CN110438813B - Manufacturing method of anti-laddering and anti-pilling chinlon leather - Google Patents
Manufacturing method of anti-laddering and anti-pilling chinlon leather Download PDFInfo
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- CN110438813B CN110438813B CN201910814917.8A CN201910814917A CN110438813B CN 110438813 B CN110438813 B CN 110438813B CN 201910814917 A CN201910814917 A CN 201910814917A CN 110438813 B CN110438813 B CN 110438813B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
Abstract
The invention discloses a manufacturing method of anti-laddering and anti-pilling figured leather for a fixed island. It comprises the following steps: preparing the island component and the sea component by a fixed island spinning process to obtain a fixed island fiber; drafting, curling, cutting, opening, carding, lapping, needling and ironing the figured sea-island fiber to obtain a non-woven fabric; impregnating the non-woven fabric with polyurethane resin impregnation liquid, solidifying, washing and splitting to obtain split-fiber base fabric; and removing the superfine calcium carbonate distributed on the surface of the island component by using a weak acid solution, and then carrying out expanding sizing and softening treatment, dyeing, splitting and sanding treatment on the base cloth to obtain the anti-laddering and anti-pilling figured suede leather for the fixed island. By adopting the technology, the invention not only improves the problem of silk drawing and pilling of the product, but also obviously improves the tearing strength and dyeing property of the product.
Description
Technical Field
The invention belongs to the technical field of artificial leather manufacturing, relates to a manufacturing method of superfine fiber synthetic leather, and particularly relates to a manufacturing method of anti-laddering and anti-pilling chinlon suede leather.
Background
The superfine fiber suede leather is a novel artificial leather material, has physical properties superior to leather, has the characteristics of good antibacterial property, air permeability, environmental protection, light and soft quality, skin friendliness and easiness in maintenance, and can be widely applied to the fields of shoes, boots, sofas, interior decoration, automotive interior decoration and the like.
The superfine fiber suede leather relates to chemical fiber, non-woven fabric weaving, polyurethane resin synthesis, leather making and other multidisciplinary technologies, and is a technology-intensive industry. In particular to a manufacturing technology of microfiber, which is a core technology of microfiber suede leather. The prior art adopts two types of microfiber technology at home, one type is indefinite island microfiber technology, two incompatible resin slices are mixed in a certain proportion, and are melted, blended, metered and spun by the same screw extruder to form indefinite island microfiber, island phases have diameters of 0.3-1 μm in random normal distribution, the fiber is soft after fiber splitting and is twisted with each other, and the prepared suede leather is not easy to be drawn, spun, knotted, but only can be made into products with low requirements due to light color and insufficient color fastness of dyeing; the other is a fixed island microfiber technology, two different polymers are respectively melted and metered by a composite spinning machine and enter a composite spinning assembly, a sea phase and an island phase are respectively converged in front of a spinneret orifice by a single distribution channel according to a proportion to form sea-island fibers, the diameter of the island phase can be accurately controlled between 2 and 3 mu m, the prepared suede leather is deep in dyeing and high in color fastness, but due to the fact that the fibers are thick and the cohesion is insufficient, the product is easy to spin, raise balls and tie knots, and the application range of the product is greatly restricted.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a manufacturing method of the anti-drawing and anti-pilling figured leather for the fixed island, which solves the drawing, pilling and knotting problems of the fixed island microfiber besides the characteristic of the fixed island microfiber.
The manufacturing method of the anti-laddering and anti-pilling figured suede leather is characterized by comprising the following steps of:
1) the island component and the sea component are prepared into the sea-island fiber by a sea-island spinning process, wherein 2 to 4 percent of inorganic ultrafine powder or inorganic ultrafine powder resin filler master batch by weight of the island component is added into the island component, and 1 to 2 percent of ultrafine calcium carbonate or ultrafine calcium carbonate resin master batch by weight of the sea component and particle size of 0.15 to 0.25 mu m is added into the sea component;
2) drafting, curling, cutting, opening, carding, lapping, needling and ironing the figured sea-island fiber obtained in the step 1) to obtain a non-woven fabric;
3) impregnating the non-woven fabric obtained in the step 2) with polyurethane resin impregnation liquid, solidifying and washing, and then performing fiber opening treatment by using toluene at 80-100 ℃ or 5w% NaOH aqueous solution at 60 ℃ to obtain the microfiber base fabric subjected to fiber opening treatment;
4) removing the superfine calcium carbonate distributed on the surface of the island component from the superfine fiber base cloth subjected to fiber splitting treatment in the step 3) by using a weak acid solution to obtain the superfine fiber base cloth;
5) carrying out spreading shaping and softening treatment on the microfiber base cloth prepared in the step 4) in sequence to obtain a product;
6) dyeing, splitting and sanding the product prepared in the step 5) to prepare the anti-laddering and anti-pilling chinlon leather.
The manufacturing method of the anti-laddering and anti-pilling chinlon leather is characterized in that the island component in the step 1) is nylon 6, nylon 66, PET, cation modified PET or PTT; the sea component is polyethylene, polystyrene, COPET, polylactic acid or polyglycolic acid resin; the material ratio of the island component to the sea component is 55-75: 45-25.
The manufacturing method of the anti-laddering and anti-pilling chinlon leather is characterized in that the particle size of the inorganic ultrafine powder in the step 1) is 0.15-0.25 mu m, and the inorganic ultrafine powder is titanium dioxide, zinc oxide, gas-phase silicon dioxide or aluminum oxide; the grain size of the superfine calcium carbonate or the superfine calcium carbonate resin master batch is generally 2-3mm cylinder.
The manufacturing method of the anti-laddering and anti-pilling chinlon leather is characterized in that the density of the non-woven fabric in the step 2) is 0.28-0.3g/cm2。
The manufacturing method of the anti-laddering and anti-pilling chinlon leather is characterized in that the mass concentration of the polyurethane resin impregnation liquid in the step 3) is 13-16%, and the 100% modulus is controlled to be 6-8 MPa.
The manufacturing method of the anti-laddering and anti-pilling chinlon leather is characterized in that the weak acid solution in the step 4) is a dilute phosphoric acid solution with the pH value of 4-5, the temperature of the dilute phosphoric acid solution is 30-40 ℃, and the concentration of the dilute phosphoric acid solution is 0.02-0.03%.
The manufacturing method of the anti-laddering and anti-pilling figured suede leather is characterized in that superfine inorganic particle protrusions are arranged on the surfaces of superfine fiber artificial leather base cloth fibers obtained after superfine calcium carbonate is removed from the superfine fiber base cloth in the step 4) and calcium carbonate is dissolved away to form tiny pits.
The manufacturing method of the anti-laddering and anti-pilling figured suede leather is characterized in that phosphoric acid calcium removal treatment is carried out at the dyeing and acid adjusting stage when the base cloth is dyed in the step 6).
The resin filler master batch is a carrier of powder, if the fiber resin is nylon, the powder master batch resin is also nylon.
By adopting the technology, compared with the prior art, the invention has the following beneficial effects:
the invention provides a method for manufacturing figured suede leather, which comprises removing superfine calcium carbonate distributed on the surface of island component in acid buffer solution with pH value of 4-5 to obtain superfine fiber base cloth with unique surface, wherein the surface has protrusions distributed with superfine inorganic particles and tiny pits formed by dissolving calcium carbonate, and friction and winding between fiber and fiber surface are realized by using the rugged structure of fiber surface, so that kinetic friction coefficient and anti-friction performance are both obviously improved; compared with the prior art, the method not only improves the spinning and pilling problems of the product, but also obviously improves the tearing strength and the dyeing property of the product.
Detailed Description
The invention is further described with reference to the following examples, but the scope of the invention is not limited thereto:
the invention relates to a manufacturing method of anti-laddering and anti-pilling fixed island superfine fiber suede leather, which comprises the following steps:
1) obtaining island-fixed sea-island fiber by using a composite spinning process, wherein the island component can be nylon 6, nylon 66, PET, cation modified PET or PTT, and 2-4 wt% of inorganic ultrafine powder (acid and alkali resistant ultrafine inorganic powder such as titanium dioxide, zinc oxide, fumed silica, aluminum oxide and the like) or corresponding resin filler master batch with the particle size of 0.15-0.25 mu m is added into the island component; the sea component can be polyethylene, polystyrene, COPET, polylactic acid, polyglycolic acid resin, but 1% -2% of superfine calcium carbonate with particle size of 0.15-0.25 μm or corresponding superfine calcium carbonate resin master batch must be added. The "island"/"sea" ratio is between 55/45-75/25;
(2) drafting, curling, cutting, opening, carding, lapping, needling and ironing the figured sea-island fiber in the step (1) to prepare a non-woven fabric;
(3) impregnating the non-woven fabric obtained in the step (2) with polyurethane resin impregnation liquid, solidifying and washing, and then performing fiber opening treatment by using toluene at the temperature of 80-100 ℃ or 5% NaOH aqueous solution at the temperature of 60 ℃ to obtain the microfiber base fabric after the fiber opening treatment;
(4) removing the superfine calcium carbonate distributed on the surface of the island component from the split superfine fiber base cloth in the step (3) by using an acid buffer solution with the pH value of 4-5 to prepare the figured superfine fiber artificial leather base cloth with the protrusions of superfine inorganic particles on the fiber surface cloth and micro pits formed by dissolving the calcium carbonate;
(5) carrying out spreading shaping and softening treatment on the prepared microfiber base cloth in the step (4) in sequence to obtain a product;
(6) dyeing, splitting and sanding the product prepared in the step (5) to prepare the anti-laddering and anti-pilling chinlon leather;
the island component in the step (1) can be nylon 6, nylon 66, PET, cation modified PET or PTT, but 2% -4% of inorganic ultrafine powder (acid and alkali resistant ultrafine inorganic powder such as titanium dioxide, zinc oxide, fumed silica, aluminum oxide and the like) with the particle size of 0.15-0.25 mu m or corresponding resin filler master batch must be added; the sea component can be polyethylene, polystyrene, COPET, polylactic acid or polyglycolic acid resin, but 1% -2% of cylindrical superfine calcium carbonate with a slice particle size of 2-3mm or corresponding superfine calcium carbonate resin master batch must be added.
The density of the non-woven fabric in the step (2) is 0.28-0.3g/cm2To (c) to (d);
the concentration of the polyurethane resin impregnation liquid in the step (3) is controlled to be 13-16%, and the 100% modulus is controlled to be 6MPa-8 MPa;
step (4) passing the split microfiber base cloth through an acid buffer solution with the pH value of 4-5, wherein the temperature of the dilute phosphoric acid solution is 30-40 ℃, and the concentration of the dilute phosphoric acid solution is 0.02-0.03%; in the step (4), when the base cloth is dyed, the calcium removal treatment by phosphoric acid can be carried out in the dyeing and acid adjusting stage, so that the process cost is reduced, but the dyeing reproducibility is reduced
Example 1: the preparation method of the anti-laddering anti-pilling figured superfine fiber suede leather comprises the following steps:
1) the sea island fiber is prepared from nylon, superfine titanium dioxide, polyethylene and superfine calcium carbonate by a composite spinning process, wherein the raw material nylon: superfine titanium dioxide: polyethylene: the mass ratio of the superfine calcium carbonate is 63.7: 1.3: 34.6: 0.4; wherein the particle size of the titanium dioxide and calcium carbonate slices is 2mm cylinder;
2) the figured sea-island fiber obtained in the step 1) is sequentially subjected to drafting, curling, cutting, opening, carding, lapping, needling and ironing to obtain the sea-island fiber with the density of 0.28/cm2The nonwoven fabric of (1);
3) impregnating the non-woven fabric obtained in the step 2) with polyurethane resin with the concentration of 13% and the modulus of 100% of 8Mpa, solidifying and washing, dissolving with toluene at 90 ℃ for fiber opening treatment, and separating out polyethylene in the base fabric;
4) removing the superfine calcium carbonate distributed on the surface of the island component from the opened superfine fiber base cloth by using 0.02 percent diluted phosphoric acid solution with the temperature of 40 ℃ and the PH value of 4-5;
5) carrying out spreading shaping and softening treatment on the microfiber base cloth prepared in the step 4) in sequence;
6) dyeing, splitting and sanding the product prepared in the step 5) to prepare the anti-laddering and anti-pilling chinlon leather.
Example 2:
(1) obtaining the sea-island fiber by using a composite spinning process technology, wherein the raw material ratio of PET/superfine zinc oxide/polyethylene/superfine calcium carbonate = 63/2/34.5/0.5; wherein the grain diameter of the zinc oxide and the calcium carbonate is 0.18 mu m,
(2) subjecting the sea island fiber to drafting, curling, cutting, opening, carding, lapping, needling, and ironing to obtain sea island fiber with density of 0.285/cm2The nonwoven fabric of (1);
(3) soaking the non-woven fabric in 14% polyurethane resin with a concentration of 100% and a modulus of 7Mpa, solidifying, washing with water, and dissolving with toluene at 90 deg.C to separate polyethylene from the base fabric
(4) Removing the superfine calcium carbonate distributed on the surface of the island component by the opened superfine fiber base cloth through a dilute phosphoric acid solution with the temperature of 40 ℃ and the PH value of 4-5,
(5) carrying out spreading shaping and softening treatment on the prepared microfiber base cloth in sequence;
(6) dyeing, splitting and sanding the prepared product to obtain the anti-laddering and anti-pilling chinlon suede leather.
Example 3
(1) Obtaining the island-in-sea fiber by using a composite spinning process technology, wherein the raw material ratio of cation modified PET/superfine aluminum oxide/COPET/superfine calcium carbonate = 67.5/2.5/29.5/0.5; wherein the grain diameter of the aluminum oxide and the calcium carbonate is 0.21 mu m,
(2) the sea-island fiber is prepared into sea-island fiber with density of 0.29/cm by drafting, curling, cutting, opening, carding, lapping, needling and ironing2The nonwoven fabric of (1);
(3) soaking the non-woven fabric in 15% concentration and 100% modulus 7.5Mpa polyurethane resin, coagulating, washing with water, and opening with 60 deg.C 5% NaOH water solution
(4) Removing the superfine calcium carbonate distributed on the surface of the island component by the opened superfine fiber base cloth through a dilute phosphoric acid solution with the temperature of 40 ℃ and the PH value of 4-5,
(5) carrying out spreading shaping and softening treatment on the prepared microfiber base cloth in sequence;
(6) dyeing, splitting and sanding the prepared product to obtain the anti-laddering and anti-pilling chinlon suede leather.
Example 4
(1) Obtaining island-fixed sea-island fibers by using a composite spinning process technology, wherein the raw material ratio of PTT/superfine silica/COPET/superfine calcium carbonate = 67.5/2.5/29.5/0.5; wherein the particle size of the silicon dioxide and the calcium carbonate is 0.20 μm,
(2) the sea-island fiber is prepared into sea-island fiber with density of 0.300/cm by drafting, curling, cutting, opening, carding, lapping, needling and ironing2The nonwoven fabric of (1);
(3) soaking the non-woven fabric in 16% concentration and 100% modulus 6Mpa polyurethane resin, coagulating, washing with water, and opening with 60 deg.C 5% NaOH water solution
(4) Removing the superfine calcium carbonate distributed on the surface of the island component by the opened superfine fiber base cloth through a dilute phosphoric acid solution with the temperature of 40 ℃ and the PH value of 4-5,
(5) carrying out spreading shaping and softening treatment on the prepared microfiber base cloth in sequence;
(6) dyeing, splitting and sanding the prepared product to obtain the anti-laddering and anti-pilling chinlon suede leather.
Example 5
(1) Obtaining the island-sea fiber by using a composite spinning process technology, wherein the raw material ratio of PTT/superfine titanium dioxide/polylactic acid/superfine calcium carbonate = 67.5/2.5/29.5/0.5; wherein the particle size of the titanium dioxide and the calcium carbonate is 0.20 μm,
(2) the sea-island fiber is prepared into sea-island fiber with density of 0.300/cm by drafting, curling, cutting, opening, carding, lapping, needling and ironing2The nonwoven fabric of (1);
(3) soaking the non-woven fabric in 16% concentration and 100% modulus 6Mpa polyurethane resin, coagulating, washing with water, and opening with 60 deg.C 5% NaOH water solution
(4) Is not processed
(5) Carrying out spreading shaping and softening treatment on the prepared microfiber base cloth in sequence;
(6) and (3) performing calcium carbonate dissolution treatment on the prepared product in the dyeing and acid-regulating stage, and performing splitting and sanding treatment to obtain the anti-laddering and anti-pilling chinlon leather.
The product performance parameters obtained according to the above process are shown in table 1.
TABLE 1 Performance parameter Table for products made by EXAMPLES 1-5 and conventional Nylon Takadi
As can be seen from Table 1, the dynamic coefficient of friction and the pilling resistance of the suede leather of the fixed island are obviously higher than those of the conventional nylon fixed island.
Claims (8)
1. A manufacturing method of anti-laddering and anti-pilling figured suede leather is characterized by comprising the following steps:
1) preparing island-in-sea fibers from an island component and a sea component by a island-in-sea spinning process, wherein 2-4% of inorganic ultrafine powder or inorganic ultrafine powder resin filler master batch by weight of the island component is added into the island component, 1-2% of ultrafine calcium carbonate or ultrafine calcium carbonate resin master batch by weight of the sea component and with the particle size of 0.15-0.25 mu m is added into the sea component, and the inorganic ultrafine powder is titanium dioxide, zinc oxide, gas phase silicon dioxide or aluminum oxide;
2) drafting, curling, cutting, opening, carding, lapping, needling and ironing the figured sea-island fiber obtained in the step 1) to obtain a non-woven fabric;
3) impregnating the non-woven fabric obtained in the step 2) with polyurethane resin impregnation liquid, solidifying and washing, and then performing fiber opening treatment by using toluene at 80-100 ℃ or 5w% NaOH aqueous solution at 60 ℃ to obtain the microfiber base fabric subjected to fiber opening treatment;
4) removing the superfine calcium carbonate distributed on the surface of the island component from the superfine fiber base cloth subjected to fiber splitting treatment in the step 3) by using a weak acid solution to obtain the superfine fiber base cloth;
5) carrying out spreading shaping and softening treatment on the microfiber base cloth prepared in the step 4) in sequence to obtain a product;
6) dyeing, splitting and sanding the product prepared in the step 5) to prepare the anti-laddering and anti-pilling chinlon leather.
2. The method for manufacturing the anti-laddering and anti-pilling figured suede leather according to claim 1, wherein the island component in the step 1) is nylon 6, nylon 66, PET, cation modified PET or PTT; the sea component is polyethylene, polystyrene, COPET, polylactic acid or polyglycolic acid resin; the material ratio of the island component to the sea component is 55-75: 45-25.
3. The method for manufacturing the anti-laddering and anti-pilling chinlon leather as claimed in claim 1, wherein the particle size of the inorganic ultrafine powder in the step 1) is 0.15-0.25 μm; the grain size of the superfine calcium carbonate or the superfine calcium carbonate resin master batch is 2-3mm cylinder.
4. The method for manufacturing the laddering-proof and pilling-resistant chinlon leather as claimed in claim 1, wherein the density of the non-woven fabric in the step 2) is 0.28-0.3g/cm2。
5. The method for manufacturing the anti-laddering and anti-pilling chinlon leather as claimed in claim 1, wherein the mass concentration of the polyurethane resin impregnation liquid in the step 3) is 13-16%, and the 100% modulus is controlled to be 6-8 MPa.
6. The method for manufacturing the anti-laddering and anti-pilling chinlon leather as claimed in claim 1, wherein the weak acid solution in the step 4) is a dilute phosphoric acid solution with the pH value of 4-5, and the temperature of the dilute phosphoric acid solution is 30-40 ℃.
7. The method for manufacturing the anti-laddering and anti-pilling figured suede leather as claimed in claim 1, wherein the superfine calcium carbonate is removed from the superfine fiber base cloth in the step 4) to obtain the superfine fiber artificial leather base cloth, and the superfine inorganic particle protrusions are formed on the fiber surface of the superfine fiber artificial leather base cloth, and the calcium carbonate is dissolved to form the micro pits.
8. The method for manufacturing the anti-laddering and anti-pilling figured suede leather as claimed in claim 1, wherein in the step 6), when the base cloth is dyed, the calcium removal treatment by phosphoric acid is carried out in the dyeing and acid adjusting stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910814917.8A CN110438813B (en) | 2019-08-30 | 2019-08-30 | Manufacturing method of anti-laddering and anti-pilling chinlon leather |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910814917.8A CN110438813B (en) | 2019-08-30 | 2019-08-30 | Manufacturing method of anti-laddering and anti-pilling chinlon leather |
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| Publication Number | Publication Date |
|---|---|
| CN110438813A CN110438813A (en) | 2019-11-12 |
| CN110438813B true CN110438813B (en) | 2021-09-21 |
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| CN112553915A (en) * | 2020-11-12 | 2021-03-26 | 浙江吉利控股集团有限公司 | Preparation method of microfiber leather and microfiber leather |
| CN113089124B (en) * | 2021-03-30 | 2023-01-17 | 上海华峰超纤科技股份有限公司 | Anti-hair-falling figured sea-island fiber for PU (polyurethane) microfiber leather and preparation and application thereof |
| CN113802386A (en) * | 2021-04-21 | 2021-12-17 | 安安(中国)有限公司 | Method for manufacturing superfine fiber synthetic leather with high color fastness |
| CN114990891A (en) * | 2022-07-05 | 2022-09-02 | 禾欣可乐丽超纤(海盐)有限公司 | Manufacturing method of down jacket special-purpose suede leather with water resistance, moisture permeability and down penetration resistance |
| CN115182171A (en) * | 2022-07-14 | 2022-10-14 | 东风汽车集团股份有限公司 | Superfine fiber suede leather capable of releasing negative ions and preparation method and application thereof |
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