CN113445326B - Durable polyvinyl chloride synthetic leather for bags and suitcases and manufacturing method thereof - Google Patents
Durable polyvinyl chloride synthetic leather for bags and suitcases and manufacturing method thereof Download PDFInfo
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- CN113445326B CN113445326B CN202110811520.0A CN202110811520A CN113445326B CN 113445326 B CN113445326 B CN 113445326B CN 202110811520 A CN202110811520 A CN 202110811520A CN 113445326 B CN113445326 B CN 113445326B
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- 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
- D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/06—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products
- D06N3/065—PVC together with other resins except polyurethanes
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- 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
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
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- 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
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
- D06N3/0097—Release surface, e.g. separation sheets; Silicone papers
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- 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
- D06N2209/00—Properties of the materials
- D06N2209/10—Properties of the materials having mechanical properties
- D06N2209/103—Resistant to mechanical forces, e.g. shock, impact, puncture, flexion, shear, compression, tear
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- 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
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Abstract
The application relates to the field of synthetic leather production and manufacturing, and particularly discloses durable polyvinyl chloride synthetic leather for bags and a manufacturing method thereof. The polyvinyl chloride synthetic leather comprises a surface layer, a foaming layer and an inner layer which are sequentially arranged from outside to inside, and a modified polyvinyl chloride layer coated on one side of the surface layer, which is far away from the foaming layer, wherein the modified polyvinyl chloride layer comprises PVC resin, a stabilizer, terpene phenol resin, aramid fiber, a plasticizer and an antioxidant; the preparation method comprises the following steps: and (2) performing heat preservation and heating on the terpene-phenol resin, then mixing and stirring the rest raw materials, adding the mixture into the preheated terpene-phenol resin, stirring to obtain modified polyvinyl chloride slurry, then coating and scraping the modified polyvinyl chloride slurry onto the surface of the preheated release paper, plasticizing to obtain a modified polyvinyl chloride layer, and finally sequentially bonding the modified polyvinyl chloride layer, the surface layer, the foaming layer and the lining cloth layer together to obtain the polyvinyl chloride synthetic leather. This application has the holistic mechanical strength of promotion case and bag, extension case and bag life's effect.
Description
Technical Field
The application relates to the field of production and manufacturing of synthetic leather, in particular to durable polyvinyl chloride synthetic leather for bags and suitcases and a manufacturing method thereof.
Background
Synthetic leather is a plastic product that mimics the composition and structure of natural leather and can be used as a substitute material for it. The front and back surfaces of the leather are very similar to leather, have certain air permeability, are closer to natural leather than common artificial leather, and are widely used for manufacturing shoes, boots, bags, balls and the like.
The existing case fabric sequentially comprises a surface layer, a foaming layer, an adhesive layer and fluffy cloth from outside to inside. At present, in order to improve the mechanical strength of the bag fabric, people often coat polyvinyl chloride on the surface layer of the bag after a series of processing steps so as to achieve the purpose of enhancing the strength of the bag by forming a layer of polyvinyl chloride protective film. However, the mechanical strength of the polyvinyl chloride is low, so that the overall anti-cracking performance of the luggage is low, cracks are easy to generate, and the durability of the luggage is influenced.
Disclosure of Invention
In order to improve the overall mechanical strength of the luggage and effectively prolong the service life of the luggage, the application provides the durable polyvinyl chloride synthetic leather for the luggage and the manufacturing method thereof.
In a first aspect, the application provides a durable polyvinyl chloride synthetic leather for luggage, adopts following technical scheme: the utility model provides a durable polyvinyl chloride synthetic leather is used to case and bag, includes by surface course, foaming layer, the nexine that sets gradually in to and coat in the surface course deviates from the modified polyvinyl chloride layer of foaming layer one side, modified polyvinyl chloride layer is made by the thick liquids that include that following parts by weight raw materials matched into:
PVC resin: 100-140 parts;
a stabilizer: 1-5 parts;
terpene-phenol resin: 10-18 parts;
aramid fiber: 15-28 parts;
plasticizer: 55-75 parts;
antioxidant: 1-4 parts.
By adopting the technical scheme, the PVC resin, the aramid fiber and the terpene phenol resin are matched with each other, so that the mechanical strength of the polyvinyl chloride synthetic leather is effectively enhanced, the aim of enhancing the overall crack resistance of the polyvinyl chloride synthetic leather is fulfilled, the service life of the luggage is prolonged, and the luggage has great economic value.
Regarding the phenomenon of performance enhancement, the inventor guesses that the aramid fiber can be combined with molecules of PVC resin after being added, and a covering layer is formed on the surface of the PVC resin molecules, so that the combination of partial metal ions and the PVC resin molecules in the slurry is reduced through hydrogen bonds on the aramid fiber molecules, and the fracture of the PVC resin molecules is effectively reduced.
Preferably, the modified polyvinyl chloride layer is prepared from slurry prepared from the following raw materials in parts by weight:
PVC resin: 105-135 parts;
a stabilizer: 1-3 parts;
terpene phenol resin: 14-18 parts;
aramid fiber: 21-27 parts;
plasticizer: 55-70 parts;
antioxidant: 1.5 to 3.5 portions.
By adopting the technical scheme, the inventor finds that when the modified polyvinyl chloride layer is made of the slurry prepared from the raw materials in parts by weight, the overall mechanical property of the polyvinyl chloride synthetic leather can be more effectively enhanced, so that the high-temperature crack resistance of the luggage is enhanced to a certain extent.
Preferably, the PVC resin comprises SG-3 type PVC resin and SG-5 type PVC resin, and the weight ratio of the SG-3 type PVC resin to the SG-5 type PVC resin is 1 (2-3).
By adopting the technical scheme, the light resistance, the friction resistance and the tearing resistance of the polyvinyl chloride synthetic leather can be effectively improved by selecting the SG-3 type PVC resin and the SG-5 type PVC resin, so that the purpose of prolonging the service life of the luggage is achieved.
Preferably, the weight ratio of the SG-3 type PVC resin to the SG-5 type PVC resin is 1.
By adopting the technical scheme, the weight ratio of the SG-3 type PVC resin to the SG-5 type PVC resin is controlled to be 1.
Preferably, the viscosity of the terpene-phenol resin is 1120mPa · s-1130mPa · s.
By adopting the technical scheme, the viscosity range of the terpene-phenol resin is controlled to be 1120mPa & s-1130mPa & s, so that the tearing strength of the polyvinyl chloride synthetic leather can be further improved, and the service life of the luggage can be effectively prolonged.
Preferably, the fineness of the aramid fiber is 600D-1200D.
By adopting the technical scheme, the fineness range of the aramid fiber is controlled to be 600D-1200D, so that the synergistic effect among the terpene phenol resin, the PVC resin and the aramid fiber can be enhanced, and the integral mechanical property of the polyvinyl chloride synthetic leather can be effectively improved.
Preferably, the stabilizer is one of tribasic lead sulfate, dibasic lead phosphite and dibasic lead stearate.
By adopting the technical scheme, the overall cohesion of the polyvinyl chloride synthetic leather can be effectively improved by selecting tribasic lead sulfate, dibasic lead phosphite and dibasic lead stearate compared with other types of stabilizers, so that the high-temperature anti-cracking performance of the case fabric can be effectively enhanced.
Preferably, the plasticizer is one of a phthalic diester, dibutyl phthalate and diethyl phthalate.
By adopting the technical scheme, the integral cohesive force of the polyvinyl chloride synthetic leather can be effectively improved by selecting the diester phthalate, the dibutyl phthalate and the diethyl phthalate compared with other types of plasticizers, so that the crack resistance of the luggage fabric can be further enhanced.
Preferably, the antioxidant is one of antioxidant 1010, antioxidant 1076 and antioxidant CA.
By adopting the technical scheme, the antioxidant 1010, the antioxidant 1076 and the antioxidant CA are selected, so that the overall mechanical property of the polyvinyl chloride synthetic leather can be effectively improved, and the anti-cracking capability of the case fabric can be further enhanced.
In a second aspect, the application provides a method for manufacturing durable polyvinyl chloride synthetic leather for bags and suitcases, which adopts the following technical scheme:
a manufacturing method of durable polyvinyl chloride synthetic leather for bags and suitcases adopts a release paper scraping and coating process, and comprises the following steps:
the method comprises the following steps: weighing terpene-phenol resin according to the weight part, and heating the terpene-phenol resin to 140-160 ℃ under the condition of heat preservation;
step two: weighing the residual components of the modified polyvinyl chloride layer raw material according to the weight parts, mixing, stirring for 0.5-1.5 hours, adding into the preheated terpene-phenol resin, mixing and stirring for 0.5-1 hour to obtain modified polyvinyl chloride slurry;
step three: preheating the release paper to 55-80 ℃, and then adding 145-250g/m of modified polyvinyl chloride slurry 2 The coating amount is coated and scraped on the surface of release paper, and the release paper is plasticized into a modified polyvinyl chloride layer at the temperature of 150-160 ℃;
step four: and sequentially bonding the modified polyvinyl chloride layer, the surface layer, the foaming layer and the lining layer together to obtain the polyvinyl chloride synthetic leather.
By adopting the technical scheme, the inventor guesses that after the terpene phenol resin, the PVC resin and the aramid fiber are mixed and stirred for 0.5-1 hour, mutual influence is possibly generated, and a certain modification effect is generated, so that the cohesive force of the polyvinyl chloride slurry is enhanced, the condition that PVC resin molecules are broken at high temperature is inhibited to a certain extent, and the service life of the luggage is prolonged.
In summary, the present application has the following beneficial effects:
1. the PVC resin, the aramid fiber and the terpene phenol resin are matched with each other, so that the mechanical strength of the polyvinyl chloride synthetic leather is effectively enhanced, the aim of enhancing the overall crack resistance of the polyvinyl chloride synthetic leather is fulfilled, the service life of the luggage is prolonged, and the luggage has great economic value;
2. the tearing resistance of the polyvinyl chloride synthetic leather can be further improved by controlling the viscosity range of the terpene-phenol resin to be 1120mPa & s-1130mPa & s, and in addition, the synergistic effect among the terpene-phenol resin, the PVC resin and the aramid fiber can be enhanced by controlling the fineness range of the aramid fiber to be 600D-1200D, so that the overall mechanical property of the polyvinyl chloride synthetic leather is more effectively improved;
3. according to the method, after the terpene phenol resin, the PVC resin and the aramid fiber are mixed and stirred for 0.5-1 hour, mutual influence is possibly generated, and a certain modification effect is generated, so that the cohesion of the polyvinyl chloride slurry is enhanced, the condition that PVC resin molecules are broken at a high temperature is inhibited to a certain extent, and the service life of the luggage is prolonged.
Drawings
Fig. 1 is a schematic flow chart of a method for preparing polyvinyl chloride synthetic leather in the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples.
TABLE 1 sources and types of starting materials
Examples 1 to 5
A modified polyvinyl chloride layer of durable polyvinyl chloride synthetic leather for bags and suitcases comprises the following raw material components:
PVC resin, a stabilizer, terpene phenol resin, aramid fiber, a plasticizer and an antioxidant.
Referring to fig. 1, a durable polyvinyl chloride synthetic leather for bags and suitcases is prepared by the following steps:
the method comprises the following steps: weighing terpene-phenol resin according to the weight part, and heating the terpene-phenol resin to 140-160 ℃ under the condition of heat preservation;
step two: weighing the residual components of the raw material of the modified polyvinyl chloride layer according to the parts by weight, stirring for 0.5-1.5 hours after mixing at the rotating speed of 11000r/min, adding the mixture into the preheated terpene-phenol resin, and stirring for 0.5-1 hour at the rotating speed of 8500r/min to obtain modified polyvinyl chloride slurry;
step three: preheating the release paper to 55-80 ℃, and then adding 145-250g/m of modified polyvinyl chloride slurry 2 The coating amount is coated and scraped on the surface of release paper, and the release paper is plasticized into a modified polyvinyl chloride layer at the temperature of 150-160 ℃;
step four: and sequentially bonding the modified polyvinyl chloride layer, the surface layer, the foaming layer and the lining layer together to obtain the polyvinyl chloride synthetic leather.
TABLE 2-specific inputs (in kg) of the raw material components in examples 1 to 5
Example 1
A durable polyvinyl chloride synthetic leather for bags and suitcases, the weight parts of each substance refer to example 1 in Table 2, wherein the preparation method of the polyvinyl chloride synthetic leather in the example comprises the following steps:
the method comprises the following steps: weighing terpene-phenol resin according to the weight part, and heating the terpene-phenol resin to 140 ℃ under the condition of heat preservation;
step two: weighing the residual components of the raw materials of the modified polyvinyl chloride layer according to the weight parts, stirring for 1.5 hours after mixing at the rotating speed of 11000r/min, adding into the preheated terpene-phenol resin, and stirring for 0.5 hour at the rotating speed of 8500r/min to obtain modified polyvinyl chloride slurry;
step three: preheating the release paper to 80 ℃, and then adding the modified polyvinyl chloride slurry to 250g/m 2 The coating amount is coated and scraped on the surface of release paper, and the release paper is plasticized into a modified polyvinyl chloride layer at 150 ℃;
step four: and sequentially bonding the modified polyvinyl chloride layer, the surface layer, the foaming layer and the lining layer together to obtain the polyvinyl chloride synthetic leather.
Example 2
A durable polyvinyl chloride synthetic leather for bags and suitcases is disclosed, wherein the parts by weight of the substances refer to example 2 in Table 2, and the difference between the example 2 and the example 1 is that the heat preservation and heating temperature in the first step is 150 ℃; in the second step, the mixing stirring time with the rotating speed of 11000r/min is 0.5 hour, and the mixing stirring time with the rotating speed of 8500r/min is 0.8 hour; step three, preheating the release paper at 55 ℃, and coating amount of 145g/m 2 The plasticizing temperature was 155 ℃.
Example 3
Durable polyvinyl chloride synthetic leather for bags and suitcases, and weight of each substanceReferring to example 3 in table 2, wherein the difference between example 3 and example 1 is that the temperature of the heat preservation and heating in the first step is 160 ℃; in the second step, the mixing stirring time with the rotating speed of 11000r/min is 1 hour, and the mixing stirring time with the rotating speed of 8500r/min is 1 hour; step three, preheating the release paper at 70 ℃, and coating quantity of 200g/m 2 The plasticizing temperature was 160 ℃.
Example 4
The weight parts of the materials refer to an example 4 in a table 2, wherein the heat preservation heating temperature in the first step of the example 4, the mixing and stirring time with the rotating speed of 11000r/min in the second step, the mixing and stirring time with the rotating speed of 8500r/min in the second step, the preheating temperature of release paper in the third step, the scraping amount and the plasticizing temperature are all kept consistent with the corresponding parameters in the example 3.
Example 5
The weight parts of the materials refer to an example 5 in a table 2, wherein the heat preservation heating temperature in the step one, the mixing and stirring time with the rotating speed of 11000r/min in the step two, the mixing and stirring time with the rotating speed of 8500r/min in the step two, the preheating temperature of release paper in the step three, the scraping amount and the plasticizing temperature are all kept consistent with the corresponding parameters in the example 3.
Example 6
A durable polyvinyl chloride synthetic leather for bags and suitcases, which is different from example 5 in that PVC resin is replaced by SG-3 type PVC resin and SG-5 type PVC resin, the dosage of SG-3 type PVC resin is 60kg, the dosage of SG-5 type PVC resin is 60kg, and the mass ratio of SG-3 type PVC resin to SG-5 type PVC resin is 1.
Example 7
A durable polyvinyl chloride synthetic leather for bags and suitcases is different from embodiment 5 in that PVC resin is replaced by SG-3 type PVC resin and SG-5 type PVC resin, the dosage of SG-3 type PVC resin is 30kg, the dosage of SG-5 type PVC resin is 90kg, and the mass ratio of SG-3 type PVC resin to SG-5 type PVC resin is 1.
Example 8
A durable polyvinyl chloride synthetic leather for bags and bags, differing from example 5 in that PVC resin was replaced with SG-3 type PVC resin and SG-5 type PVC resin, the amount of SG-3 type PVC resin used was 40kg, the amount of SG-5 type PVC resin used was 80kg, and the mass ratio of SG-3 type PVC resin to SG-5 type PVC resin was 1.
Example 9
A durable polyvinyl chloride synthetic leather for bags, which is different from that of example 8 in that the viscosity of the terpene-phenol resin was 1120 mPas.
Example 10
A durable polyvinyl chloride synthetic leather for bags and suitcases, which is different from example 8 in that the terpene-phenol resin has a viscosity of 1130 mPas.
Example 11
A durable polyvinyl chloride synthetic leather for bags, which is different from that of example 8 in that the terpene-phenol resin has a viscosity of 1126 mPas.
Example 12
A durable polyvinyl chloride synthetic leather for luggage, which is different from example 11 in that the fineness of the aramid fiber is 600D.
Example 13
A durable polyvinyl chloride synthetic leather for luggage, which is different from that of example 11 in that the fineness of aramid fiber is 1200D.
Example 14
A durable polyvinyl chloride synthetic leather for luggage, which is different from example 11 in that the fineness of the aramid fiber is 1000D.
Comparative example
Comparative example 1
A durable polyvinyl chloride synthetic leather for bags and suitcases, which is different from example 3 in that a terpene-phenol resin was replaced with SG-4 type PVC resin.
Comparative example 2
A durable polyvinyl chloride synthetic leather for bags and suitcases, which is different from the embodiment 3 in that aramid fibers are replaced by SG-4 type PVC resin.
Comparative example 3
A durable polyvinyl chloride synthetic leather for luggage, which is different from the embodiment 3 in that both terpene-phenol resin and aramid fiber are replaced by SG-4 type PVC resin.
Performance test
The light resistance is detected by QB/T1333-2018 Back bag, the light fastness level of the durable polyvinyl chloride synthetic leather for bags and bags prepared in examples 1-14 and comparative examples 1-3 is detected, the light fastness level is in the range of 1-8, the higher the light fastness level is, the better the light resistance of the durable polyvinyl chloride synthetic leather for bags and bags is.
And (3) detecting the friction resistance of the durable polyvinyl chloride synthetic leather for the bags and bags prepared in the examples 1-14 and the comparative examples 1-3 by adopting a QB/T1333-2018 back-pack bag, wherein the dry friction color fastness stage and the wet friction color fastness stage are in the range of 1-5, and the higher the color fastness stage is, the better the friction resistance of the durable polyvinyl chloride synthetic leather for the bags and bags is.
And (3) testing the tearing resistance, namely testing the tearing resistance (N) of the durable polyvinyl chloride synthetic leather for the luggage, prepared in the examples 1-14 and the comparative examples 1-3 when the thickness is 1.2mm by adopting 'QB/T2711-2005 carry-on bag', wherein the larger the tearing resistance is, the better the tearing resistance of the durable polyvinyl chloride synthetic leather for the luggage is.
TABLE 3 summary of test data for examples 1-14 and comparative examples 1-3
According to comparison of test data of example 3 and comparative examples 1 to 3 in table 3, it can be seen that when the PVC resin, the aramid fiber, and the terpene-phenol resin are mutually matched and act together in the polyvinyl chloride synthetic leather, the tearing strength of the polyvinyl chloride synthetic leather is significantly increased, and the light fastness level, the dry rubbing color fastness level, and the wet rubbing color fastness level of the polyvinyl chloride synthetic leather are all improved, so that the tearing resistance, the light resistance, and the friction resistance of the polyvinyl chloride synthetic leather are effectively improved, i.e., the polyvinyl chloride synthetic leather has a relatively high overall anti-cracking performance.
According to the comparison of the test data of the examples 3 and 6 to 8 in the table 3, it can be known that the mutual matching effect of the PVC resin, the aramid fiber and the terpene phenol resin is better and the mutual modification effect is possibly better by adding the SG-3 type PVC resin and the SG-5 type PVC resin into the polyvinyl chloride synthetic leather and controlling the mass ratio of the two, so that the tearing resistance, the light resistance and the friction resistance of the polyvinyl chloride synthetic leather are better improved, and the durability of the polyvinyl chloride synthetic leather is further more effectively enhanced.
According to the comparison of the test data of the embodiments 8 to 14 in table 3, the viscosity of the terpene phenol resin and the fineness of the aramid fiber are controlled within a proper range, so that the synergistic effect of the PVC resin, the aramid fiber and the terpene phenol resin can be further promoted, the effect of mutual cooperation of the three can be better enhanced, the internal mechanical property of the polyvinyl chloride synthetic leather can be more effectively enhanced, the tearing resistance of the polyvinyl chloride synthetic leather can be further improved, the purpose of prolonging the service life of the luggage is achieved, and the polyvinyl chloride synthetic leather has great economic value.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (6)
1. The utility model provides a case and bag are with durable polyvinyl chloride synthetic leather, includes surface course, foaming layer and the nexine that sets gradually by outer to interior, its characterized in that, still including coat in the surface course deviates from the modified polyvinyl chloride layer of foaming layer one side, modified polyvinyl chloride layer includes that following parts by weight raw materials make the thick liquids and make:
PVC resin: 100-140 parts;
a stabilizer: 1-5 parts;
terpene phenol resin: 10-18 parts;
aramid fiber: 15-28 parts;
plasticizer: 55-75 parts;
antioxidant: 1-4 parts;
the PVC resin comprises SG-3 type PVC resin and SG-5 type PVC resin, and the weight ratio of the SG-3 type PVC resin to the SG-5 type PVC resin is 1;
the viscosity of the terpene-phenol resin is 1120mPa & s-1130mPa & s;
the fineness of the aramid fiber is 600D-1200D.
2. The durable polyvinyl chloride synthetic leather for luggage of claim 1, wherein: the modified polyvinyl chloride layer is prepared from the following raw materials in parts by weight:
PVC resin: 105-135 parts;
a stabilizer: 1-3 parts;
terpene-phenol resin: 14-18 parts;
aramid fiber: 21-27 parts;
plasticizer: 55-70 parts;
antioxidant: 1.5 to 3.5 portions.
3. The durable polyvinyl chloride synthetic leather for cases and bags according to claim 1, wherein: the stabilizer is one of tribasic lead sulfate, dibasic lead phosphite and dibasic lead stearate.
4. The durable polyvinyl chloride synthetic leather for cases and bags according to claim 1, wherein: the plasticizer is one of dibutyl phthalate and diethyl phthalate.
5. The durable polyvinyl chloride synthetic leather for cases and bags according to claim 1, wherein: the antioxidant is one of antioxidant 1010, antioxidant 1076 and antioxidant CA.
6. A method for manufacturing durable polyvinyl chloride synthetic leather for suitcases, which is used for preparing the durable polyvinyl chloride synthetic leather for suitcases as claimed in any one of claims 1 to 5, and is characterized in that a release paper knife coating process is adopted, and the method comprises the following steps:
the method comprises the following steps: weighing terpene-phenol resin according to the weight part, and heating the terpene-phenol resin to 140-160 ℃ under the condition of heat preservation;
step two: weighing the residual components of the raw materials of the modified polyvinyl chloride layer according to the weight parts, mixing, stirring for 0.5-1.5 hours, adding into the preheated terpene-phenol resin, mixing and stirring for 0.5-1 hour to obtain modified polyvinyl chloride slurry;
step three: preheating the release paper to 55-80 ℃, and then adding 145-250g/m of modified polyvinyl chloride slurry 2 The coating amount is coated and scraped on the surface of release paper, and the release paper is plasticized into a modified polyvinyl chloride layer at the temperature of 150-160 ℃;
step four: and sequentially bonding the modified polyvinyl chloride layer, the surface layer, the foaming layer and the lining layer together to obtain the polyvinyl chloride synthetic leather.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| JPH06106682A (en) * | 1992-09-28 | 1994-04-19 | Kyowa Leather Cloth Co Ltd | Sheet/base fabric structure and production thereof |
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| CN103965818A (en) * | 2013-01-31 | 2014-08-06 | 日东电工株式会社 | Adhesive composition and adhesive sheet |
| CN106519486A (en) * | 2016-10-25 | 2017-03-22 | 东台市富安合成材料有限公司 | Synthetic leather for swivel chair and preparation method for synthetic leather |
| CN107237154A (en) * | 2017-06-22 | 2017-10-10 | 合肥冠怡涂层织物有限公司 | A kind of aqueous synthesis of artificial leather and its manufacture method |
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| CN113445326A (en) | 2021-09-28 |
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