KR20130104391A - Flooring material using poly lactic acid resin - Google Patents

Abstract

PURPOSE: A flooring material using a PLA resin is provided to prevent uneven parts and construction marks of the bottom from being spread by including a single plate layer and prevent environmental contamination by using the PLA resin which is an environmentally friendly material. CONSTITUTION: A flooring material using a PLA resin comprises a transparent layer (20), a printing layer (30), a base layer (40), a single plate layer (50), and a base material layer (60). The transparent layer, a base layer, and a printing layer are comprised of the PLA resin. An adhesive are coated on the bottom surface of the base layer, and the single plate layer is attached to the adhesive. A surface processing layer (12) is included on the upper surface of the transparent layer, and the base material layer maintaining balance is included on the bottom surface of the single plate layer. A Urethane acrylate ultraviolet hardening agent is coated on the surface processing layer.

Description

      Flooring material using PLA resin {flooring material using poly lactic acid resin}

The present invention relates to a flooring using PLA, and more particularly to a flooring using a PLA resin to prevent environmental pollution, to feel intimacy and easy molding using PLA resin which is an environmentally friendly material.

Conventionally, the flooring material which is constructed indoors of various building structures is provided with a printing layer and a transparent layer on the upper surface of the base layer made of a non-foamed or foamed layer, and is provided with a back layer which maintains a balance on the bottom of the base layer. It is made of PVC (PolyVinyl Chloride, polyvinyl chloride) and the like.

Here, the printing layer of the conventional flooring material is a gravure printing directly to the desired pattern by integrating the glass paper or given a print pattern using a transfer paper, when printing oil-based or water-based ink is used, the oil-based ink is a volatile solvent compared to the water-based ink Due to its poor working environment, it is widely used because of its excellent printability and convenient drying after printing.

By the way, such conventional flooring, in particular PVC flooring has the advantages of low cost and easy construction, there is a problem of polluting the environment during disposal.

That is, the flooring material disposed of after use is disposed of by landfilling or incineration. The landfilling method has a problem that it takes too long to completely decompose the flooring, but incineration generates dioxin, which is harmful to the human body, and various contaminants. This air, of course, pollutes the surrounding environment, causing secondary environmental pollution that adversely affects the copper and plants that grow there.

In addition, the conventional flooring has a problem in that when there is foreign matter or irregularities on the floor of the construction, the marks of the construction adhesive are transferred to the surface of the flooring, resulting in poor appearance and easy tearing.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to provide a flooring using a PLA resin that can prevent environmental pollution due to disposal using PLA resin, which is an environmentally friendly material.

Another object of the present invention is to provide a flooring using a PLA resin that is easy to mold production, having a base layer and a single plate layer so that unevenness and construction marks of the construction floor is not transferred to the upper surface of the flooring material, and can be used for a long time. There is.

The present invention is a flooring that is installed on the interior floor of a building structure, comprising a transparent layer, a printing layer, and a base layer from the top, which are molded of PLA resin, the adhesive is applied to the bottom of the base layer, the single-layer layer on the adhesive This is achieved by having the technical characteristics to be bonded.

In addition, the present invention has a technical feature of having a surface treatment layer on the upper surface of the transparent layer, and a base layer for maintaining a balance on the bottom surface of the end plate layer.

The present invention has the effect of preventing the environmental pollution in the first disposal of the flooring material using PLA resin, which is an environmentally friendly material.

Secondly, the bottom material of the present invention has a base layer and a single plate layer adhered to the base layer, so that it is possible to use for a long period of time without transiting the construction mark as well as the unevenness of the construction floor.

Thirdly, the flooring material of the present invention is a flooring material which is easy to manufacture and feels intimacy without harmful components being discharged during fabrication.

1 is an exploded cross-sectional view of the flooring according to the invention,
2 is a cross-sectional view of the flooring according to the invention,
Figure 3 is an enlarged view of the main portion of the flooring according to the invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded cross-sectional view of the flooring according to the present invention, Figure 2 is a cross-sectional view of the flooring according to the present invention, Figure 3 shows an enlarged view of the main portion of the flooring according to the present invention.

In the drawings, the flooring of the present invention is a flooring material having a non-foamed layer, that is, it is constructed on the indoor floor of a building for commercial use, or may be used for other purposes.

The flooring material 10 of the present invention is provided on the transparent layer 20, the print layer 30, the base layer 40 and the end plate layer 50 adhered to the base layer 40 and the bottom surface of the end plate layer from the top. It consists of the base material layer 60, the surface treatment layer 12 is apply | coated on the upper surface of the said transparent layer 20.

The transparent layer 20, the print layer 30 and the base layer 40 is formed of a PLA resin, the base layer 40 is based on a non-foamed layer, the base plate layer 50 is made of wood or PLA It can be molded into a resin.

In the present invention, the PLA (Polylactic acid) resin constituting the transparent layer 20, the print layer 30, the base layer 40 is a thermoplastic polyester of lactide or lactic acid, produced by fermenting starch extracted from corn, potatoes, etc. It can be prepared by polymerizing lactic acid.

The PLA resin can be regenerated as much as possible to solve the problems caused by exhaustion of petroleum resources, and even in the process of disposal, the emission of environmentally harmful substances is much lower than other resins such as vinyl chloride, and the decomposition rate is also fast.

The PLA resin may be classified into a crystalline PLA (c-PLA) resin and an amorphous PLA (a-PLA) resin, in the case of the crystalline PLA resin plasticizers may flow to the surface of the sheet may occur, so the amorphous PLA in the present invention Resin is used.

In the case of using an amorphous PLA resin, it is preferable to use an 100% amorphous PLA resin, but if necessary, a PLA resin in which crystalline and amorphous coexists may be used.

The PLA resin may include an acrylic copolymer, calcium carbonate, silica gel, and titanium oxide as a non-phthalate plasticizer or a filler to reinforce melt strength when molded.

The plasticizer is an additive used to exhibit physical properties suitable for use, such as processability and flexibility according to resin molding. In particular, in the present invention, a nonphthalate plasticizer is used that is not harmful to the human body.

In addition, the transparent layer, the base layer, and the base layer constituting the present invention may be added to the PLA resin, at least one or more lubricants, chain extenders, hydrolysis agents and the like when molding.

In this case, the lubricant is hydrocarbon, polyethylene, silicone fluid, as well as environmentally friendly higher fatty acids, but one example is stearic acid, a higher fatty acid having 18 carbon atoms.

Hydrolysis agents may be used carbodiimide or oxane sleepy or polycarbodiimide.

That is, the transparent layer 20 and the base layer 40 of the present invention is used 5 to 70 parts by weight of a nonphthalate plasticizer with respect to 100 parts by weight of PLA resin, the filler is calcium carbonate or titanium oxide or acrylic copolymer is PLA resin 100 It is preferable to mix in a ratio of 1-20 weight part with respect to a weight part, and 0.01-5 weight part of lubricant is used with respect to 100 weight part of PLA resin.

In addition, the chain extender and the hydrolysis agent may optionally be used 0.01 to 10 parts by weight based on 100 parts by weight of the PLA resin.

Preferably, the base layer 40 is 1 ~ 5mm will be suitable, the printing layer 30, the transparent layer 20, the surface treatment layer 12 is preferably made of 0.01 to 3mm, the single plate layer ( 50) is made of 0.5 to 3 mm.

The surface treatment layer 12 may be a urethane acrylate-based UV curing agent, the end plate layer 50 is produced by processing PLA resin or wood, etc., the base layer 40 and the end plate layer 50 As the adhesive layer 202 to be bonded, PLA resin-based or thermosetting melamine resin may be used, and an application amount of 50 to 200 g / m 2 is preferable.

On the other hand, the present invention may have a base layer 60 to maintain a balance on the bottom of the end plate layer 50, this base layer is also configured to be molded and pressed with PLA resin.

Basically, this invention is a structure which has the transparent layer 20, the printing layer 30, the base layer 40, the contact bonding layer 14, and the end plate layer 50 from the top.

In addition, the present invention has a surface treatment layer 12, a transparent layer 20, a printing layer 30, a base layer 40, an adhesive layer 14, a single plate layer 50 and a base layer 60 from the top.

Example 1

Printed on the upper surface with 0.1 mm thick transparent layer 20 and gravure printing, including 12 parts by weight of non-phthalate plasticizer, 0.02 parts by weight of lubricant, 0.02 parts by weight of chain extender and 0.02 parts by weight of hydrolysis agent, based on 100 parts by weight of PLA resin. Compress the base layer 40 having a layer, wherein the base layer 40 is 30 parts by weight of non-phthalate plasticizer, 3 parts by weight of calcium carbonate, 0.01 part by weight of lubricant, 0.01 weight of chain extender based on 100 parts by weight. Part and 0.02 part by weight of the hydrolysis agent, and the thickness was 2 mm.

150g / m 2 of PLA resin-based adhesive was applied to the bottom of the base layer 40, and a single plate layer 60 having a thickness of 3 mm made of wood was attached thereto.

Example 2

Printed on the upper surface with a 0.1 mm thick transparent layer 20 and gravure printing comprising 15 parts by weight of a non-phthalate plasticizer, 0.02 parts by weight of lubricant, 0.02 parts by weight of a chain extender, and 0.02 parts by weight of a hydrolysis agent, based on 100 parts by weight of PLA resin. Compressed base layer 40 having a layer 30, the base layer 40 is 30 parts by weight of non-phthalate plasticizer, 5 parts by weight of calcium carbonate, 0.01 parts by weight of lubricant, 0.01 part by weight of the chain extender and 0.02 part by weight of the hydrolysis agent were included, and the thickness was 2 mm.

150g / m 2 of PLA resin-based adhesive was applied to the bottom of the base layer 40, and a single plate layer 60 having a thickness of 2.5 mm was made of wood.

The urethane acrylate-based UV curing agent is applied to the upper surface of the transparent layer 20 to provide a surface treatment layer 14, and is formed by pressing the base layer 60 having a thickness of 0.5 mm on the bottom of the end plate layer 50, The base material layer 60 contains 20 parts by weight of sweeping agent, 3 parts by weight of calcium carbonate, 0.01 part by weight of lubricant, 0.01 part by weight of chain extender, and 0.02 part by weight of hydrolysis agent.

10: flooring 20: transparent layer
30: printed layer 40: base layer
50: single layer

Claims (9)

Flooring material installed on the interior floor of building structures,
A transparent layer, a printing layer, and a base layer are provided from the top, and they are formed of a PLA resin, and an adhesive is applied to the bottom of the base layer, and a flooring material using the PLA resin, wherein the end plate layer is bonded to the adhesive. [Claim 2] The PLA resin according to claim 1, wherein at least one non-phthalate plasticizer, filler, lubricant, chain extender, and hydrolysis agent is added to the PLA resin constituting the transparent layer, the base layer, and the print layer. Flooring. According to claim 1, wherein the transparent layer and the base layer is 5 to 70 parts by weight of the phthalate plasticizer, 1 to 20 parts by weight of the filler, 0.01 to 5 parts by weight of lubricant and 0.01 to 5 parts by weight of the chain extender and the hydrolysis agent Flooring using a PLA resin, characterized in that 0.01 to 10 parts by weight. According to claim 1, wherein the base layer is a flooring using a PLA resin, characterized in that consisting of a non-foamed layer to a thickness of 1 to 5mm. According to claim 1, wherein the adhesive layer is PLA resin or thermosetting melamine resin is used, flooring using a PLA resin, characterized in that 50 to 200g / ㎡ is applied. The flooring material of claim 1, wherein the end plate layer is made of wood or PLA resin, and has a thickness of 0.5 to 3 mm. The flooring material according to claim 1, wherein the upper surface of the transparent layer is provided with a surface treatment layer, and a base layer is provided on the bottom surface of the end plate layer to maintain a balance. The flooring material of claim 7, wherein the surface treatment layer is coated with a urethane acrylate UV curing agent. The flooring material of claim 7, wherein the base layer is formed of a PLA resin.

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