoven fabric impregnation:
The nonwoven fabric that step 2 is made imports in PVA impregnation machine and carries out impregnation, and PVA maceration extract, in mass concentration, comprising: 2% polyvinyl alcohol and excess water; Nonwoven fabric is dried and obtains the first impregnation base cloth at 100 ℃;
The first impregnation base cloth is imported in polyurethane impregnation machine and carries out impregnation, polyurethane impregnated liquid, in mass concentration, comprising: polyurethane resin P-138 for 16% wet-method synthetic leather (Shandong Yu Tian chemical company provides), 2.2% sodium lauryl sulfate and surplus DMF; After polyurethane impregnation, obtain the second impregnation base cloth;
The second impregnation base cloth is imported in coagulating basin and solidified, and in coagulating basin, solidification liquid comprises in mass concentration: 35% dimethyl formamide and excess water, and solidification liquid temperature is 34 ℃;
After base cloth after solidifying is cleaned with the water of 80 ℃, at 140 ℃, dry, make Synthetic Leather, sampling scanning electron microscopic observation, microscopic appearance, as Fig. 3, can be observed obvious microcellular structure.
4, open fine processing:
Dried Synthetic Leather is flooded in diluted alkaline pond, in diluted alkaline pond, contain mass concentration and be 3% sodium hydrate aqueous solution, to after the Synthetic Leather after dipping, put into high temperature steam box, steam box temperature is made as 90 ℃, then the cold water of the Synthetic Leather steaming being put into 15 ℃ is cooling, by ultrasonic wave, open fibre again, machinery is rubbed out fibre, high temperature is rubbed out fibre, the quantity of ultrasonic processor is 7, ultrasonic intensity is made as 12A, it is 6 sections that machinery is rubbed hop count, it is 100 ℃ that high temperature is rubbed temperature, by the above-mentioned Synthetic Leather neutralisation treatment of opening after fine processing, after washing, expanding is dry, make superfine fiber polyurethane leather, sampling is observed with SEM, microscopic appearance is as Fig. 4, can be observed sliver portion separated with skeleton portion, formed superfine fibre, measure Leather Properties and list in table 1.
Embodiment 2
1, prepare composite fibre
In this example, while preparing composite fibre, polyethylene terephthalate: polycaprolactam is by weight: 75: 25; Wherein, polyethylene terephthalate forms sliver portion, and polycaprolactam forms skeleton portion; Other spinning technique is identical with embodiment 1, makes composite fibre.
2, prepare nonwoven fabric
Getting described composite fibre opens bag, combing, acupuncture and makes density 0.23g/cm
3, grammes per square metre is 525g/cm
2nonwoven fabric.
3, nonwoven fabric impregnation
PVA maceration extract comprises by weight: 3% polyvinyl alcohol and excess water;
Polyurethane impregnated liquid comprises by weight: polyurethane resin P-138 for 20% wet-method synthetic leather (Shandong Yu Tian chemical company provides), 2.8% lauryl sulfate ammonium and surplus DMF;
Solidification liquid comprises by weight: 39% dimethyl formamide and excess water;
Other technique of nonwoven fabric impregnation is identical with embodiment 1.
4, fiber opening process
The separated polyester components of fiber opening process and polyamide component that employing is identical with embodiment 1, obtain superfine fiber polyurethane leather, and sampling is observed with SEM, microscopic appearance is as Fig. 5, can be observed sliver portion separated with skeleton portion, formed superfine fibre, measure Leather Properties and list in table 1.
Embodiment 3
1, prepare composite fibre
In this example, while preparing composite fibre, polyethylene terephthalate: polycaprolactam is by weight: 70: 30; Wherein, polyethylene terephthalate forms sliver portion, and polycaprolactam forms skeleton portion; Other spinning technique is identical with embodiment 1, makes composite fibre.
2, prepare nonwoven fabric
Getting described composite fibre opens bag, combing, acupuncture and makes density 0.24g/cm
3, grammes per square metre is 536g/cm
2nonwoven fabric.
3, nonwoven fabric impregnation
PVA maceration extract comprises by weight: 1.5% polyvinyl alcohol and excess water;
Polyurethane impregnated liquid comprises by weight: polyurethane resin P-138 for 15% wet-method synthetic leather (Shandong Yu Tian chemical company provides), 2.1% lauryl sulfate ammonium and surplus DMF;
Solidification liquid comprises by weight: 30% dimethyl formamide and excess water;
Other technique of nonwoven fabric impregnation is identical with embodiment 1.
4, fiber opening process
The separated polyester components of fiber opening process and polyamide component that employing is identical with embodiment 1, obtain superfine fiber polyurethane leather, and sampling is observed with SEM, and microscopic appearance, as Fig. 6, can be observed sliver portion separated with skeleton portion, measures Leather Properties and list in table 1.
Embodiment 4
The superfine fiber polyurethane leather that embodiment 1 is made is with 400
#rubber paper carries out one side polishing on roughing-up machine, and making surperficial superfine fibre average fluff length is 120um suede;
The dyestuff that following composition is provided, comprises by weight: 30% acid black 1 09,20% Indian yellow 19,20% azogeramine 31,21% the blue 2BLN of dispersion and surplus palm fibre BN-43-D; It is that the dye bath of 1: 15 packs in dyeing machine that described dyestuff is mixed with to bath raio;
Get described suede and carry out putting into dyeing machine after preheating at 45 ℃, dye bath is warming up to 105 ℃ with the speed of 2 ℃/min, be incubated after 40 minutes the speed with 3 ℃/min again and be cooled to 50 ℃; Suede after dyeing, with being dried and obtaining suede at 95 ℃ after the water cleaning of 80 ℃, is measured to suede performance and listed in table 1.
Embodiment 5
Get superfine fiber polyurethane leather that embodiment 2 makes with 400
#rubber paper carries out one side polishing on roughing-up machine, and making surperficial superfine fibre average fluff length is 120um suede;
Adopt the dyeing identical with embodiment 5 to prepare suede;
Measure veneer leather performance and list in table 1.
Embodiment 6
Get superfine fiber polyurethane leather that embodiment 3 makes with 400
#rubber paper carries out one side polishing on roughing-up machine, and making surperficial superfine fibre average fluff length is 120um suede;
Adopt the dyeing identical with embodiment 5 to prepare suede;
Superfine fiber polyurethane leather performance (QB/T2888) prepared by table 1 embodiment of the present invention
The evaluation and test of superfine fiber polyurethane leather sense of touch:
Tester: 15 leather sales forces
Test sample: the artificial leather of the embodiment of the present invention 1 to 6 preparation and commercially available terylene leather, nylon leather, numbering is followed successively by: 1,2,3,4,5,6,7,8
Tester catches and touches leather sheet material, uses following evaluation criterion, and evaluation result is determined by maximum evaluations.
Sense of touch evaluation criterion:
Zero: fabric is partially soft
●: fabric is partially hard
⊙: fabric is suitably stiffening, and flexibility is moderate
Evaluation result: as table 2:
Table 2, the artificial Synthetic Leather composition of superfine fibre and sense of touch test result
From above-mentioned result of the test, superfine fiber polyurethane leather provided by the invention contains polyester superfine fibre and superfine polyamide fiber simultaneously, has therefore had the deflection of terylene and the flexibility of nylon concurrently, has fabulous elasticity and feel.
To the invention provides superfine fiber polyurethane leather and preparation method thereof, be described in detail above.Applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (6)
1. a preparation method for superfine fiber polyurethane leather, comprising:
Superfine fiber polyurethane leather is provided, described superfine fiber polyurethane leather comprises nonwoven fabric and containing being immersed in the polyurethane in described nonwoven fabric, described nonwoven fabric is made by bi-component superfine fibre, bi-component in described bi-component superfine fibre is superfine polyamide fiber and polyester superfine fibre, described bi-component superfine fibre comprises and is the fibrous skeleton of radial arrangement and is filled in the sliver fiber between described fibrous skeleton, and described bi-component forms respectively described fibrous skeleton and described sliver fiber;
Described nonwoven fabric first imports in polyvinyl alcohol maceration extract and obtains carrying out polyurethane impregnation after the first impregnation base cloth; Maceration extract contains 1%～3% polyvinyl alcohol in mass concentration, all the other are water;
The nonwoven fabric of polyurethane impregnation carries out the sliver portion of composite fibre after flooding in diluted alkaline pond separated with skeleton portion; In diluted alkaline pond, with mass concentration, count 1%～5% sodium hydrate aqueous solution;
The polish surface of described superfine fiber polyurethane leather forms fine hair;
To being with the superfine fiber polyurethane leather villous processing of dyeing;
Superfine fiber polyurethane leather after dyeing is processed carries out Overlaying process, on the surface of described superfine fiber polyurethane leather, forms polyurethane coating.
2. preparation method according to claim 1, is characterized in that, described Overlaying process is specially:
Superfine fiber polyurethane leather surface after dyeing is processed is carried out dry method veneer and is formed polyurethane coating;
Dry described superfine fiber polyurethane leather solidifies described polyurethane coating.
3. preparation method according to claim 2, is characterized in that, described dry temperature is 80 ℃～130 ℃.
4. preparation method according to claim 1, is characterized in that, the thickness of described polyurethane coating is 0.06mm～0.2mm.
5. preparation method according to claim 1, is characterized in that, the length of described fine hair is 10～200 μ m.
6. preparation method according to claim 1, is characterized in that, described dyeing is processed the dyestuff using and comprised by weight: 63%～78% ACID DYES, and 13%～29% disperse dyes, surplus is premetallized dye.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910260591.5A CN101798763B (en) | 2009-12-21 | 2009-12-21 | Superfine fiber polyurethane synthesis leather and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910260591.5A CN101798763B (en) | 2009-12-21 | 2009-12-21 | Superfine fiber polyurethane synthesis leather and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101798763A CN101798763A (en) | 2010-08-11 |
| CN101798763B true CN101798763B (en) | 2014-01-22 |
Family
ID=42594598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910260591.5A Expired - Fee Related CN101798763B (en) | 2009-12-21 | 2009-12-21 | Superfine fiber polyurethane synthesis leather and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101798763B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477636A (en) * | 2010-11-25 | 2012-05-30 | 东丽纤维研究所（中国）有限公司 | Slightly pilling fabric and production method thereof |
| CN103031744B (en) * | 2011-09-29 | 2014-12-10 | 昆山协兴合成革有限公司 | Manufacture method of half microfiber sports shoe leather |
| ITMI20121780A1 (en) | 2012-10-22 | 2014-04-23 | Alcantara Spa | NEW PROCESS FOR THE PREPARATION OF A NON-WOVEN FABRIC SYNTHETIC MICRO-FIBROUS SUEDE |
| CN103628267B (en) * | 2013-12-04 | 2015-09-30 | 北京富泰革基布股份有限公司 | Polyamide fiber and polyester fiber composite synthesis are removed from office and processing technology |
| CN103806305A (en) * | 2014-01-24 | 2014-05-21 | 廊坊中纺新元无纺材料有限公司 | Novel non-woven material wall leather |
| CN104452326A (en) * | 2014-12-11 | 2015-03-25 | 无锡双象超纤材料股份有限公司 | Preparation method of moisture-absorbing ventilating superfine fiber polyurethane synthetic leather |
| CN107177903B (en) * | 2014-12-17 | 2020-03-17 | 上海凯赛生物技术股份有限公司 | Blended fiber, preparation method thereof and fabric containing blended fiber |
| CN104894880A (en) * | 2015-04-20 | 2015-09-09 | 天守(福建)超纤科技股份有限公司 | Super-soft hand-feeling super-fiber skin-imitated leather manufacturing method |
| CN105401451A (en) * | 2015-12-24 | 2016-03-16 | 福建隆上超纤有限公司 | Production method of high-performance suede superfine fiber synthetic leather for clothing |
| CN106367977A (en) * | 2016-08-29 | 2017-02-01 | 扬州市德运塑业科技股份有限公司 | Wear-resistant sofa leather |
| CN109433024B (en) * | 2018-10-30 | 2021-06-18 | 武汉纺织大学 | Membrane material or aerogel material containing metal organic framework nanofiber as well as preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1399030A (en) * | 2002-08-30 | 2003-02-26 | 山东科特乐股份有限公司 | Prepn of superfine fiber sofa leatherette |
| CN1446281A (en) * | 2000-08-11 | 2003-10-01 | 拜尔公司 | Coated flexible fabric |
| CN1641096A (en) * | 2004-01-16 | 2005-07-20 | 三芳化学工业股份有限公司 | Superfine fiber artificial leather and fabric preparing method |
| CN101457482A (en) * | 2009-01-04 | 2009-06-17 | 山东同大纺织印染有限公司 | Superfine fibre woven fibric chemical leather and method for producing the same |
-
2009
- 2009-12-21 CN CN200910260591.5A patent/CN101798763B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1446281A (en) * | 2000-08-11 | 2003-10-01 | 拜尔公司 | Coated flexible fabric |
| CN1399030A (en) * | 2002-08-30 | 2003-02-26 | 山东科特乐股份有限公司 | Prepn of superfine fiber sofa leatherette |
| CN1641096A (en) * | 2004-01-16 | 2005-07-20 | 三芳化学工业股份有限公司 | Superfine fiber artificial leather and fabric preparing method |
| CN101457482A (en) * | 2009-01-04 | 2009-06-17 | 山东同大纺织印染有限公司 | Superfine fibre woven fibric chemical leather and method for producing the same |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2006-2286A 2006.01.05 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101798763A (en) | 2010-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101798763B (en) | Superfine fiber polyurethane synthesis leather and preparation method thereof | |
| CN101792973B (en) | Impregnation method of non-woven fabric | |
| CN102071495B (en) | Figured sea-island super-fine fiber, and preparation method thereof and synthetic leather preparing process method using same | |
| CN102482843B (en) | Pilling-resistant artificial leather | |
| TW200536971A (en) | Island-in-sea type composite fibers and process for producing same | |
| CN101798764B (en) | Dyeing method of artificial leather | |
| CN102704262B (en) | Method for preparing pure mudar-floss yarns | |
| JP2022552567A (en) | Polyamide sea-island fibers, methods of making the same, and uses thereof | |
| CN101798714B (en) | Bi-component composite fiber and preparation method thereof | |
| CN101798737B (en) | Raising method of artificial leather | |
| CN101798726B (en) | Non-woven fabric and preparation method thereof | |
| CN109072544A (en) | The artificial leather and preparation method thereof being made of the polyester fiber that stoste dyes | |
| CS202042B2 (en) | Method of manufacturing colored suede leatherette | |
| CN102066626A (en) | Water-absorbing rapidly dryable woven or knitted fabric | |
| CN105063779B (en) | A kind of chemical resistance composite monofilament and preparation method thereof | |
| CN102517924B (en) | Manufacturing method of low-viscosity superfine polyamide chopped fiber glove leather | |
| KR101249934B1 (en) | Process Of Producing Suede―like Polyurethane―impregnated Textiles Using NanoFilaments | |
| CN101798738B (en) | Splitting method of non-woven impregnated base fabric | |
| CN106702520A (en) | Method for producing water-repellent anti-fouling type polypropylene BCF filament | |
| Mukhopadhyay | Microfibres—an overview | |
| US20100047573A1 (en) | Splittable conjugate fiber | |
| KR102360127B1 (en) | Non-woven Fabric Artificial Leather Using Sea-island Type Dope Dyed Polyester Yarn, and Method for Manufacturing the Same | |
| CN203960416U (en) | A kind of superfine fibre long filament and nothing are dyed chamois leather fabric | |
| CN109338734A (en) | A kind of wear-resisting combined artificial leather and preparation method thereof | |
| KR101316664B1 (en) | Process of producing suede-like polyurethane-impregnated textiles using nanofilaments |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160331 Address after: 361000 Fujian Province, Xiamen city Xiangan District Road No. 2010 layer two circles Patentee after: Xiamen Xiangyu fine materials Co. Ltd. Xing Hong Address before: Five Xiangan District Ma Zhen Xiang West Road Xiamen city Fujian province 361101 Fang warm floor Patentee before: Xiamen Fibrechem Technologies Limited. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20191221 |