阅读说明：本技术 聚氯乙烯发泡组合物及由其制备的人造革 (Polyvinyl chloride foaming composition and artificial leather prepared from same ) 是由 蔡东旦 于 2018-06-15 设计创作，主要内容包括：本发明涉及一种用于制造人造革的聚氯乙烯发泡组合物,按重量计,每100份所述组合物包含：50-60份PVC树脂；35-50份增塑剂；1-3份发泡剂；2-7份稳定剂；0.1-1份香精；0-6份颜料；和0-3助剂。本发明还提供了一种包含本发明的聚氯乙烯发泡组合物制成的PVC发泡层的人造革、制备所述人造革的方法、以及本发明的聚氯乙烯发泡组合物在制造人造革中的用途。本发明的聚氯乙烯发泡组合物成功地改善制备的PVC人造革气味等级,同时避免在人造革表皮层上形成缺陷的风险,而且,本发明的聚氯乙烯发泡组合物对于发泡剂没有特殊限制,可以使用各种适用于PVC人造革领域的物理发泡剂和化学发泡剂。(The invention relates to a polyvinyl chloride foaming composition for manufacturing artificial leather, comprising, per 100 parts by weight: 50-60 parts of PVC resin; 35-50 parts of a plasticizer; 1-3 parts of a foaming agent; 2-7 parts of a stabilizer; 0.1-1 part of essence; 0-6 parts of pigment; and 0-3 of auxiliary agent. The invention also provides artificial leather comprising the PVC foaming layer prepared from the PVC foaming composition, a method for preparing the artificial leather and application of the PVC foaming composition in artificial leather manufacture. The polyvinyl chloride foaming composition of the present invention successfully improves the odor grade of the prepared PVC artificial leather while avoiding the risk of forming defects on the skin layer of the artificial leather, and has no particular limitation on the foaming agent, and various physical foaming agents and chemical foaming agents suitable for the field of PVC artificial leather can be used.)

1. A polyvinyl chloride foaming composition for manufacturing artificial leather, comprising, per 100 parts by weight of the composition:

50-60 parts by weight, for example 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, or 60 parts by weight or a part in the range between any two of these values;

35 to 50 parts by weight, for example 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49 or 50 parts by weight or a part in the range between any two of these values;

1 to 3 parts by weight, such as 1, 2, or 3 parts by weight, or a part in a range between any two of these values;

2 to 7 parts by weight, such as 2, 3, 4, 5, 6, or 7 parts by weight, or a part in a range between any two of these values;

0.1 to 1 part by weight, e.g. 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, or 1 part by weight or a part in the range between any two of these values, preferably 0.1 to 0.7 part by weight, preferably 0.1 to 0.6 part by weight, more preferably 0.1 to 0.5 part by weight of perfume;

0 to 6 parts by weight, for example 0, 1, 2, 3, 4, 5, or 6 parts by weight or a part in the range between any two of these values; and

0 to 3 parts by weight, for example 0, 1, 2 or 3 parts by weight or a part in the range between any two of these values.

2. The polyvinyl chloride foaming composition according to claim 1, wherein the plasticizer is selected from the group consisting of epoxy soybean oil plasticizers and o-benzene plasticizers, preferably the plasticizer is a mixture of epoxy soybean oil plasticizers and o-benzene plasticizers, preferably in a weight ratio of epoxy soybean oil plasticizers to o-benzene plasticizers of 1:10, preferably the o-benzene plasticizers include o-benzene linear plasticizers and o-benzene branched plasticizers, preferably the plasticizer is an o-benzene linear plasticizer or o-benzene branched plasticizer, or a mixture of o-benzene linear plasticizers and o-benzene branched plasticizers, preferably the mixing ratio is 1: 2.

3. The polyvinyl chloride foaming composition according to claim 1 or 2 wherein the blowing agent is selected from the group consisting of dissolved inert gases, water, ethyl acetate, methanol, ethanol, diethyl ether, hydrofluorocarbons, azodicarbonamide, nitrogen, air, carbon dioxide, azides.

4. The polyvinyl chloride foaming composition according to any one of claims 1-3, wherein the stabilizer is selected from the group consisting of organic epoxy-based stabilizers, calcium zinc stabilizers, organotin-based stabilizers, and combinations thereof.

5. The polyvinyl chloride foaming composition according to any of claims 1-4, wherein the fragrance is floral or plant scent, such as lily scent, gardenia scent, mint scent, lavender scent, honeysuckle scent, rose scent, jasmine scent, tea scent, pine scent, sandalwood scent; fruit flavors, such as apple, orange, lemon; other notes, such as leather notes, male notes.

6. The polyvinyl chloride foamed composition according to any one of claims 1 to 5, wherein said pigment is selected from carbon black, iron oxide red, titanium dioxide, preferably said pigment is added to said polyvinyl chloride foamed composition in the form of a color masterbatch or in the form of a mill base.

7. The polyvinyl chloride foaming composition according to any one of claims 1 to 6, wherein the auxiliary agent is selected from the group consisting of inorganic foaming catalysts, organic interfacial compatibility improving additives, and combinations thereof.

8. Artificial leather comprising a PVC foamed layer made of the polyvinyl chloride foamed composition of any one of claims 1 to 7.

9. The artificial leather according to claim 8, wherein the artificial leather comprises a base fabric layer, the PVC foaming layer and a skin layer in this order from bottom to top, preferably the artificial leather further has a surface treatment agent layer applied on the skin layer and/or the artificial leather further comprises an adhesive layer between the base fabric layer and the PVC foaming layer, preferably the surface treatment agent is paint.

10. A method for preparing artificial leather comprising applying the polyvinyl chloride foaming composition of any one of claims 1 to 7 to a base fabric layer.

11. Use of a polyvinyl chloride foamed composition according to any one of claims 1 to 7 for the manufacture of artificial leather.

Technical Field

The present invention relates to a polyvinyl chloride foaming composition for manufacturing artificial leather. More particularly, the present invention relates to a polyvinyl chloride foaming composition for manufacturing artificial leather for automobile interiors and similar articles.

Background

Polyvinyl chloride (i.e., PVC, hereinafter the terms "PVC" and "polyvinyl chloride" are used interchangeably) is a major raw material in the production and development of artificial leather. The paste made of polyvinyl chloride added with plasticizer and stabilizer is easy to be colored, and after the coating is gelatinized, it can be made into various products with appearance similar to leather by printing, embossing or embossing and printing. The artificial leather made of the polyvinyl chloride has good strength and wear resistance, is simple and convenient to produce, rich in raw materials, uniform in product quality, convenient to cut and use, light in weight, water-resistant and low in cost, and therefore, the artificial leather is widely used for manufacturing automotive interior materials.

In general, PVC artificial leather used for manufacturing automotive interior materials comprises the following layers: PVC epidermal layer, PVC foaming layer and base cloth layer. In the production of PVC artificial leather, raw materials used include plasticizers, PVC powder, stabilizers, foaming agents, and also surface treatment agents, base cloth backings, adhesives, and the like. Many of these materials generate odors, and low boiling point organic volatiles such as plasticizers, stabilizers, and surface treatment agents generate odors, and blowing agents may emit odors.

In the present society, vehicles are the main places where people stay, and therefore the environment inside vehicles is also receiving attention. The conventional PVC artificial leather raw material emits odor such that the artificial leather manufactured therefrom has an odor grade of 4 or more according to the odor test method PV3900C3, i.e., has a noticeable odor and is unpleasant to the human. This cannot meet the requirements of most medium and high-end automobiles in China.

For this reason, many methods have been developed to reduce the odor grade of PVC artificial leather. CN201510609647.9 provides a production method of multifunctional aromatic environment-friendly PVC leather. In the method, the prepared PVC leather comprises a foaming layer and a surface layer, wherein in order to improve the odor grade of the PVC leather, oily essence is added into the formula of the surface layer material, and the polyvinyl chloride in the surface layer is special polyvinyl chloride resin. In this application, an oily fragrance is added to the top layer. However, the addition of perfume to the top layer can cause surface defects, such as pinholes, to develop during processing of the top layer, thereby compromising the quality of the leather.

CN201710374384.7 relates to a low-odor PVC artificial leather and a method for preparing the same, wherein the odor grade of the PVC artificial leather is reduced by selection of plasticizer and addition of odor adsorbent, and it requires that the foaming agent used is a physical foaming agent. To achieve its object, CN201710374384.7 excluded the use of chemical foaming agents in the preparation of PVC artificial leather. However, in leather production, the chemical foaming agent process is more stable, and the product has better hand feeling. There is therefore a great need for the use of chemical foaming agents in leather production.

In the field of PVC artificial leather, there is a need to further develop a technical solution for reducing the odor grade of PVC artificial leather to improve the car interior environment.

Disclosure of Invention

As described above, in the field of automotive interiors, it is required to reduce the odor level of PVC artificial leather used for manufacturing automotive interiors so that the interior environment of automobiles can be improved to meet the interior odor level requirements of medium and high-end automobiles.

In order to solve the technical problem, the invention provides a polyvinyl chloride foaming composition which comprises 0.1-1% of essence.

In general, the present invention relates to the following aspects.

In a first aspect, the present invention relates to a polyvinyl chloride foaming composition for manufacturing artificial leather, comprising, per 100 parts by weight of said composition:

50-60 parts by weight, for example 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, or 60 parts by weight or a part in the range between any two of these values;

35 to 50 parts by weight, for example 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49 or 50 parts by weight or a part in the range between any two of these values;

1 to 3 parts by weight, such as 1, 2, or 3 parts by weight, or a part in a range between any two of these values;

2 to 7 parts by weight, such as 2, 3, 4, 5, 6, or 7 parts by weight, or a part in a range between any two of these values;

0.1 to 1 part by weight, for example 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, or 1 part by weight or a part in the range between any two of these values;

0 to 6 parts by weight, for example 0, 1, 2, 3, 4, 5, or 6 parts by weight or a part in the range between any two of these values; and

0 to 3 parts by weight, for example 0, 1, 2 or 3 parts by weight or a part in the range between any two of these values.

In a second aspect, the present invention relates to a PVC artificial leather comprising a layer made of the polyvinyl chloride foaming composition of the present invention.

In a third aspect, the present invention relates to a method for preparing the artificial leather of the present invention, which comprises applying the polyvinyl chloride foaming composition of the present invention onto a base fabric layer.

In a fourth aspect, the present invention relates to the use of the polyvinyl chloride foamed composition of the invention for the manufacture of artificial leather.

The polyvinyl chloride foaming composition of the present invention successfully improves the odor grade of the prepared PVC artificial leather while avoiding the risk of forming defects on the skin layer of the artificial leather, and has no particular limitation on the foaming agent, and various physical foaming agents and chemical foaming agents suitable for the field of PVC artificial leather can be used.

Drawings

FIG. 1 schematically illustrates an exemplary reverse transfer coating process according to the present invention. Wherein 101 denotes release paper delivery, 102 denotes release paper storage, 103 denotes skin layer coating, 104 denotes drying tunnel, 105 denotes cooling, 106 denotes foaming layer coating, 107 denotes drying tunnel, 108 denotes cooling, 109 denotes adhesive coating, 110 denotes fabric unwinding (optional), 111 denotes lamination, 112 denotes drying tunnel, 113 denotes cooling, 114 denotes expanded vinyl storage, 115 denotes release paper winding, and 116 denotes winding of artificial leather.

Figure 2 schematically illustrates a printing process according to the invention. Wherein 201 denotes artificial leather delivery, 202 denotes storage, 203 denotes preheating, 204 denotes printing, 205 denotes drying, 206 denotes cooling, and 207 denotes winding.

Figure 3 schematically illustrates an embossing process according to the present invention. Wherein 301 represents artificial leather delivery, 302 represents a heating cylinder, 303 represents air heating, 304 represents embossing, 305 represents cooling, 306 represents printing, 307 represents inspection, 308 represents storage, and 309 represents rolling.

Detailed Description

The present invention will be described in further detail with reference to specific embodiments thereof. The specific embodiments described herein are illustrative of exemplary embodiments of the invention for the purpose of clarity and are not intended to limit the scope of the invention. Those skilled in the art, on the basis of these exemplary embodiments, may make modifications, combinations, and the like of the features of these embodiments without departing from the spirit and scope of the present invention. The embodiments obtained by such modifications and combinations are still within the scope of the present invention. The scope of the invention is defined by the claims.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

In this specification, unless otherwise stated, percentages, parts, etc. given are by weight.

The polyvinyl chloride foaming composition of the present invention is suitable for, but not limited to, the preparation of artificial leather for automotive interiors. The term "automobile" as used herein has its broadest meaning. It may include common motor vehicles such as buses, cars, trucks, buses for various commercial vehicles; but also various water vehicles, as well as aircraft, etc. The artificial leather prepared by the polyvinyl chloride foaming composition is also suitable for preparing products similar to automotive interiors.

In a first aspect thereof, the present invention relates to a polyvinyl chloride foaming composition for manufacturing artificial leather, comprising, per 100 parts by weight of the composition:

50-60 parts by weight of PVC resin;

35-50 parts by weight of a plasticizer;

1-3 parts by weight of a foaming agent;

2-7 parts by weight of a stabilizer;

0.1-1 parts by weight of essence;

0-6 parts by weight of a pigment; and

0-3 parts of auxiliary agent.

In the present invention, there is no particular requirement for the PVC resin suitable for the manufacture of artificial leather, as long as it can be used for the manufacture of artificial leather. Those skilled in the art know how to select a suitable PVC resin to form the polyvinyl chloride foaming composition of the present invention. In the polyvinyl chloride foaming composition of the present invention, the PVC resin is used in an amount of 50 to 60 parts by weight, for example, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, or 60 parts by weight or any value within a range between any two of these values, based on 100 parts by weight of the composition.

The polyvinyl chloride foaming composition of the present invention comprises a plasticizer. Plasticizers may be used in amounts of 35 to 50 parts by weight, such as 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49 or 50 parts by weight or any number in the range between any two of these values, based on 100 parts by weight of the composition.

The plasticizer contained in the polyvinyl chloride foaming composition of the present invention may be any suitable liquid plasticizer suitable for use in the manufacture of artificial leather. One skilled in the art will select the appropriate plasticizer depending on the particular application and requirements. For example, in one embodiment of the present invention, the plasticizer of the present invention may be selected from the group consisting of epoxidized soybean oil plasticizers and o-benzene plasticizers. For example, the polyvinyl chloride foaming composition of the present invention may contain both an epoxidized soybean oil type plasticizer and an o-benzene type plasticizer. In one embodiment, the polyvinyl chloride foaming composition of the present invention includes both an epoxidized soybean oil plasticizer and an o-benzene plasticizer in a weight ratio of the epoxidized soybean oil plasticizer to the o-benzene plasticizer of 10: 1. The polyvinyl chloride foaming composition of the present invention may also use only the ortho-benzene plasticizer. The ortho-benzene plasticizer may be ortho-benzene straight-chain plasticizer or ortho-benzene branched plasticizer. The ortho-benzene linear plasticizer and the ortho-benzene branched plasticizer may be used singly or in admixture of, for example, 1:2 in a mixing ratio of the ortho-benzene linear plasticizer to the ortho-benzene branched plasticizer.

The foaming agent is included in the polyvinyl chloride foaming composition of the present invention in an amount of 1 to 3 parts by weight, for example, 1, 2, 3 parts by weight, or any value within a range between any two of these values, based on 100 parts by weight of the polyvinyl chloride foaming composition of the present invention.

Both physical foaming agents and chemical foaming agents are suitable for the polyvinyl chloride foaming composition of the present invention as long as the foaming agents can be used for the preparation of artificial leather. Those skilled in the art will select a suitable foaming agent for preparing the polyvinyl chloride foaming composition of the present invention according to the specific application of artificial leather. For example, the blowing agent may be dissolved inert gas, water, ethyl acetate, methanol, ethanol, diethyl ether, hydrofluorocarbons, azodicarbonamide, and the like. Nitrogen, air, carbon dioxide, and the like are also useful blowing agents. Or compounds that decompose at a temperature to generate a gas such as nitrogen, such as azides, are also useful blowing agents.

The polyvinyl chloride foaming composition of the invention also comprises a stabilizer. The stabilizer is present in an amount of 2 to 7 parts by weight, for example 2, 3, 4, 5, 6, or 7 parts by weight, or any value within a range between any two of these values, based on 100 parts by weight of the polyvinyl chloride foaming composition of the present invention.

The stabilizer contained in the polyvinyl chloride foaming composition of the present invention may be any suitable stabilizer suitable for use in the manufacture of artificial leather, for example, organic epoxy-based stabilizers, calcium zinc-based stabilizers, organic tin-based stabilizers, and combinations thereof. One skilled in the art will select the appropriate stabilizer depending on the particular application and requirements. In one embodiment, the stabilizer included in the polyvinyl chloride foaming composition of the present invention is an organic epoxy-based stabilizer. In another embodiment, the stabilizer included in the polyvinyl chloride foaming composition of the present invention is a calcium zinc composite stabilizer.

The polyvinyl chloride foaming composition of the invention comprises a perfume. The perfume may be used in an amount of 0.1 to 1 part by weight, for example 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, or 1 part by weight or any number in the range between any two of these values, based on 100 parts by weight of the composition. In a preferred embodiment, the part of perfume is 0.1 to 0.7 part by weight, preferably 0.1 to 0.6 part by weight, more preferably 0.1 to 0.5 part by weight, based on 100 parts by weight of the composition.

The essence used in the invention is any essence suitable for the field of artificial leather manufacture, as long as the essence is compatible with the used plasticizer, has no substance with eight limits of GB27630, and meets the European Union REACH and ELV regulations. One skilled in the art can select suitable perfume according to actual application and product requirements. For example, the fragrance may be floral or plant, such as lily, gardenia, mint, lavender, honeysuckle, orange, rose, jasmine, tea, pine, sandalwood; fruit flavors, such as apple, orange, lemon; other notes, such as leather notes, male notes.

Without intending to be bound by any theory, the inventors surprisingly found that by using the polyvinyl chloride foaming composition of the present invention, the odor grade of the artificial leather produced is significantly reduced.

In the polyvinyl chloride foaming composition of the present invention, a pigment may optionally be further included. The pigment is present in an amount of 0 to 6 parts by weight, for example 0, 1, 2, 3, 4, 5, or 6 parts by weight, or any number in the range between any two of these numbers, based on 100 parts by weight of the polyvinyl chloride foaming composition of the present invention.

The pigment used in the present invention is any pigment suitable for use in the field of artificial leather manufacture. One skilled in the art can select suitable pigments to prepare the polyvinyl chloride foaming composition of the present invention according to the requirements of a specific application. The pigment may be added to the polyvinyl chloride foaming composition of the present invention in any suitable manner. For example, the pigment may be added directly as such to the composition of the present invention, or the pigment may also be added to the composition of the present invention in the form of a masterbatch. In some embodiments of the invention, the pigment may also be added to the composition of the invention in the form of a mill base. The color paste can be organic color paste or inorganic color paste, such as color paste obtained from carbon black, iron oxide red and titanium dioxide. Wherein the mill base may be a paste formed from pigment powder together with a plasticizer.

In the polyvinyl chloride foaming composition of the present invention, an auxiliary may be optionally further included. The adjuvant is present in an amount of 0 to 3 parts by weight, for example 0, 1, 2, or 3 parts by weight or any value within a range between any two of these values, based on 100 parts by weight of the polyvinyl chloride foaming composition of the present invention.

The auxiliary used in the present invention is any auxiliary suitable for use in the field of artificial leather manufacture. Depending on the specific preparation and application of the artificial leather, one skilled in the art can select suitable auxiliaries to prepare the polyvinyl chloride foaming composition of the present invention. For example, the auxiliary may be an inorganic foaming catalyst and an organic interface compatibility-improving additive.

In a second aspect of the present invention, the present invention relates to PVC artificial leather comprising a PVC foaming layer made of the polyvinyl chloride foaming composition of the present invention.

Generally, the artificial leather of the present invention comprises a base fabric layer, a PVC foam layer and a skin layer in sequence from bottom to top, wherein the PVC foam layer is made of the polyvinyl chloride foam composition of the present invention. Optionally, an adhesive layer may also be included between the base fabric layer and the PVC foam layer. The PVC foaming layer added with the essence is arranged between the base cloth layer and the surface layer, so that the volatilization speed of the essence can be effectively reduced, and the service life of the product is prolonged.

The skin layer suitable for forming the artificial leather of the present invention has no special requirement as long as it can be combined with a PVC foam layer to form artificial leather. One skilled in the art will select a suitable skin layer depending on the application. In a preferred embodiment, the skin layer of the artificial leather of the present invention is a PVC skin layer.

In some embodiments, the artificial leather of the present invention may also not comprise a scrim layer. For example, in applications where the artificial leather of the present invention is used for door panel substrates.

The artificial leather of the present invention has no special requirements for the base fabric as long as it is suitable for use as a base fabric for the production of PVC artificial leather. One skilled in the art can select a suitable base fabric according to the actual application. For example, the base fabric suitable for the present invention may be a chemical fiber fabric, a polyolefin based chemical material, cotton, hemp, polyester, or the like.

In one embodiment, the artificial leather of the present invention further comprises a skin layer. The present invention has no particular requirement for the skin layer as long as it is suitable as a skin layer of PVC artificial leather.

In some embodiments of the present invention, in order to improve the gloss, hand, light resistance, heat resistance, and dirt resistance of the artificial leather of the present invention, a surface treatment agent layer is further applied on the skin layer of the PVC artificial leather of the present invention by surface treatment. Preferably, the surface treatment agent layer is a paint layer. The surface treatment agent layer may be applied by printing or coating.

There is no particular requirement for the thickness of each layer constituting the PVC artificial leather of the present invention. One skilled in the art can select the appropriate thickness according to the particular requirements.

The weight percentage of each layer of the PVC artificial leather of the present invention to the total artificial leather can be given as the amount conventionally used in the art.

In a third aspect of the present invention, the present invention relates to a method for preparing the artificial leather of the present invention, which comprises applying the polyvinyl chloride foaming composition of the present invention onto a base fabric layer.

One embodiment of the present invention is further illustrated in conjunction with figure 1. In fig. 1, a release paper is delivered at 101, and the delivered release paper is stored through a release paper at 102 and then delivered to 103 for skin coating. Through the storage of the release paper 102, the machine does not need to be stopped when the release paper is replaced, thereby realizing continuous production. The release paper coated with the skin layer is sent to a drying pipeline 104 for drying, then cooled by a cooling pipeline 105, and the cooled material is further sent to a drying pipeline 106 for coating the polyvinyl chloride foaming composition of the invention on the skin layer to form a PVC foaming layer. The coated material is sent to a drying line 107 for drying and then cooled by 108. The cooled mass is coated with adhesive at 109. The fabric is also unwound through 110 and transported to 111 where the adhesive coated material from 109 is laminated with the fabric, where the fabric is covered on the surface of the foamed layer. The laminated material is sent to a drying pipeline 112 for drying, and then sent to a pipeline 113 for cooling, wherein 114 represents the storage of the material after the foaming of the PVC foaming layer. 114, so that no production downtime is required when changing rolls. The release paper is peeled from the formed laminate material at 115 and wound, and the manufactured artificial leather is wound at 116.

Preferably, the artificial leather produced on 116 may be subjected to a surface treatment to further improve the performance of the artificial leather of the present invention. The surface treatment process in one embodiment of the present invention is described with reference to fig. 2. The artificial leather manufactured by the present invention is unwound and sent 201, and 202 represents a storage stage for ensuring that the front and rear roll switching process does not need to be stopped, thereby realizing continuous production. The artificial leather is then preheated at 203. The preheated artificial leather is subjected to a series of printers at 204 where the paint is printed on the skin layer of the artificial leather. The printed artificial leather is sent to 205 to be dried and then cooled at 206. The cooled surface-treated artificial leather is rolled at 207.

Preferably, the artificial leather produced on 116 or the surface-treated artificial leather obtained on 207 may be embossed. The embossing process in one embodiment of the present invention is illustrated in conjunction with figure 3. The artificial leather of the present invention (with or without surface treatment) is sent 301 to a heating cylinder 302 for heating. The heated artificial leather is further air-heated at 303. The artificial leather is then sent to 304 for embossing. The embossed artificial leather is cooled by 305 and the resulting material is sent to 307 for inspection, stored in 308 and then taken up in 309.

In some embodiments where a base fabric is not used, the embossed artificial leather is cooled by 305 and then may be sent to 306 for printing, where an adhesive is printed on the side opposite the embossed side of the artificial leather at 306 to increase the adhesion of the artificial leather to a substrate (e.g., a door panel chassis), and then the material from 306 is sent to 307 for inspection, stored at 308, and then rolled at 309.

The artificial leather coiled material obtained after the preparation can be cut and packaged according to the required size.

In a fourth aspect, the present invention also relates to the use of the polyvinyl chloride foamed composition of the invention for the manufacture of artificial leather.