KR100717930B1 - A sheet flooring with surface layer comprising paper - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long floor decorative material comprising paper in a surface layer, wherein in a continuous sheet-like long floor decorative material composed of a surface layer, a base layer, and a back layer from above, the surface layer is a surface treatment layer, a paper layer, and a buffer layer from above. The long floor decorative material, characterized in that the paper layer is formed of a paper containing pulp, synthetic fibers, and inorganic particles, after the construction by lifting the fashion of the traditional hanji board as it is, by including the improved paper in the surface layer, It has the effect of expressing various appearances through printing, supplementing the problems of construction difficulty, contamination, tearing, tearing, etc. and the disadvantage of giving a hard feeling when walking.

Improved paper, surface treatment layer, paper layer, buffer layer, glass fiber sheet layer

Description

A long floor decorative material comprising a surface layer including paper {A SHEET FLOORING WITH SURFACE LAYER COMPRISING PAPER}

1 is a schematic cross-sectional view of a conventional hanji sheet;

Figure 2 is a schematic cross-sectional view of the floor plate according to the prior art,

Figure 3 is a schematic cross-sectional view of the floor decoration according to the present invention.

* Explanation of symbols for main parts of the drawings

1. Base material layer 10. Surface layer

11. Surface treatment layer 12. Paper layer

13. Printed pattern 14. Buffer layer

20. Back layer

A: Hanji layer varnished with soybean oil

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long floor decorative material comprising paper in a surface layer, and more particularly, to a floor decorative material having superior dimensional stability compared to Korean paper or general paper using paper having a pulp, synthetic fiber and inorganic particle composition.                         

In recent years, interest in health has been heightened by the improvement of living standards and the spread of well-being culture, and the eco-friendly quality certification system has been introduced in the indoor air quality management law for multi-use facilities and the introduction of eco-friendly quality certification system for building materials. The desire for material is increasing.

Conventional flooring using paper is made by impregnating and drying the hanji in soybean oil, perilla oil for several days, and then applying a choji paper on the floor and applying the oiled hanji on it. Afterwards, several varnishing and drying steps are added to prevent stickiness, which can take several days and become cumbersome to use, as well as lifting, odors, mold growth, surface contamination, tearing, There is a problem such as tearing. Moreover, since only one floor is installed on the floor, it feels hard when walking and its appearance is also very simple. Figure 1 is a schematic cross-sectional view of such a conventional Hanji board, it can be seen that the soybean oil fed and varnished Hanji layer (A) single layer.

In order to improve such a problem, Korean Patent Publication No. 2001-0011071 devises a flooring material in which a vinyl sheet layer is adhered to a lower part of a conventional Hanji board to prevent mold due to moisture on the floor, and to relieve a hard feeling when walking. Like general vinyl sheet construction, the workability was improved by laying on the floor and bonding the joints only. However, such a configuration alone could not solve the problems of lifting, surface contamination, tearing, tearing, and simple appearance. Figure 2 is a schematic cross-sectional view of the sheet according to the prior art, it can be seen that the back layer 20 made of a vinyl sheet is laminated on the varnish Hanji layer (A) after soybean oil fed.

In addition, Utility Model Registration No. 20-167661 by the present applicant in the flooring material consisting of a surface layer, a base layer and a back layer, the surface layer includes a surface treatment layer, a natural Hanji layer, a vinyl chloride resin layer and an auxiliary layer and a glass fiber layer. In addition, it discloses a flooring material characterized in that the base layer and the back layer comprises a vinyl chloride resin layer. Here, the surface layer has a natural touch layer impregnated with a transparent resin, and has the surface feel and functional appearance design of Hanji itself, and the surface layer has a dimensional stability by using an auxiliary layer and a glass fiber layer, which are vinyl chloride resin layers. By using the vinyl chloride resin layer in the layer and the back layer, it has functions such as heat retention, ease of construction, cushioning, sound absorption, sound insulation and dustproof. However, the flooring material having such a configuration has a problem that lifting occurs after construction of the flooring because the pulp content of the natural layer is excessively large and the shrinkage change rate is too large.

Most paper and Korean paper are made of pulp, so the shrinkage and expansion change is very large with humidity and temperature. The characteristics of these papers can be easily understood by the windshields of old window frames, which are tightened on a clear and dry day and crumpled by wet and rainy days. This phenomenon is the cause of the rising in the flooring paper is applied, the problem can be solved by reducing the rate of change of shrinkage and expansion of the paper.

In the present invention, in order to meet the social environment and the needs of the customer to devise a flooring material grafted with a natural material paper, the flooring is taut according to the change in temperature and humidity that is a problem that appears when using the paper for flooring applications The purpose of the present invention is to improve the phenomenon of crushing and crushing, and to compensate for problems such as surface contamination, tearing, tearing, and hardness when walking, and to provide flooring having various appearances through printing.

In order to achieve the above object, the flooring decorative material of the present invention is a continuous sheet-like long floor decorative material composed of a surface layer, a substrate layer and a back layer from above, wherein the surface layer is composed of a surface treatment layer, a paper layer, and a buffer layer from above, The paper layer is characterized in that it is formed of paper containing pulp, synthetic fibers and inorganic particles.

In the present invention, to improve the printability and to improve the printability (floating) the flooring material after the construction is the biggest problem that occurs when using the paper as a flooring material made of a composition of pulp, synthetic fibers, inorganic particles Improved paper is applied.

That is, the present invention, in the flooring material consisting of a surface layer, a base layer, and a back layer from above, by using an improved paper made of a composition of pulp, synthetic fibers, and inorganic particles in the surface layer, the dimensional stability of the paper itself is compensated for, and the dimensional reinforcement material is used. The inclusion of phosphorus fiberglass layer solved the problem of lifting the flooring after construction.

In addition, in order to solve the wrinkle problem caused by the use of paper and glass fiber layer without elongation, in the present invention, the paper is impregnated and dried in the impregnant having a flexible property, and there is elongation between the impregnated paper and the glass fiber layer. The buffer layer which is a flexible synthetic resin sheet layer is inserted.

In addition, in the flooring of the present invention, as the inorganic particles in the paper composition, for example, by using talc (talc) to improve the printability to be able to express a variety of appearance through gravure printing. In addition, the urethane acrylate-based UV curable resin excellent in fouling resistance is applied onto the impregnated paper and cured at least 30 µm, thereby achieving perfect stain resistance and tearing of the paper. The problem of tearing could be completely solved.

Hereinafter, with reference to the drawings will be described in detail the floor decoration of the present invention.

3 is a schematic cross-sectional view of the flooring according to the present invention, which is composed of a surface layer 10, a base layer 1, and a back layer 20 from above, and the surface layer 10 is again a surface treatment layer 11 from above. ), Paper layer 12 and buffer layer 14 are shown. The printed pattern 13 is formed on the paper layer 12.

First, the base material layer 1 is a glass fiber sheet layer, which is formed by impregnating and gelling a PVC sol on a glass fiber sheet, or impregnating and drying an EVA resin, rubber or urethane resin for the purpose of imparting the dimensional stability of the flooring material. to be.

Next, to describe the surface layer 10, the core of the flooring material according to the present invention is to use paper for the surface layer 10, wherein the paper is composed of pulp, synthetic fibers and inorganic particles to increase the dimensional stability It is an improvement paper.

Synthetic fiber itself is used to reduce the dimensional change of paper by lowering the proportion of pulp with excellent dimensional stability and large dimensional change in the whole composition. As synthetic fibers, polyesters, polypropylenes, nylons, polyamides, polyurethanes, polyvinyl alcohols, or mixtures thereof can be used.

In addition, for example, talc may be used as the inorganic particles, which not only improves printability by lubricating the surface of the paper, but also provides dimensional stability because it is placed between the pulp particles to reduce the dimensional change of the paper. Is effective. In addition, because talc has an excellent water absorption rate, the talc serves to increase the impregnation when the paper is impregnated with the treatment agent, and is effective in reinforcing the intellect. In addition, inorganic particles such as calcium carbonate (CaCO ₃ ), titanium dioxide (TiO ₂ ), and silicon oxide (SiO ₂ ) may be used.

In the flooring according to the present invention, the paper is preferably composed of a composition of 30 to 50% by weight of pulp, 45 to 60% by weight of synthetic fibers, 1 to 10% by weight of inorganic particles, and 0 to 12% by weight of a binder. As a binder, 1 or more types of vinyl type, acryl type, rubber type, and polyamide type binder can be used.

The paper thus produced is impregnated with one or more kinds of urethane-based, vinyl-based, rubber-based and EVA-based impregnating agents, and dried to form a paper layer 12. The upper part has surface durability related to contamination resistance and torn or tearing of paper. In order to provide, the urethane acrylate ultraviolet curable resin is apply | coated and hardened preferably 30 micrometers or more, and the surface treatment layer 11 is formed.

In addition, the buffer layer 14 inserted between the paper layer 12 and the base layer 1 having insufficient elongation is manufactured using a vinyl chloride resin or a TPE resin (TPO, TPU, SEBS, SBS, PE, HSBR). As a synthetic resin sheet layer, it is used to prevent wrinkles generated when folded.                     

Lastly, the back layer 20 is a synthetic resin sheet layer which may be formed of the same material as the buffer layer 14, and is laminated under the base layer for the purpose of insulation, construction convenience, cushioning, sound absorption, and sound insulation, which are basic functions of the flooring material.

Hereinafter, the present invention will be described in more detail with reference to Examples. However, these Examples are only illustrative of the present invention, and the scope of the present invention is not limited to these.

Example 1 and Comparative Examples 1 to 7

To prepare a paper according to the composition of Table 2 below to measure the rate of change of dimensions of each type. Then, each paper was used to prepare a flooring having the components and contents shown in Table 1 below, and then the rate of dimensional change was measured and a lifting test was performed in a real residential environment.

Each layer except paper and fiberglass was prepared by calendering method.

(1) to produce the improved paper with the components and contents shown in Table 2 below, impart a printed pattern 13 by the gravure printing method, and then impregnated and dried each paper using a urethane-based impregnating agent paper layer 12 Was prepared.

(2) 160 of the buffer layer 14 prepared by rolling at a temperature of 170 to 185 ° C. with a calender according to the components and the content of the buffer layer 14 shown in Table 1 below and the paper layer 12 prepared according to 1 above. After preheating with a heating drum at < RTI ID = 0.0 > C, < / RTI > each layer was laminated at a pressure of 5 kgf / cm < 2 > in an embossing roll for plywood.

(3) A glass fiber sheet (60 g / m 2) was impregnated in the transparent PVC sol of Table 1 below, and gelled in a heating drum at 160 ° C. to prepare a glass fiber sheet layer as the base material layer (1), and The upper layer is prepared in the above 2, the lower layer in the lower back layer 20 according to the ingredients and the content of the calender (calender) according to the rolled at a temperature of 170 ~ 185 ℃ put the back layer 20, Each layer was preheated with a heating drum at 160 ° C., and then laminated on each layer at a pressure of 5 kgf / cm 2 in an embossing roll for plywood.

(4) After the urethane acrylate UV curable resin was applied to the uppermost paper layer 12 of the layer prepared in 3 above, UV cured, a surface treatment layer 11 having a thickness of 30 μm was formed to prepare a long floor decorative material.

Table 1 shows the compositions of the buffer layer 14, the back layer 20, and the PVC sol used in Examples and Comparative Examples.

division ingredient content PVC sol PVC resin (polymerization degree: 1200) Plasticizer: DOP Secondary plasticizer: EPOXY Stabilizer: LOX808D (Korea Daekyo) Filler: CaCO ₃ 100 90 2 2 60 Buffer layer PVC resin (polymerization degree: 1000) Plasticizer: DOP Secondary plasticizer: EPOXY stabilizer: LX310K 100 40 3 2 Back layer PVC resin (polymerization degree: 1000) Plasticizer: DOP filler: CaCO ₃ stabilizer: LX310K 100 50 70 2

Table 2 shows the components and contents of the paper prepared in Examples and Comparative Examples in weight%. In addition, the rate of change of dimensional change of each paper and the rate of change of dimensional change were measured in the state of the finished product of the flooring using each paper, and the contents of observing the lifting state in the real residential environment were displayed.

Classification Example and Comparative Example Comparison 1 Comparison 2 Comparison 3 Comparison 4 Comparison 5 Compare 6 Compare 7 Conduct1 Composition (wt%) pulp 85 20 40 32 50 35 55 40 Synthetic fiber Polyester polyvinyl alcohol 35 10 40 15 Fiberglass 70 3 7 Sepiolite 49 50 Water Soluble Binder (PVA or Acrylic) 15                                              10                                              27                                              25                                              One                                              Talc 30 36 15 5 Basis weight (g / ㎡) 70 30 100 120 75 90 40 45 Work results Size change rate of paper itself (%) 3.5                                              0                                              2                                              0.9                                              1.7                                              1.2                                              1.5                                              0.9                                              Dimensional rate of change after flooring composition (%) 0.1 0 0.07 0.02 0.06 0.03 0.05 0.02 Residential environment test after flooring composition Uplifting Good Uplifting Good Uplifting Good Uplifting Good

※ How to measure the rate of dimensional change

% Change in dimension = (b-a) / a × 100

a: Length measured immediately after taking out after drying in 100 degreeC oven for 1 hour

b: a length measured after soaking the specimen in cold water for 10 minutes

As a result of confirming the state of lifting in the real residential environment after manufacturing the flooring as in the above Examples and Comparative Examples, it was found that there is no abnormality only when the rate of dimensional change of the paper itself is 1.2% or less. In addition, the paper prepared in Comparative Examples 2 and 4 is exposed to the surface of the glass fiber is harmful to the human body, the paper of Comparative Example 6 is difficult to apply to the flooring applications due to the lack of paper strength due to the use of excessive inorganic particles. On the other hand, the paper of the same composition as in Example 1 did not have any problems and excellent printability also appeared to be most suitable for flooring applications.

In the present invention, in order to solve the problem of the conventional products including the paper layer in the surface layer of the flooring material, pulp, synthetic fibers, and inorganic particles were developed and applied to the improved paper that the dimensional stability is significantly improved compared to the general paper . In addition, the glass fiber sheet layer, which is a dimensional reinforcing layer, was applied to completely solve the problem of lifting after construction, while applying a buffer layer between the paper and the glass fiber layer to improve bending and wrinkles. In addition, various appearances can be expressed through gravure printing, and the printability is improved by using talc, which is an inorganic particle, in the composition of the paper. And surface durability of tearing and tearing were secured.

In other words, the long floor decorative material according to the present invention by including the improved paper in the surface layer, while maintaining the fashion of the traditional Hanji board as it is, the problems of lifting, construction difficulty, contamination, tearing, tearing, etc. after construction and gives a hard feeling when walking It has the effect of complementing and expressing various appearances through printing.

Claims (10)

A continuous sheet-like elongated flooring material composed of a surface layer, a substrate layer, and a back layer from above, wherein the surface layer comprises a surface treatment layer, a paper layer, and a buffer layer from above, and the paper layer includes pulp, synthetic fibers, and inorganic particles. Formed from paper, A long flooring material, characterized in that the paper is made from a composition of 30 to 50% by weight of pulp, 45 to 60% by weight of synthetic fibers, 1 to 10% by weight of inorganic particles and 0 to 12% by weight of a binder. delete The flooring material according to claim 1, wherein the base layer is composed of a glass fiber sheet layer, and a buffer layer is inserted between the base layer and the paper layer. The flooring material according to claim 1, wherein the surface treatment layer is coated with a urethane acrylate UV curable resin and cured at least 30 µm. The flooring material according to claim 1, wherein the paper layer is impregnated with one or more kinds of impregnating agents of urethane, vinyl, rubber and EVA. The floor decorative material according to claim 1, wherein the buffer layer and the back layer are made of a synthetic resin sheet and made of vinyl chloride resin or TPE resin (TPO, TPU, SEBS, SBS, PE, HSBR). The flooring material according to claim 1, wherein the synthetic fiber is at least one of polyester, polypropylene, nylon, polyamide, polyurethane, and polyvinyl alcohol fiber. The flooring material according to claim 1, wherein the inorganic particles are talc. The flooring material according to claim 1, wherein the binder is at least one of vinyl, acryl, rubber and polyamide binders. A composition for producing wet blend paper comprising 30 to 50% by weight of pulp, 45 to 60% by weight of polyester, 1 to 10% by weight of talc, and 0 to 12% by weight of polyvinyl alcohol.

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