JPH08258235A - Decorative sheet of wall, furniture, notions and the like - Google Patents

Abstract

PURPOSE: To provide a product or decorative sheet, the surface of which has antibacterial action and humidity absorbing and releasing action over a long period of time and which retains matte effect and warm feeling. CONSTITUTION: Both surface layer 11 and surface decorative layer 12 are made of synthetic resin. In addition, at least either one of the surface layer 11 and the surface decorative layer is mixed with powdered component of egg shell membrane.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet for wall decoration which is mainly used for interior decoration and has antibacterial properties, moisture absorption / exhaust and warmth.

[0002]

2. Description of the Related Art In recent years, a sheet for interior decoration, which is called a wallpaper to be stuck on a wall, a fusuma, a ceiling, etc. in a room, has a base material layer made of paper, woven cloth, knitted cloth, non-woven cloth, etc. Most of the layers are formed. Also, the houses in recent years are windows,
The doors and other openings have a high airtightness due to the use of aluminum sashes, etc. Also, due to the popularization of air conditioning and heating, the use of humidifiers, etc., molds and bacteria adhere to the wallpaper, etc., easily propagate and stain the wallpaper. Not only these molds and bacteria are said to be the cause of diseases such as MRSA and allergies, which is an important issue for hygiene. Conventionally, the technology of applying an inorganic antibacterial agent to the surface of the wallpaper in order to prevent the proliferation of microorganisms on the wallpaper is widely known, and it is also known that the eggshell membrane itself has hygroscopic properties. A woven cloth is dipped in a mixture of the resin composition dispersion and the eggshell membrane powder suspension, and then the urethane resin is coagulated in water to form a coagulated urethane resin microporous, which is then heated. Regarding the artificial leather by the wet method and the dry method used in the field of clothing for obtaining products, paragraph symbols in page 4, column 4 of JP-A-4-311767

Through

[0026]

[0003]

Although it is known that the eggshell membrane itself has hygroscopicity as described above, it is used for interior decoration sheets, furniture sheets, etc. having a surface layer made of synthetic resin. There is no such thing. Therefore, the present invention focuses on the fact that mold and other microorganisms propagate on the surface portion of the decorative sheet, and forms a surface decorative layer containing an eggshell membrane on the surface of the conventional decorative sheet such as wallpaper. Therefore, for example, a product that has been treated with a surface treatment agent and firmly adhered to the surface, has an antibacterial action, a moisture absorption / exhaust action for a long time, and has a matte effect on the surface layer and a warm texture. To provide to the market. However, kneading the eggshell membrane itself into the surface layer is effective for further enhancing the moisture absorption / exhaust effect.

[0004]

In order to achieve the above object, the present invention provides a decorative sheet in which a surface layer and a surface decorative layer are made of a synthetic resin, wherein at least one of the surface layer and the surface decorative layer is a layer. A decorative sheet for walls, furniture, sundries, etc., characterized in that it contains an egg shell membrane powder component.

In order to achieve the above object, in the decorative sheet of the present invention in which the surface layer of a decorative sheet such as a wall or furniture is formed of a synthetic resin, the surface layer contains an egg shell membrane powder component. It may be characterized by that.

To achieve the above object, the eggshell membrane powder component of the decorative sheet for walls, furniture, sundries, etc. according to the present invention is 0.005 to 10 per 100 parts.
It is preferable that the silver component is adsorbed at a ratio of parts by weight.

In order to achieve the above object, the surface decorative layer of the decorative sheet for walls, furniture, sundries, etc. of the present invention is formed on the entire surface of the surface layer by a gravure printing method, a spraying method, a screen printing method or the like. It is characterized in that it is a layer.

In order to achieve the above object, the surface layer of the decorative sheet for walls, furniture, sundries, etc. according to the present invention is a vinyl chloride resin layer.

In the present invention, the egg shell membrane powder component is
The two-layer thin film (egg shell membrane) existing at the boundary between the egg shell and egg white of birds such as chicken, duck and quail is separated and purified,
Next, it is made into fine particles by an appropriate method, and the particle size is 100 μm or less, preferably 10 μm or less. In addition to the eggshell membrane powder component adsorbing the silver component, 100 g of the eggshell membrane powder was added to 500 ml of 0.2 to 0.5 silver nitrate aqueous solution, stirred, filtered, washed with water until the non-adsorbed silver disappeared, and then with acetone. It means dehydrated and dried.

[0010]

According to the present invention, each of the inventions having the above-mentioned constructions is attached by an appropriate method according to the surface of an object such as a wall or ceiling surface, and cut according to the area to be used. . Alternatively, it is cut in advance and sewn or tacked to be used as a furniture covering material.

[0011]

According to the first aspect of the invention, since the egg shell membrane powder component is constituted as described above, the egg shell membrane powder in which the synthetic resin is firmly adhered to at least one of the surface layer and the surface decorative layer as a binder is used. The ingredients have a matt effect, and the eggshell membrane powder ingredient has a moisture absorption / exhaust effect. In addition, the touch feeling is warm and has a touch.

The invention according to claim 2 is characterized in that, in a decorative sheet having a surface layer formed of a synthetic resin, the surface layer contains an egg shell membrane powder component. The same effect as the item 1 is obtained.

In a third aspect of the present invention, the egg shell membrane powder component adsorbs a silver component at a ratio of 0.005 to 10 parts by weight relative to 100 parts by weight. Therefore, in addition to the invention described in claim 1 or claim 2, the antibacterial effect is improved, and even if human skin touches it, there is no possibility of causing skin irritation. Further, if the adsorption ratio of silver does not reach the above range, the antibacterial effect is insufficient, and if it exceeds the above range, the cost increases. Further, conventionally, an antibacterial material, a hygroscopic agent, a matting agent, etc. were separately added according to their respective purposes, but these were combined by adding the egg shell membrane powder component adsorbing silver according to the present invention. The effect described above can be achieved, which contributes to shortening the manufacturing process and reducing the cost.

In the invention according to claim 4, the surface decorative layer is a layer formed on the entire surface of the surface layer by a gravure printing method, a spraying method, a screen printing method or the like, and is therefore included in the surface layer. The function of the eggshell membrane powder component has the effect of acting from the minute gaps of the surface decorative layer to the outer surface of the surface decorative layer. Therefore, even if the surface cosmetic layer does not contain the eggshell membrane powder component, it has the effect of sufficiently exhibiting the above-mentioned antibacterial effect.

In the invention of claim 5, in addition to the effect of the invention of claim 1, 2, 3 or 4, since the resin of the surface layer portion is a vinyl chloride resin, it is most easily available,
It is easy to process, and unlike ordinary decoration sheets made of vinyl chloride resin, it is possible to obtain a sufficiently warm and textured sheet.

Experimental Example Eggshell Membrane Powder After using egg yolk and egg white, the eggshell membranes are thoroughly washed with water, dried and pulverized, then the eggshell and the eggshell membrane are separated, and the eggshell membrane is freeze-pulverized to have a particle size of 10 to 20 microns. Eggshell membrane powder was obtained.
In the practice of the present invention, as the eggshell membrane powder, Sankakumak P manufactured by Taiyo Kagaku Co., Ltd., and Sankakumak P-A2 and Sankakumak P-A5 having silver adsorbed thereon were used.

As the structure of the decorative sheet for walls, furniture, sundries, etc. of the present invention, as shown in FIG. 1, the base material layer 10 is made of at least one kind of paper, woven cloth, knitted cloth, and non-woven cloth. The fibers used in the above may be natural fibers, synthetic fibers or mixed fibers thereof. As the paper, flame-retardant paper or non-combustible paper is usually used. A surface layer 11 made of a synthetic resin is formed on one surface of the base material layer 10 by a normal calendering method, a T-die method, a sol coating method or the like. Tables 1 and 2 below show examples of the composition of the surface layer 11. Table 1 shows an experimental example of 10 surface layers 11 shown by ∘ 10 by the sol coating method, and Table 2 shows an experimental example of 3 surface layers 11 by the calender method.

[0018]

[Table 1]

[0019]

[Table 2]

Next, a compounding example of the surface treating agent for treating the surface of the surface layer 11 to form the surface decorative layer 12 will be described below. First, as a base treatment agent composition as a base of the surface treatment agent, for example, those shown in Table 3 are shown. A and C are matte types, B is a gloss type, and if necessary, select one of them. To use.

Next, Tables 4 to 6 show the base treatment agents shown in Table 3, the types of eggshell membranes to be added to the base treatment agents, the amount of addition thereof, and the difference in coating amount. The surface treatment agent shown in Table 5 was applied to the surface of the surface layer 11 by gravure mesh roll printing (100 mesh × 1 time) to give 15 g / m 2.
²⁾ , after drying and heat treatment at 230 ℃ for 1 minute, the mixture of foaming agent is foamed and gelled,
Got the product.

[0022]

[Table 3]

[0023]

[Table 4]

[0024]

[Table 5]

[0025]

[Table 6]

1. Test method 1) Sample, 7 kinds of wall decoration sheets in which a surface decorative layer 12 was formed by applying the surface treatment agent shown in Table 4 to the surface layer 11 not added with Sankakumaku shown in Table 1. Indicates that the eggshell membrane is not mixed. Other experiments were carried out using only the bacterial solution containing the sample, and the results are shown in Tables 7 to 9 together as a blank. 2) Test strain: a) Staphylococcus aureus b) Escherichia coli c) Salmonella 3) Method (shaking method) Alcohol-sterilized sample (1 x 1)
cm)

2. Test results

[0028]

[Table 7]

[0029]

[Table 8]

[0030]

[Table 9]

According to Tables 7 and 8, the rank of antibacterial properties was evaluated after 24 hours, and in Table 9 after 24 hours,
,,,,,, in that order, the antibacterial property was improved almost in proportion to the addition amount of Sankaku Mark P-A5 and P-A2. A graph of the results is shown in FIG.
Through FIG.

Next, the surface layer 1 was prepared by the calendar method shown in Table 2 above.
No. 1 which has no eggshell membrane powder component and is not coated with a surface treatment agent at all is H, and surface layer 11 has 3% egg shell membrane powder component mixed on the surface The surface treatment agent which is the same as D and D without the treatment agent is the same as the surface treatment agent.
A moisture absorption / exhaust test was carried out by comparing the sample coated with g / m ² with G.

Test method A sample (2 × 2 cm) was vacuum dried at 105 ° C. for 1 hour, and then 2
After standing still in a thermo-hygrostat under an atmosphere of 5 ° C. and 90% relative humidity for 3 hours, 6 hours and 24 hours, the amount of moisture absorption was measured to calculate the weight increase rate (%) with respect to the initial weight. Remove the sample and leave it in an atmosphere of 25 ° C and 22% relative humidity.
The amount of moisture released after 2 hours and 4 hours was measured, and the weight increase rate was calculated. The results are shown in Table 10.

[0034]

[Table 10]

Next, among those produced by the calendering method shown in Table 2, those having a surface layer having a concentration of 3% of Sankakumak shown in Table 2 as a base and having Sankakumak mixed in the surface decorative layer Table 11 shows the results of the antibacterial test by the shaking method for those not tested.

Blank 1 (Blank) is when no sample is used. Indicates that the surface layer 11 is not added with Sankakumaku. Or surface treatment agent Sankakumaku 7.7
% Of 0.15 g / m ^{2 is} applied, and the surface treatment agent containing 20% of Sankakumak is 0.15 g / m ^2.
m ² applied.

[0037]

[Table 11]

Next, the base layer 10 (70 g / m ² flame-retardant paper)
A moisture absorbing / releasing test was carried out on the surface layer 11 only, on which the surface decorative layer 12 was not formed. 1. Samples 10 examples shown in Table 2 were used, and the surface decorative layer 12 was not formed on this surface. 2. Test method 1 each of the above samples cut into 2 x 2 cm
After vacuum drying at 05 ° C. for 1 hour, the sample was allowed to stand in an atmosphere of 25 ° C. and relative humidity of 90 ° C., and the moisture absorption amount after 24 hours was measured. Then, the sample was left to stand in a dry state with a relative humidity of 22%, and the amount of moisture released after 6 hours was measured. These moisture absorption and desorption rates are shown in Table 12 as a weight increase rate (%) with respect to the initial weight. Three samples were used and the average value of the results of three experiments was displayed.

[0039]

[Table 12] From the experiment of Table 12, the amount of moisture absorption increased according to the amount of addition of Sankakumaku.

Next, gloss and feel tests were conducted. Test Method As the surface layer 11, the glossiness and the feel test were performed on the surface treatment examples shown in Table 5 applied to the surfaces of the examples containing the foaming agent and the examples containing no foaming agent in Table 1. . 15 g / m ² of each treatment agent in Table 5 was applied by a gravure mesh print roll (100 mesh × 1 time),
After drying, heat treatment was performed at 230 ° C./min to form a foamed gel, and the performance was evaluated. Gloss of sample is Minolta gloss meter GM
The results measured using -268 are shown in Table 13.

[0041]

[Table 13]

Next, as a feel-improving test, when the surface layer 11 is made of vinyl chloride resin, there is a feeling of wanting to cool when touched by hand. Table 13 shows how the user feels with the following four-step display. Table 14 ◎ Feels very warm ○ Feels warm △ Feels slightly warm × Cold (same as conventional vinyl chloride resin surface layer)

[0043]

[Table 14]

From the above various experiments, regardless of the material of the surface layer 11 on the base material layer 10, when the surface treatment agent contained the egg shell membrane powder component, the intended purpose was achieved. The effect was more remarkable in each experiment as the coating amount as the eggshell membrane powder component was larger within the range of the experiment. In addition, the antibacterial effect was particularly good in the case where silver was pre-adsorbed on the egg shell membrane powder component.

Example 1 An example including the inventions of claims 1 and 3 to 5, wherein flame retardant paper or non-combustible paper is used as the base material layer 10 for the wall decoration sheet, The surface layer 11 is formed on this one surface by a coating method using a composition shown in Table 1, that is, a material mainly containing vinyl chloride resin (paste resin).
A foaming agent is mixed into the surface layer portion if necessary.
For example, by selecting one of Table 1 to
To form. As the surface treatment agent, the base treatment agent having the composition of B in Table 3 was mixed with the experimental example in Table 5 or
As shown in the figure, Sankakumak coating amount 0.3 to 1.4g / m ²
Was applied by the gravure printing method at a ratio of, and post-heated to gelate the resin to obtain a product.

Example 2 An example including the inventions of claims 1 and 3 to 5, wherein a knitted fabric or a plain woven fabric is used as the base material layer 10 for a leather sheet for furniture and sundries. The surface layer 11 is composed of the composition shown in Table 1, and the surface treatment agent of Table 6 is applied by the screen printing method as the surface treatment material.
After heat treatment, the base material layer 10, the surface layer 11 and the surface decorative layer 1
A product consisting of 2 was obtained. Therefore, fine gaps 13 are formed on the entire surface of the leather sheet in the surface decorative layer 12, and this is exaggeratedly illustrated in FIG. 1. In fact, each of these gaps is between 500 and 10μ. In both Examples 1 and 2, the surface treatment agent may be applied at least once and may be applied 2 to 3 times as needed.

Example 3 This is an example including the invention described in claim 2, the base layer 10 is the same as in Example 1 or 2, and the composition forming the surface layer 11 is the composition shown in Table 2. Was formed by a calendar method and had no surface decorative layer (see FIG. 2).

The resin constituting the surface layer 11 in each of the above-mentioned embodiments uses at least one of the above-mentioned vinyl chloride resin, olefin resin, acrylic resin, ester resin and urethane resin. Are also included in the embodiments of the present invention.

Further, as shown in Table 3, the synthetic resin used as the base treating agent of the surface treating agent forming the surface decorative layer 12 is a modified acrylic resin, vinyl chloride vinyl acetate copolymer resin, or vinyl chloride acrylic resin. Of course, the resin is not limited to the above-exemplified resins as long as it has a bondability with the surface layer 11.

In addition to the above experiment, when the surface layer 11 does not contain sankakumaku, and the surface makeup layer contains sankakumak only, if the amount is too small, the desired effect is not exhibited, and if too much, the surface layer is not produced. It does not adhere well to 11. The amount is 3 to 15 with respect to the solution of the base treatment agent.
%, Preferably 3 to 7%, but these numerical values themselves are not particularly limited.

The compositions of the above-mentioned Examples 1 and 2 may be appropriately combined, or the surface layer 11 may be formed by a calendar method, a T-die method, a sol coating method, a laminator method, or the like. Included in the examples of.

Table 7 shows the effects of the first to third embodiments.
Since it has already been shown below, it will not be repeated.

[Brief description of drawings]

FIG. 1 is a partially longitudinally enlarged side view of a first embodiment.

FIG. 2 is a partially longitudinally enlarged side view of a third embodiment.

FIG. 3 is a graph showing an antibacterial action against Staphylococcus aureus.

FIG. 4 is a graph showing an antibacterial action against Escherichia coli.

FIG. 5 is a graph showing an antibacterial action against Salmonella.

Claims (5)

[Claims] 1. A decorative sheet having a surface layer and a surface decorative layer made of synthetic resin, wherein at least one of the surface layer and the surface decorative layer contains an egg shell membrane powder component. A decorative sheet for walls, furniture, sundries, etc. 2. A decorative sheet for a wall, furniture, sundries or the like, characterized in that the surface layer is made of a synthetic resin, and the surface layer contains an egg shell membrane powder component. 3. The egg shell membrane powder component is obtained by adsorbing a silver component in a weight ratio of 0.005 to 10 parts with respect to 100 parts of the powder component. Item 2. A decorative sheet for walls, furniture, sundries, etc. according to item 2. 4. The wall according to claim 1 or 3, wherein the surface decorative layer is a layer formed on the entire surface of the surface layer by a gravure printing method, a spraying method, a screen printing method, or the like. Sheets for furniture, furniture, sundries, etc. 5. The decorative sheet for walls, furniture, sundries, etc. according to claim 1, claim 2, claim 3 or claim 4, wherein the surface layer is a vinyl chloride resin layer.