Artificial leather and car seats

Abstract

The application relates to the technical field of leather materials, in particular to an artificial leather and a car seat. The artificial leather comprises a base cloth layer and a lamination of a bonding layer, a foaming layer and a surface layer in sequence along the direction away from the surface of the base cloth layer, the surface layer contains an anti-amine agent, the anti-amine agent comprises a perchlorate and a hypochlorite, the weight of the hypochlorite is less than or equal to the weight of the perchlorate, and the weight of the anti-amine agent is 0.01-2.5% of the total weight of the surface layer. The artificial leather provided in the application uses a special anti-amine agent in the surface layer, and based on the synergistic effect of the perchlorate and the hypochlorite in the anti-amine agent, not only can the volatilized amine be effectively captured, so that the yellowing is better inhibited, the overall appearance and the service life of the artificial leather are improved, but also the flame resistance of the artificial leather can be ensured, and the other properties of the leather material cannot be deteriorated. Therefore, the artificial leather provided in the application has the characteristics of good anti-yellowing and flame resistance, and has a good application prospect.

Description

Technical Field

[0001] This application belongs to the field of leather material technology, and particularly relates to artificial leather and automobile seats. Background Technology

[0002] Artificial leather is generally made by foaming or coating various formulations of polyvinyl chloride (PVC) or polyurethane (PU) onto a woven or non-woven fabric base. Artificial leather closely resembles genuine leather and can be widely used in daily necessities and industrial products.

[0003] Vehicle seats can be fitted with artificial leather. Over time, the surface of light-colored artificial leather will gradually turn a difficult-to-remove yellow, which not only affects the overall appearance of the seat but also shortens its lifespan. The main reasons for this yellowing are: firstly, the leather material of the seat contains foam. After a certain period of use, the foam gradually releases amines, which evaporate and diffuse into the leather material and the outside, while simultaneously undergoing a chemical reaction to produce colored substances that adhere to the surface of the leather, causing yellowing that is more difficult to remove. Secondly, the antioxidants added to the surface of the artificial leather will be oxidized and consumed over time. The compounds formed after the antioxidants are oxidized will also turn yellow, causing the light-colored leather material to yellow.

[0004] To mitigate the aforementioned yellowing phenomenon, a common practice is to symbolically add a small amount of anti-amine agent, such as sodium perchlorate, to the surface layer and / or foam layer of artificial leather to reduce the risk of yellowing. However, this cannot effectively solve the yellowing problem of light-colored automotive interior materials. Patent document CN113529430 B discloses a PVC synthetic leather for PU sponge composite, which adds a certain amount of sodium perchlorate anti-amine agent to the adhesive layer. This can reduce the content of amine substances that penetrate into the surface layer during storage and transportation, thus effectively solving the yellowing problem during storage and transportation. However, since the anti-amine agent is added to the adhesive layer, it can only improve the anti-yellowing performance in a short period of time and cannot guarantee the anti-yellowing of artificial leather during use. At the same time, it will lead to a decrease in the flame retardancy of artificial leather materials, making it difficult to meet industry requirements. Moreover, in comparative examples 1 and 2, attempts were made to add the conventional anti-amine agent sodium perchlorate to the surface layer and / or foam layer, and the yellowing test results were not ideal. Even with an increased amount of anti-amine agent, the yellowing phenomenon could not be effectively solved. Summary of the Invention

[0005] The purpose of this application is to provide an artificial leather and a car seat, aiming to solve the problem of yellowing of the artificial leather surface while ensuring the overall performance of the artificial leather material.

[0006] To achieve the above-mentioned objectives, the technical solution adopted in this application is as follows: In a first aspect, this application provides an artificial leather comprising a base fabric layer and an adhesive layer, a foam layer and a surface layer sequentially stacked in a direction away from the surface of the base fabric layer. The surface layer contains an anti-amine agent, which includes perchlorate and hypochlorite. The weight of hypochlorite is less than or equal to the weight of perchlorate, and the weight of the anti-amine agent is 0.01 to 2.5% of the total weight of the surface layer.

[0007] The artificial leather provided in this application uses a unique anti-amine agent in its surface layer. Specifically, it is made by adding less than or equal to the weight of perchlorate to hypochlorite. Based on the synergistic effect of perchlorate and hypochlorite, this anti-amine agent can effectively capture volatile amines in the surface layer, thereby better inhibiting yellowing and improving the overall appearance and service life of the artificial leather. Furthermore, adding the anti-amine agent to the surface layer does not adversely affect the flame retardancy of the artificial leather, meeting the requirements for flame retardancy. At the same time, the anti-amine agent, accounting for 0.01~2.5% of the total weight of the surface layer, will not degrade other properties of the leather material. Therefore, the artificial leather provided in this application, while meeting the requirements for flame retardancy and other properties, also has good anti-yellowing characteristics, showing great application potential.

[0008] In one embodiment, the weight of hypochlorite is less than or equal to 30% of the weight of perchlorate; and / or, the weight per unit area of ​​the antiamine agent is 0.1~5 g / m². 2 Due to the strong oxidizing properties of hypochlorite, the overall stability of the amine-resistant agent is better when its weight is less than or equal to 30% of the weight of perchlorate. This effectively improves the amine-capturing ability of the amine-resistant agent in the surface layer, and the dosage of the amine-resistant agent per unit area in the surface layer is 0.1~5 g / m². 2 This ensures good anti-yellowing effects while maintaining other properties of the leather material in good condition.

[0009] In one embodiment, the perchlorate is selected from at least one of sodium perchlorate, calcium perchlorate, magnesium perchlorate, and barium perchlorate, and the hypochlorite is selected from at least one of sodium hypochlorite, calcium hypochlorite, magnesium hypochlorite, and barium hypochlorite. The antiamine agent formed by combining the above-mentioned types of perchlorates and hypochlorites can effectively solve the yellowing problem.

[0010] In one embodiment, the surface layer further includes an antioxidant, the weight of which is 0.1 to 5% of the total weight of the surface layer. The antioxidant based on the above weight enhances the antioxidant properties of the surface layer. Through the antioxidant reaction, it forms a protective layer for the artificial leather, which can further improve the service life of the artificial leather.

[0011] In one embodiment, the antioxidant includes a hindered phenolic primary antioxidant and a phosphite secondary antioxidant, wherein the weight of the phosphite secondary antioxidant is less than or equal to the weight of the hindered phenolic primary antioxidant. Based on the synergistic effect of these two antioxidants, the formation of colored substances during oxidation can be inhibited. By combining the effects of anti-amine agents with the effects of antioxidants, yellowing of the leather material is inhibited from two aspects, thus ensuring that the artificial leather does not yellow for a long period during use. This further improves the visual experience and lifespan of the leather material during use.

[0012] In one embodiment, the hindered phenolic primary antioxidant is selected from at least one of octadecyl β-(4-hydroxy-3,5-di-tert-butylphenyl)propionate and pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]; and / or, the phosphite secondary antioxidant is selected from at least one of distearate pentaerythritol diphosphite, phenyl diisodecyl phosphite, and tri(dodecyl) phosphite. The combination of the above-mentioned hindered phenolic primary antioxidants and phosphite secondary antioxidants can better inhibit the formation of colored substances.

[0013] In one embodiment, the surface layer further includes a stabilizer, the weight of which is 0.5-5% of the total weight of the surface layer. The stabilizer, based on this weight, enhances the stability of the surface layer. While acting as an anti-amine agent and antioxidant, the presence of the stabilizer ensures both anti-yellowing effects and the overall stability of the artificial leather's performance, thereby further extending its service life.

[0014] In one embodiment, the stabilizer is selected from at least one of lead stearate, zinc stearate, and barium stearate; the above-mentioned stabilizers give the surface layer better stability and better anti-yellowing effect.

[0015] In one embodiment, the surface layer further includes a resin selected from polyvinyl chloride resin or polyurethane resin. The aforementioned types of resins allow the artificial leather of this application to be either PVC artificial leather or PU artificial leather. Different types of artificial leather can be applied, all achieving the effect of preventing yellowing.

[0016] In one embodiment, the artificial leather further includes a surface treatment layer located on the side of the surface layer away from the foam layer. The surface treatment layer is made of at least one of polycarbonate polyurethane resin, polyacrylic resin, and polyester polyurethane resin. The surface treatment layer increases the abrasion resistance of the artificial leather and helps the added components in the surface layer to better perform their anti-yellowing function.

[0017] In one embodiment, the surface treatment layer and / or foam layer contain an anti-amine agent. By adding the anti-amine agent to the stacked foam layer, surface layer, and surface treatment layer, the volatilized amine passes through the foam layer, surface layer, and / or surface treatment layer layer by layer. Each layer captures a portion of the amine, essentially ensuring that all volatilized amine is captured. This more effectively prevents yellowing caused by amine volatilization, extending the anti-yellowing time of the artificial leather material in this application, thereby further increasing the service life of the artificial leather material.

[0018] Secondly, this application provides a car seat, which includes a seat body and artificial leather disposed on the surface of the seat body, wherein the artificial leather is the aforementioned artificial leather of this application.

[0019] The car seat provided in this application has a unique artificial leather on its surface. This artificial leather not only meets the requirements for flame retardancy and other properties, but also has good anti-yellowing characteristics. This ensures that the light-colored artificial leather will not yellow over a long period of time during use, thereby improving the overall appearance and service life of the car seat. Therefore, the car seat of this application has a very good user experience in the car. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of artificial leather provided in one embodiment of this application; Figure 2 This is a schematic diagram of the structure of artificial leather provided in another embodiment of this application; The following are the labeling elements in the figure: 1-Surface layer; 2-Foaming layer; 3-Adhesive layer; 4-Base fabric layer; 5-Surface treatment layer; 51-Polyacrylic acid layer; 52-Polyurethane layer. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects of this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0023] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0024] In this application, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of a single item or a plurality of items.

[0025] It should be understood that in the various embodiments of this application, the order of the above processes does not imply the order of execution. Some or all steps may be executed in parallel or sequentially. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0026] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0027] The weights of the relevant components mentioned in the embodiments of this application can refer not only to the specific content of each component, but also to the proportional relationship between the weights of the components. Therefore, any scaling up or down of the content of the relevant components according to the embodiments of this application is within the scope disclosed in the embodiments of this application. Specifically, the mass described in the embodiments of this application can be a well-known unit of mass in the chemical industry, such as µg, mg, g, or kg.

[0028] The terms "first" and "second" are used only to describe purpose, to distinguish purposes such as substances from one another, and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0029] The first aspect of this application provides an artificial leather, such as... Figure 1 As shown, the artificial leather in this embodiment includes a base fabric layer 4 and an adhesive layer 3, a foam layer 2 and a surface layer 1 sequentially stacked in a direction away from the surface of the base fabric layer 4. The surface layer 1 contains an antiamine agent, which includes perchlorate and hypochlorite. The weight of hypochlorite is less than or equal to the weight of perchlorate, and the weight of the antiamine agent is 0.01 to 2.5% of the total weight of the surface layer.

[0030] The artificial leather provided in this application uses a unique anti-amine agent in its surface layer 1. Specifically, it is made by adding less than or equal to the weight of perchlorate to hypochlorite. Based on the synergistic effect of perchlorate and hypochlorite, the anti-amine agent can effectively capture volatile amines in surface layer 1, thereby better inhibiting yellowing and improving the overall appearance and service life of the artificial leather. Moreover, adding the anti-amine agent to the surface layer does not adversely affect the flame retardancy of the artificial leather, meeting the flame retardancy requirements. Furthermore, the anti-amine agent, accounting for 0.01~2.5% of the total weight of the surface layer, will not degrade other properties of the leather material. Therefore, the artificial leather provided in this application not only meets the requirements for flame retardancy and other properties but also has good anti-yellowing characteristics, showing great application potential.

[0031] In one embodiment, the weight of hypochlorite is less than or equal to 30% of the weight of perchlorate, that is, the weight ratio of hypochlorite to perchlorate in the anti-amine agent is less than or equal to 0.3:1, for example, the weight ratio of hypochlorite to perchlorate is 0.01:1, or 0.05:1, or 0.1:1, or 0.2:1, or 0.25:1, or 0.3:1. Based on the strong oxidizing properties of hypochlorite, the overall stability of the anti-amine agent is good within such a specific gravity range, which greatly improves the amine trapping ability of the anti-amine agent in the surface layer 1. When amines evaporate from the foam and move to the interface of the surface layer 1, the anti-amine agent in the above proportion can quickly trap and react with the amines, thereby inhibiting the yellowing of artificial leather. At this content of hypochlorite, the strong oxidizing properties will not have a significant impact on the performance of the leather material or the surface layer.

[0032] Furthermore, the antiamine agent has a unit area weight of 0.1~5 g / m². 2 For example, the antiamine agent in surface layer 1 has a unit area weight of 0.1 g / m². 2 0.5g / m 2 1g / m 2 2g / m 2 2.5g / m 2 3g / m 2 4g / m 2 5g / m 2 Specifically, the anti-amine agent can be composed of hypochlorite and perchlorate. The amount of anti-amine agent used per unit area in surface layer 1 can ensure a good anti-yellowing effect while ensuring that it does not have a deteriorating effect on other properties of the leather material.

[0033] In one embodiment, the perchlorate is selected from at least one of sodium perchlorate, calcium perchlorate, magnesium perchlorate, and barium perchlorate, and the hypochlorite is selected from at least one of sodium hypochlorite, calcium hypochlorite, magnesium hypochlorite, and barium hypochlorite. The anti-amine agent formed by combining the above-mentioned types of perchlorates and hypochlorites can effectively solve the yellowing problem in surface layer 1. Specifically, the combination of perchlorate and hypochlorite can be a combination of perchlorate and hypochlorite of the same metal; for example, sodium perchlorate and sodium hypochlorite form an anti-amine agent, calcium perchlorate and calcium hypochlorite form an anti-amine agent, magnesium perchlorate and magnesium hypochlorite form an anti-amine agent, and barium perchlorate and barium hypochlorite form an anti-amine agent. Furthermore, the anti-amine agent formed by combining barium perchlorate and barium hypochlorite has a better anti-yellowing effect in the surface layer 1 of artificial leather.

[0034] In one embodiment, the surface layer 1 material of the artificial leather may include at least one material selected from resin, antioxidant and stabilizer, in addition to the antiamine agent mentioned above.

[0035] Specifically, surface layer 1 also includes antioxidants, with the antioxidant weight being 0.1% to 5% of the total weight of surface layer 1, such as 0.1%, 0.5%, 1%, 2%, 3%, 4%, 5%, etc. Based on this weight, the antioxidants can enhance the antioxidant properties of surface layer 1, forming a protective layer for the artificial leather through antioxidant reactions, thereby further extending the service life of the artificial leather. Furthermore, the antioxidants include hindered phenolic primary antioxidants and phosphite secondary antioxidants, with the weight of the phosphite secondary antioxidants being less than or equal to the weight of the hindered phenolic primary antioxidants. Based on the synergistic effect of the hindered phenolic primary antioxidants and phosphite secondary antioxidants, the formation of colored substances during oxidation can be inhibited in surface layer 1. In addition to the action of anti-amine agents, the aforementioned antioxidants can also inhibit yellowing of the leather material from two aspects, thus ensuring that the artificial leather does not yellow for a long period of use, thereby further improving the visual experience and service life of the leather material. Furthermore, the aforementioned hindered phenolic primary antioxidant is selected from at least one of β-(4-hydroxy-3,5-di-tert-butylphenyl)propionate n-octadecyl ester and pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], and the aforementioned phosphite auxiliary antioxidant is selected from at least one of distearate pentaerythritol diphosphite, phenyl diisodecyl phosphite, and tri(dodecyl) phosphite. The combination of the aforementioned hindered phenolic primary antioxidant and phosphite auxiliary antioxidant can better inhibit the formation of colored substances in surface layer 1. More preferably, the combination of β-(4-hydroxy-3,5-di-tert-butylphenyl)propionate n-octadecyl ester and tri(dodecyl) phosphite provides even better antioxidant effects.

[0036] Specifically, surface layer 1 also includes a stabilizer, the weight of which is 0.5-5% of the total weight of surface layer 1, such as 0.5%, 1%, 2%, 3%, 4%, 5%, etc. The stabilizer, based on the aforementioned weight, enhances the stability of surface layer 1. While acting as an anti-amine agent and antioxidant, the presence of the stabilizer ensures both anti-yellowing effect and overall stability of the artificial leather's performance, thereby further extending its service life. Furthermore, the stabilizer is selected from at least one of lead stearate, zinc stearate, and barium stearate; these types of stabilizers give surface layer 1 better stability, resulting in a better anti-yellowing effect. Moreover, lead stearate stabilizer is more effective at preventing yellowing than other stabilizers in this design.

[0037] Specifically, surface layer 1 further includes a resin, which is selected from polyvinyl chloride resin or polyurethane resin. The choice of the above-mentioned resin type allows the artificial leather of this application to be either PVC artificial leather or PU artificial leather, thus enabling the application of different types of artificial leather to achieve the effect of preventing yellowing.

[0038] In one embodiment, such as Figure 2 As shown, the artificial leather also includes a surface treatment layer 5 located on the side of the surface layer 1 away from the foam layer 2. The material of the surface treatment layer 5 includes at least one of polycarbonate polyurethane resin, polyacrylic resin, and polyester polyurethane resin. The surface treatment layer 5 can increase the abrasion resistance of the artificial leather, and the anti-amine agent in the surface layer 1 will not allow the amine to move to the surface treatment layer 5 after reacting with the amine. Even if the reacted substance will turn yellow, the yellowing will not be visible from the surface treatment layer 5, thus protecting the added components in the surface layer 1 to better perform their anti-yellowing function. Further, the surface treatment layer 5 includes a layered polyurethane layer 52 (containing polycarbonate polyurethane resin or polyester polyurethane resin) and a polyacrylic layer 51 (containing polyacrylic resin). The polyurethane layer 52 stably bonds the polyacrylic layer 51, which has better abrasion resistance, to the surface of the artificial leather to form a layered structure of the surface treatment layer 5, thereby enabling the artificial leather surface of this embodiment to better perform anti-yellowing while having better abrasion resistance.

[0039] In one embodiment, the surface treatment layer 5 and / or the foaming layer 2 contain an anti-amine agent. By adding the anti-amine agent to the stacked foaming layer 2, surface layer 1, and surface treatment layer 5, the volatilized amine passes through the foaming layer 2, surface layer 1, and / or surface treatment layer 5 layer by layer, and each layer captures a portion of the amine. This essentially ensures that all volatilized amine is captured, more effectively preventing yellowing caused by amine volatilization.

[0040] Specifically, the type and amount of antiamine agent in surface treatment layer 5 and foam layer 2 can be the same as those in surface layer 1. Alternatively, the content of antiamine agent in surface treatment layer 5 and / or foam layer 2 can be less than that in surface layer 1. In this way, surface treatment layer 5 and / or foam layer 2 play an auxiliary role, while surface layer 1 plays the primary role in achieving complete amine capture. This achieves the best anti-yellowing effect with minimal antiamine agent usage. This allows the artificial leather material of this embodiment to resist yellowing for a longer period, thereby further increasing the service life of the artificial leather material.

[0041] In one embodiment, the surface layer 1 of the artificial leather, in addition to the antiamine agent, antioxidant, and stabilizer specific to this application, and the corresponding resin, may also contain plasticizers, ultraviolet absorbers, foaming agents, and fillers; the foaming layer coating amount can be 200~500 g / m². 2 .

[0042] In addition, the base layer 4 in artificial leather can be a three-shuttle warp-knitted fabric, with a dosage of 200~350g / m². 2 The material of the next layer 3 may include plasticizers, resin powders, stabilizers, antioxidants, UV absorbers, foaming agents, and fillers. The coating amount of the next layer 3 is 50~200 g / m². 2 The material of foam layer 2 may include plasticizers, resin powder, stabilizers, antioxidants, ultraviolet absorbers, foaming agents, and fillers. The coating amount of foam layer 2 is 200~500g / m². 2 The plasticizer can be selected from phthalic plasticizers with 9-12 carbon atoms (C9-C12), such as dimethyl phthalate (DMP) and diethyl phthalate (DEP). The resin powder can be selected from PVC emulsion powder with a degree of polymerization of 1000-3000. The stabilizer can be selected from calcium-zinc stabilizers; the antioxidant can be selected from antioxidant 1076 [β-(4-hydroxy-3,5-di-tert-butylphenyl)propionate n-octadecyl alcohol ester] and antioxidant 1010 [tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] pentaerythritol ester], etc. The ultraviolet absorber can be selected from 2-(2'-hydroxy-3',5'-dicumylphenyl)-benzotriazole, 2-hydroxy-4-n-octyloxybenzophenone, 2-hydroxy-4-methoxybenzophenone, etc. The foaming agent can be selected from azo foaming agents, with azodicarbonamide (ADC) and azobisisobutyronitrile (AIBN) being preferred. The filler can be calcium carbonate or talc. The surface treatment layer 5 is made of at least one of polycarbonate polyurethane resin, polyacrylic resin, and polyester polyurethane resin, and can be a mixture or laminate of one or more of these resins, with a coating amount of 30-80 g / m². 2 .

[0043] A second aspect of this application provides a car seat, which includes a seat body and artificial leather disposed on the surface of the seat body, wherein the artificial leather is the artificial leather described in the embodiments of this application.

[0044] The car seat provided in this application embodiment has a surface covered with artificial leather unique to this application embodiment. Based on the fact that the artificial leather not only meets the requirements of flame retardancy and other properties, but also has good anti-yellowing characteristics, it ensures that the light-colored artificial leather will not yellow over a long period of time during use, thereby improving the overall appearance and service life of the car seat. Therefore, the car seat of this application embodiment has a very good user experience in the car.

[0045] The following description is based on specific embodiments.

[0046] Example 1 A white artificial leather comprises a base fabric layer and an adhesive layer, a foam layer, and a surface layer, sequentially stacked in a direction opposite to the surface of the base fabric layer; the materials and amounts of each layer are as follows: Surface layer: Total amount 250g / m 2 Among them, plasticizer (DMP) 75g / m 2 PVC emulsifier 100g / m 2 Stabilizer (lead stearate) 1.5g / m 2 Antioxidant (1076) 1.39 g / m 2 Tris(dodecyl) phosphite 1.11 g / m 2 UV absorber (2-(2'-hydroxy-3',5'-dicumylphenyl)-benzotriazole) 1g / m 2 Foaming agent (ADC) 0.5g / m³ 2 30g / m³ of filler (calcium carbonate) 2 ; and antiamine agent (barium perchlorate 0.0125 g / m³) 2 Barium hypochlorite 0.0125 g / m 2 ).

[0047] Foaming layer: Total amount 315g / m 2 Among them, the plasticizer (DMP) is 85g / m³. 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.3g / m 2 Foaming agent (ADC) 1g / m 2 and filler (calcium carbonate) 20g / m 2 .

[0048] Next layer:Total amount 160g / m 2 Among them, plasticizer (DMP) 50g / m 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.2g / m 2 .

[0049] Base fabric layer: Three-shuttle warp-knitted fabric, 320g / m² 2 .

[0050] Example 2 A white artificial leather comprises a base fabric layer and an adhesive layer, a foam layer, and a surface layer, sequentially stacked in a direction opposite to the surface of the base fabric layer; the materials and amounts of each layer are as follows: Surface layer: Total amount 250g / m 2 Among them, plasticizer (DMP) 75g / m 2 PVC emulsifier 100g / m 2 Stabilizer (lead stearate) 1.5g / m 2 Antioxidant (1076) 1.39 g / m 2 Tris(dodecyl) phosphite 1.11 g / m 2 UV absorber (2-(2'-hydroxy-3',5'-dicumylphenyl)-benzotriazole) 1g / m 2 Foaming agent (ADC) 0.5g / m³ 2 30g / m³ of filler (calcium carbonate) 2 ; and antiamine agent (barium perchlorate 0.69 g / m 2 Barium hypochlorite 0.56 g / m 2 ).

[0051] Foaming layer: Total amount 315g / m 2 Among them, the plasticizer (DMP) is 85g / m³. 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.3g / m 2 Foaming agent (ADC) 1g / m 2 and filler (calcium carbonate) 20g / m 2 .

[0052] Next layer: Total amount 160g / m 2 Among them, plasticizer (DMP) 50g / m 2 PVC emulsifier 100g / m 2Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.2g / m 2 .

[0053] Base fabric layer: Three-shuttle warp-knitted fabric, 320g / m² 2 .

[0054] Example 3 A white artificial leather comprises a base fabric layer and an adhesive layer, a foam layer, and a surface layer, sequentially stacked in a direction opposite to the surface of the base fabric layer; the materials and amounts of each layer are as follows: Surface layer: Total amount 250g / m 2 Among them, plasticizer (DMP) 75g / m 2 PVC emulsifier 100g / m 2 Stabilizer (lead stearate) 1.5g / m 2 Antioxidant (1076) 1.39 g / m 2 Tris(dodecyl) phosphite 1.11 g / m 2 UV absorber (2-(2'-hydroxy-3',5'-dicumylphenyl)-benzotriazole) 1g / m 2 Foaming agent (ADC) 0.5g / m³ 2 30g / m³ of filler (calcium carbonate) 2 ; and antiamine agent (barium perchlorate 1.56 g / m³) 2 Barium hypochlorite 0.94 g / m 2 ).

[0055] Foaming layer: Total amount 315g / m 2 Among them, the plasticizer (DMP) is 85g / m³. 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.3g / m 2 Foaming agent (ADC) 1g / m 2 and filler (calcium carbonate) 20g / m 2 .

[0056] Next layer: Total amount 160g / m 2 Among them, plasticizer (DMP) 50g / m 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.2g / m 2 .

[0057] Base fabric layer: Three-shuttle warp-knitted fabric, 320g / m² 2 .

[0058] Example 4 A white artificial leather comprises a base fabric layer and an adhesive layer, a foam layer, and a surface layer, sequentially stacked in a direction opposite to the surface of the base fabric layer; the materials and amounts of each layer are as follows: Surface layer: Total amount 250g / m 2 Among them, plasticizer (DMP) 75g / m 2 PVC emulsifier 100g / m 2 Stabilizer (lead stearate) 1.5g / m 2 Antioxidant (1076) 1.39 g / m 2 Tris(dodecyl) phosphite 1.11 g / m 2 UV absorber (2-(2'-hydroxy-3',5'-dicumylphenyl)-benzotriazole) 1g / m 2 Foaming agent (ADC) 0.5g / m³ 2 30g / m³ of filler (calcium carbonate) 2 ; and antiamine agent (barium perchlorate 1.67 g / m³) 2 Barium hypochlorite 0.83 g / m 2 ).

[0059] Foaming layer: Total amount 315g / m 2 Among them, the plasticizer (DMP) is 85g / m³. 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.3g / m 2 Foaming agent (ADC) 1g / m 2 and filler (calcium carbonate) 20g / m 2 .

[0060] Next layer: Total amount 160g / m 2 Among them, plasticizer (DMP) 50g / m 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.2g / m 2 .

[0061] Base fabric layer: Three-shuttle warp-knitted fabric, 320g / m² 2 .

[0062] Example 5 A white artificial leather comprises a base fabric layer and an adhesive layer, a foam layer, and a surface layer, sequentially stacked in a direction opposite to the surface of the base fabric layer; the materials and amounts of each layer are as follows: Surface layer: Total amount 250g / m 2 Among them, plasticizer (DMP) 75g / m 2 PVC emulsifier 100g / m 2 Stabilizer (lead stearate) 1.5g / m 2 Antioxidant (1076) 1.39 g / m 2 Tris(dodecyl) phosphite 1.11 g / m 2 UV absorber (2-(2'-hydroxy-3',5'-dicumylphenyl)-benzotriazole) 1g / m 2 Foaming agent (ADC) 0.5g / m³ 2 30g / m³ of filler (calcium carbonate) 2 ; and antiamine agent (barium perchlorate 1.92 g / m³) 2 Barium hypochlorite 0.58 g / m 2 ).

[0063] Foaming layer: Total amount 315g / m 2 Among them, the plasticizer (DMP) is 85g / m³. 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.3g / m 2 Foaming agent (ADC) 1g / m 2 and filler (calcium carbonate) 20g / m 2 .

[0064] Next layer: Total amount 160g / m 2 Among them, plasticizer (DMP) 50g / m 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.2g / m 2 .

[0065] Base fabric layer: Three-shuttle warp-knitted fabric, 320g / m² 2 .

[0066] Example 6 A white artificial leather comprises a base fabric layer and an adhesive layer, a foam layer, and a surface layer, sequentially stacked in a direction opposite to the surface of the base fabric layer; the materials and amounts of each layer are as follows: Surface layer: Total amount 250g / m 2 Among them, plasticizer (DMP) 75g / m 2 PVC emulsifier 100g / m 2 Stabilizer (lead stearate) 1.5g / m 2 Antioxidant (1076) 1.39 g / m 2 Tris(dodecyl) phosphite 1.11 g / m 2 UV absorber (2-(2'-hydroxy-3',5'-dicumylphenyl)-benzotriazole) 1g / m 2 Foaming agent (ADC) 0.5g / m³ 2 30g / m³ of filler (calcium carbonate) 2 ; and antiamine agent (barium perchlorate 4.17 g / m³) 2 Barium hypochlorite 0.83 g / m 2 ).

[0067] Foaming layer: Total amount 315g / m 2 Among them, the plasticizer (DMP) is 85g / m³. 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.3g / m 2 Foaming agent (ADC) 1g / m 2 and filler (calcium carbonate) 20g / m 2 .

[0068] Next layer: Total amount 160g / m 2 Among them, plasticizer (DMP) 50g / m 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.2g / m 2 .

[0069] Base fabric layer: Three-shuttle warp-knitted fabric, 320g / m² 2 .

[0070] Example 7 A white artificial leather comprises a base fabric layer and an adhesive layer, a foam layer, and a surface layer, sequentially stacked in a direction opposite to the surface of the base fabric layer; the materials and amounts of each layer are as follows: Surface layer: Total amount 250g / m 2 Among them, plasticizer (DMP) 75g / m 2PVC emulsifier 100g / m 2 Stabilizer (lead stearate) 1.5g / m 2 Antioxidant (1076) 1.39 g / m 2 Tris(dodecyl) phosphite 1.11 g / m 2 UV absorber (2-(2'-hydroxy-3',5'-dicumylphenyl)-benzotriazole) 1g / m 2 Foaming agent (ADC) 0.5g / m³ 2 30g / m³ of filler (calcium carbonate) 2 ; and antiamine agent (barium perchlorate 5.68 g / m³) 2 Barium hypochlorite 0.57 g / m 2 ).

[0071] Foaming layer: Total amount 315g / m 2 Among them, the plasticizer (DMP) is 85g / m³. 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.3g / m 2 Foaming agent (ADC) 1g / m 2 and filler (calcium carbonate) 20g / m 2 .

[0072] Next layer: Total amount 160g / m 2 Among them, plasticizer (DMP) 50g / m 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.2g / m 2 .

[0073] Base fabric layer: Three-shuttle warp-knitted fabric, 320g / m² 2 .

[0074] Example 8 A white artificial leather comprises a base fabric layer and an adhesive layer, a foam layer, and a surface layer, sequentially stacked in a direction opposite to the surface of the base fabric layer; the materials and amounts of each layer are as follows: Surface layer: Total amount 250g / m 2 Among them, plasticizer (DMP) 75g / m 2 PVC emulsifier 100g / m 2 Stabilizer (lead stearate) 1.5g / m 2 Antioxidant (1076) 0.227 g / m2 And tri(dodecyl) phosphite 0.023 g / m 2 UV absorber (2-(2'-hydroxy-3',5'-dicumylphenyl)-benzotriazole) 1g / m 2 Foaming agent (ADC) 0.5g / m³ 2 30g / m³ of filler (calcium carbonate) 2 ; and antiamine agent (barium perchlorate 1.92 g / m³) 2 Barium hypochlorite 0.58 g / m 2 ).

[0075] Foaming layer: Total amount 315g / m 2 Among them, the plasticizer (DMP) is 85g / m³. 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.3g / m 2 Foaming agent (ADC) 1g / m 2 and filler (calcium carbonate) 20g / m 2 .

[0076] Next layer: Total amount 160g / m 2 Among them, plasticizer (DMP) 50g / m 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.2g / m 2 .

[0077] Base fabric layer: Three-shuttle warp-knitted fabric, 320g / m² 2 .

[0078] Example 9 A white artificial leather comprises a base fabric layer and an adhesive layer, a foam layer, and a surface layer, sequentially stacked in a direction opposite to the surface of the base fabric layer; the materials and amounts of each layer are as follows: Surface layer: Total amount 250g / m 2 Among them, plasticizer (DMP) 75g / m 2 PVC emulsifier 100g / m 2 Stabilizer (lead stearate) 1.5g / m 2 Antioxidant (1076) 3.84 g / m 2 And tri(dodecyl) phosphite 1.15 g / m 2UV absorber (2-(2'-hydroxy-3',5'-dicumylphenyl)-benzotriazole) 1g / m 2 Foaming agent (ADC) 0.5g / m³ 2 30g / m³ of filler (calcium carbonate) 2 ; and antiamine agent (barium perchlorate 1.92 g / m³) 2 Barium hypochlorite 0.58 g / m 2 ).

[0079] Foaming layer: Total amount 315g / m 2 Among them, the plasticizer (DMP) is 85g / m³. 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.3g / m 2 Foaming agent (ADC) 1g / m 2 and filler (calcium carbonate) 20g / m 2 .

[0080] Next layer: Total amount 160g / m 2 Among them, plasticizer (DMP) 50g / m 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.2g / m 2 .

[0081] Base fabric layer: Three-shuttle warp-knitted fabric, 320g / m² 2 .

[0082] Example 10 A white artificial leather comprises a base fabric layer and an adhesive layer, a foam layer, and a surface layer, sequentially stacked in a direction opposite to the surface of the base fabric layer; the materials and amounts of each layer are as follows: Surface layer: Total amount 250g / m 2 Among them, plasticizer (DMP) 75g / m 2 PVC emulsifier 100g / m 2 Stabilizer (lead stearate) 1.5g / m 2 Antioxidant (1076) 5g / m 2 And tri(dodecyl) phosphite 2.5 g / m 2 UV absorber (2-(2'-hydroxy-3',5'-dicumylphenyl)-benzotriazole) 1g / m 2 Foaming agent (ADC) 0.5g / m³ 230g / m³ of filler (calcium carbonate) 2 ; and antiamine agent (barium perchlorate 1.92 g / m³) 2 Barium hypochlorite 0.58 g / m 2 ).

[0083] Foaming layer: Total amount 315g / m 2 Among them, the plasticizer (DMP) is 85g / m³. 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.3g / m 2 Foaming agent (ADC) 1g / m 2 and filler (calcium carbonate) 20g / m 2 .

[0084] Next layer: Total amount 160g / m 2 Among them, plasticizer (DMP) 50g / m 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.2g / m 2 .

[0085] Base fabric layer: Three-shuttle warp-knitted fabric, 320g / m² 2 .

[0086] Example 11 A white artificial leather comprises a base fabric layer and an adhesive layer, a foam layer, and a surface layer, sequentially stacked in a direction opposite to the surface of the base fabric layer; the materials and amounts of each layer are as follows: Surface layer: Total amount 250g / m 2 Among them, plasticizer (DMP) 75g / m 2 PVC emulsifier 100g / m 2 Stabilizer (lead stearate) 1.5g / m 2 Antioxidant (1076) 6.25g / m 2 Tri(dodecyl) phosphite 6.25 g / m 2 UV absorber (2-(2'-hydroxy-3',5'-dicumylphenyl)-benzotriazole) 1g / m 2 Foaming agent (ADC) 0.5g / m³ 2 30g / m³ of filler (calcium carbonate) 2 ; and antiamine agent (barium perchlorate 1.92 g / m³) 2 Barium hypochlorite 0.58 g / m2 ).

[0087] Foaming layer: Total amount 315g / m 2 Among them, the plasticizer (DMP) is 85g / m³. 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.3g / m 2 Foaming agent (ADC) 1g / m 2 and filler (calcium carbonate) 20g / m 2 .

[0088] Next layer: Total amount 160g / m 2 Among them, plasticizer (DMP) 50g / m 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.2g / m 2 .

[0089] Base fabric layer: Three-shuttle warp-knitted fabric, 320g / m² 2 .

[0090] Example 12 A white artificial leather comprises a base fabric layer and an adhesive layer, a foam layer, a surface layer, and a surface treatment layer, sequentially stacked in a direction opposite to the surface of the base fabric layer; the materials and amounts of each layer are as follows: Surface treatment layer : Polyacrylic resin 20g / m 2 Polyester polyurethane resin 15g / m 2 .

[0091] Surface layer: Total amount 250g / m 2 Among them, plasticizer (DMP) 75g / m 2 PVC emulsifier 100g / m 2 Stabilizer (lead stearate) 1.5g / m 2 Antioxidant (1076) 1.39 g / m 2 Tris(dodecyl) phosphite 1.11 g / m 2 UV absorber (2-(2'-hydroxy-3',5'-dicumylphenyl)-benzotriazole) 1g / m 2 Foaming agent (ADC) 0.5g / m³ 2 30g / m³ of filler (calcium carbonate) 2 ; and antiamine agent (barium perchlorate 1.92 g / m³)2 Barium hypochlorite 0.58 g / m 2 ).

[0092] Foaming layer: Total amount 315g / m 2 Among them, the plasticizer (DMP) is 85g / m³. 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.3g / m 2 Foaming agent (ADC) 1g / m 2 and filler (calcium carbonate) 20g / m 2 .

[0093] Next layer: Total amount 160g / m 2 Among them, plasticizer (DMP) 50g / m 2 PVC emulsifier 100g / m 2 Stabilizer (calcium-zinc stabilizer) 2g / m 2 Antioxidant (1076) 0.2g / m 2 .

[0094] Base fabric layer: Three-shuttle warp-knitted fabric, 320g / m² 2 .

[0095] Comparative Example 1 A white artificial leather, identical to Example 12 except that no antiamine agent is added to the surface layer.

[0096] Comparative Example 2 A white artificial leather, except that the surface layer contains only perchlorate as an antiamine agent, is otherwise identical to that in Example 12.

[0097] Comparative Example 3 A type of white artificial leather, differing only in the amount of antiamine agent in the surface layer (barium perchlorate 1.13 g / m²). 2 Barium hypochlorite 1.37 g / m 2 Everything else is the same as in Example 12.

[0098] Comparative Example 4 A white artificial leather is identical to Example 12 except that no antiamine agent is added to the surface layer, but the adhering layer contains a perchlorate antiamine agent.

[0099] Comparative Example 5 A white artificial leather, identical to Example 12 except that no antiamine agent and auxiliary antioxidant are added to the surface layer.

[0100] The artificial leathers of Examples 1-12 and Comparative Examples 1-4 were subjected to anti-yellowing and flame-retardant tests under the same conditions (test conditions: room temperature storage time T, which can be 1 month, 3 months, 9 months, or 1 year, etc.). (Color parameter ΔE of 1 or below is considered to meet the standard.) The test results are shown in Table 1.

[0101] Table 1

[0102] As shown in Table 1, compared to the comparative examples, the artificial leather provided in this application not only meets the requirements for flame retardancy but also has better anti-yellowing properties, and can ensure that it does not yellow over a long period of use, thus improving the user experience and the service life of the leather material. In Example 12, the anti-yellowing effect is the best due to the combined effect of the specific amount of antiamine agent, antioxidant, and surface treatment layer.

[0103] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A type of artificial leather, comprising a base fabric layer and an adhesive layer, a foam layer, and a surface layer sequentially stacked in a direction opposite to the surface of the base fabric layer, characterized in that, The surface layer contains an antiamine agent, which includes perchlorate and hypochlorite, wherein the weight of hypochlorite is less than or equal to 30% of the weight of perchlorate, and the weight of the antiamine agent is 0.01 to 2.5% of the total weight of the surface layer.

2. The artificial leather as described in claim 1, characterized in that, The antiamine agent has a unit area weight of 0.1~5 g / m². 2 .

3. The artificial leather as described in claim 1, characterized in that, The perchlorate is selected from at least one of sodium perchlorate, calcium perchlorate, magnesium perchlorate, and barium perchlorate, and the hypochlorite is selected from at least one of sodium hypochlorite, calcium hypochlorite, magnesium hypochlorite, and barium hypochlorite.

4. The artificial leather as described in claim 1, characterized in that, The surface layer also includes antioxidants, the weight of which is 0.1-5% of the total weight of the surface layer. The antioxidants include hindered phenolic primary antioxidants and phosphite secondary antioxidants, the weight of which is less than or equal to the weight of which is hindered phenolic primary antioxidant.

5. The artificial leather as described in claim 4, characterized in that, The hindered phenolic primary antioxidant is selected from at least one of β-(4-hydroxy-3,5-di-tert-butylphenyl)propionate n-octadecyl ester and pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]; and / or The phosphite-based auxiliary antioxidant is selected from at least one of distearate pentaerythritol diphosphite, phenyl diisodecyl phosphite, and tri(dodecyl) phosphite.

6. The artificial leather as described in claim 1 or 4, characterized in that, The surface layer further includes a stabilizer, the stabilizer being 0.5-5% of the total weight of the surface layer, and / or the stabilizer being selected from at least one of lead stearate, zinc stearate, and barium stearate.

7. The artificial leather according to any one of claims 1-6, characterized in that, The surface layer also includes a resin, which is selected from polyvinyl chloride resin or polyurethane resin.

8. The artificial leather according to any one of claims 1-6, characterized in that, The artificial leather also includes a surface treatment layer located on the side of the surface layer away from the foam layer, and the material of the surface treatment layer includes at least one of polycarbonate polyurethane resin, polyacrylic resin and polyester polyurethane resin.

9. The artificial leather as described in claim 8, characterized in that, The surface treatment layer and / or the foaming layer contain the antiamine agent.

10. A car seat, comprising a seat body and artificial leather disposed on the surface of the seat body, characterized in that, The artificial leather is the artificial leather as described in any one of claims 1-9.

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