Novel PVC sheet stone plastic floor

Abstract

The utility model discloses a novel PVC sheet stone plastic floor, belongs to the technical field of composite floors, and aims to solve the problems that LVT dynamic size stability is insufficient and noise is generated. According to the technical scheme, at least one flocculent glass fiber layer is arranged in a floor body, the floor body comprises a sol printing layer located above the flocculent glass fiber layer and a base layer located below the flocculent glass fiber layer, a wear-resisting layer is fixedly connected to the upper portion of the sol printing layer, and a UV light curing layer is fixedly connected to the upper portion of the wear-resisting layer. The end face of the side, away from the flocculent glass fiber, of the base layer is fixedly connected with the foaming layer, the flocculent glass fiber and the foaming layer are added into LVT, the dynamic size stability problem of the LVT is effectively solved, the situation that due to the thermal expansion characteristic of materials, the size is increased along with temperature rising is reduced, the risk that the edge of the PVC sheet stone-plastic floor is warped is reduced, and the PVC sheet stone-plastic floor is good in stability. The attractiveness and the service life of the PVC sheet stone-plastic floor are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite floors, and more specifically to a novel PVC sheet stone plastic floor. Background Art

[0002] LVT is a semi-rigid stone-plastic floor with PVC (polyvinyl chloride) as the main base material. Its main ingredients include PVC resin, natural stone powder filler, plasticizer and PVC heat stabilizer. It has excellent wear resistance, waterproofness and fire resistance, and is widely used in homes and commercial places.

[0003] Structurally, LVT adopts a multi-layer composite design, which includes, from top to bottom: a light-cured UV layer, which is used to provide additional wear resistance and stain resistance; a transparent PVC wear-resistant layer, which enhances the durability of the surface; a printing layer, which gives the floor the desired pattern and color; a sol layer, which is responsible for bonding the layers; and a base layer, which provides dimensional stability and load-bearing capacity.

[0004] In the traditional LVT processing process, different layers of materials are stacked together and fused into one through hot pressing. They are then cured in a constant temperature and humidity environment to stabilize their size. A punch press with a die cutter is then used to punch the fused materials into the appropriate size, and the edges are trimmed and chamfered before being packaged and sold.

[0005] However, the dynamic dimensional stability of traditional LVT is insufficient. Due to the limitation of processing technology, only glass fiber mesh cloth can be used as reinforcement material, or no reinforcement material is used. As a result, the dimensional stability of the product is greatly affected by temperature changes, causing thermal expansion and contraction. In summer, the product is prone to edge warping; in winter, the gaps between the floors may become too large, which not only affects the appearance, but also generates noise, thereby reducing the actual service life of the product and user experience. Therefore, a new solution is needed to solve the problem of insufficient dynamic dimensional stability and noise generation of LVT. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a new type of PVC sheet stone plastic floor, which can improve the dynamic dimensional stability of LVT and achieve the purpose of sound absorption and noise reduction through structural settings.

[0007] The above technical purpose of the utility model is achieved through the following technical solutions: a new type of PVC sheet stone plastic floor, including a floor body, wherein at least one flocculent glass fiber layer is provided in the floor body, the floor body includes a sol-printed layer located above the flocculent glass fiber layer and a base layer located below the flocculent glass fiber layer, a PVC wear-resistant layer is fixedly connected above the sol-printed layer, a UV light-curing layer is fixedly connected above the PVC wear-resistant layer, and a foaming layer is fixedly connected to the end surface of the base layer away from the flocculent glass fiber.

[0008] The utility model is further configured as follows: the flocculent glass fiber layer comprises a plurality of glass fiber filaments, the diameter of the glass fiber filaments is 5-20 μm, and the length of the glass fiber filaments is 0.5-2.0 cm.

[0009] The utility model is further configured as follows: the flocculent glass fiber layer also includes an adhesive, and the content of the adhesive is 20-30%.

[0010] The utility model is further configured as follows: the air permeability of the flocculent glass fiber layer is greater than 6000 L / (m2·s).

[0011] The utility model is further configured as follows: the thickness of the foaming layer is 1.0-2.0 mm, and the foaming layer is a closed-cell structure.

[0012] The utility model is further configured as follows: the foaming ratio of the foaming layer is 2.0-4.0.

[0013] The utility model is further configured as follows: the total thickness of the floor body is 2.5-4.5 mm.

[0014] In summary, the utility model has the following beneficial effects:

[0015] 1. By adding flocculent glass fiber to LVT, the problem of dynamic dimensional stability of LVT is effectively solved, the thermal expansion characteristics of the material itself reduce the size growth with the increase of temperature, the risk of edge warping of PVC sheet stone plastic floor is reduced, and the beauty and service life of PVC sheet stone plastic floor are improved.

[0016] 2. A foaming layer is added to the bottom of the base layer, which not only makes the product have good sound absorption and noise reduction functions, but also has cushioning properties, bringing a comfortable feeling to the user. It can also effectively protect people from falling and reduce the possibility of injury, providing users with a better use experience. It also helps the PVC sheet stone plastic floor to evenly distribute the force, further improving the overall structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is an enlarged view of flocculent glass fiber.

[0019] In the figure: 1. UV light curing layer; 2. wear-resistant layer; 3. sol printing layer; 4. flocculent glass fiber layer; 5. base layer; 6. foaming layer. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0021] Example:

[0022] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] like Figure 1 As shown, the new PVC sheet stone plastic floor includes a floor body with a total thickness of 2.5-4.5 mm. The layers of the floor body from top to bottom are: UV light curing layer 1, transparent PVC wear-resistant layer 2, sol printing layer 3, flocculent glass fiber layer 4, base layer 5 and foaming layer 6. The layers are tightly combined to form a solid whole, which not only ensures the stability of the floor body, but also improves the deformation resistance of the floor body.

[0024] like Figure 1 and Figure 2As shown, the flocculent glass fiber layer 4 includes a plurality of glass fiber filaments and an adhesive, wherein the diameter of the glass fiber filaments is 5-20 μm, the length of the glass fiber filaments is 0.5-2.0 cm, the adhesive is an acrylic adhesive, the adhesive content is 20-30%, and the transverse and longitudinal tensile strengths are 60`130N / 50mm. The glass fibers are bonded to each other by the adhesive and are evenly distributed in a width of 2 meters by a hydroentanglement method. The air permeability of the flocculent glass fiber layer 4 is greater than 6000L / (m2·s). The good air permeability enables the floor body to better adapt to changes in temperature and humidity in the environment, reduce the expansion or contraction of the material, and thus reduce the damage caused by environmental changes. The dimensional fluctuation caused by dimensional fluctuations can also effectively mitigate the impact of objects falling to the ground, thereby reducing the impact sound and making the floor body generate less noise during use. The flocculent glass fiber layer 4 provides more uniform reinforcement effect compared to the glass fiber mesh cloth. The glass fiber filaments in the flocculent glass fiber layer 4 exist in the floor in a dispersed form, which can uniformly enhance the overall structure of the floor, improve wear resistance and stability, and do not affect the appearance of the floor surface. Due to the dispersibility of the glass fiber filaments, it can be more easily mixed with other materials, which is suitable for uniform distribution in the automated production process. Moreover, due to the light weight and recyclability of the flocculent glass fiber layer 4, it has less impact on the environment.

[0025] like Figure 1As shown, the thickness of the foaming layer 6 is 1.0-2.0mm, the foaming layer 6 is a closed-cell structure, the cells are uniform, the foaming ratio of the foaming layer 6 is 2.0-4.0, the formula adopts 30-45% PVC paste resin, 30-45% plasticizer DOTP, 15-40% stone powder and 0.2-1.0% liquid stabilizer, the amount of the foaming agent is 0.5-2.0%, adding the foaming layer 6 improves the dynamic dimensional stability of the floor body, makes the internal structure more compact, and the bonding force between molecules is stronger, which helps to reduce the friction and vibration inside the floor body, and can also better resist the external force, reduce the deformation and displacement caused by the external force, thereby reducing the noise. In addition, it is easier to achieve precise splicing during the installation process, reduce the gaps and unevenness caused by improper installation, and further reduce the noise generated when walking on the floor body. The addition of the foaming layer 6 reduces the overall density of the floor body. This lightweight structure reduces the material The deformation of the material due to its own weight or external force will not be affected by the foam layer 6 located at the bottom of the floor, so the surface strength is not affected. Thus, while maintaining the appearance and surface texture, the overall structural stability is improved. The bubbles in the foam layer 6 can evenly distribute the force. When the floor is subjected to local pressure, the foam layer 6 can effectively disperse these forces and reduce the local deformation caused by pressure concentration. The uniform pressure distribution helps the floor to maintain the stability of shape and size during long-term use. The foam layer 6 also has certain heat insulation and moisture insulation functions. In an environment with temperature fluctuations or humidity changes, the foam layer 6 can help the floor maintain its original size and shape and reduce the impact of thermal expansion or contraction. The presence of the foam layer 6 can also improve the elasticity of the floor, so that it can rebound better when subjected to gravity or impact, reducing the possibility of permanent deformation. At the same time, the compression strength of the foam layer 6 also helps the floor to remain stable when subjected to heavy loads and avoid compression deformation.

[0026] In the production process, the floor body is first made into a multi-layer composite PVC coil and then sliced. Conventional LVT punching methods cannot achieve qualified sizes, straightness and edge straightness, so CNC numerical control cutting is adopted. The equipment achieves excellent control accuracy through high-precision hardware and professional GPU algorithm control software.

[0027] The dynamic dimensional stability of the product is an important factor in evaluating floor materials. The dimensional expansion rate of the new PVC sheet stone plastic floor is only 0.02% when the temperature rises from 23℃ to 45℃, which is much lower than the 0.15% of ordinary LVT floor. The new PVC sheet stone plastic floor is not easily deformed by hot and cold temperature changes, which solves the problem of edge warping in high temperatures in summer and ensures the flatness, beauty and service life of the floor.

[0028] The new PVC sheet stone plastic floor also has a good mute effect. According to the test method of ISO10140-3:2010, its mute effect reaches 16dB, which is much higher than the 2dB of ordinary LVT floor. Such mute performance can significantly reduce the noise generated when walking and create a more quiet and comfortable living environment.

[0029] In terms of vibration absorption, the new PVC sheet stone plastic floor also has advantages. According to the EN-14808-2005 test method, its shock absorption effect reaches 10%, which is five times that of ordinary LVT floor. It can not only protect the elderly and children at home from falling injuries, but also improve the comfort and safety during exercise. Therefore, the new PVC sheet stone plastic floor is superior to ordinary LVT floor in dimensional stability, quiet effect and vibration absorption. It is a high-performance, high-safety and high-comfort floor material.

[0030] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "upper" and "lower" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0031] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A new type of PVC sheet stone plastic floor, including a floor body, characterized in that: At least one flocculent glass fiber layer (4) is provided in the floor body, and the floor body comprises a sol-printed layer (3) located above the flocculent glass fiber layer (4) and a base layer (5) located below the flocculent glass fiber layer (4); a wear-resistant layer (2) is fixedly connected above the sol-printed layer (3); a UV light-curing layer (1) is fixedly connected above the wear-resistant layer (2); and a foaming layer (6) is fixedly connected to the end surface of the base layer (5) away from the flocculent glass fiber.

2. The novel PVC sheet stone plastic floor according to claim 1 is characterized by: The flocculent glass fiber layer (4) comprises a plurality of glass fiber filaments, the diameter of the glass fiber filaments is 5-20 μm, and the length of the glass fiber filaments is 0.5-2.0 cm.

3. The novel PVC sheet stone plastic floor according to claim 2 is characterized by: The flocculent glass fiber layer (4) further comprises a binder.

4. The novel PVC sheet stone plastic floor according to claim 3 is characterized by: The air permeability of the flocculent glass fiber layer (4) is greater than 6000 L / (m2·s).

5. The novel PVC sheet stone plastic floor according to claim 1 is characterized by: The thickness of the foaming layer (6) is 1.0-2.0 mm, and the foaming layer (6) is a closed-cell structure.

6. The novel PVC sheet stone plastic floor according to claim 5 is characterized by: The foaming ratio of the foaming layer (6) is 2.0-4.

0.

7. The novel PVC sheet stone plastic floor according to claim 1 is characterized by: The total thickness of the floor body is 2.5-4.5 mm.

Images