JP7300758B2 - Fire-retardant material with enhanced flame-retardant properties and capable of digital printing, and method for producing the same - Google Patents

Description

The present invention relates to a "flame-retardant material with enhanced flame-retardant properties and capable of digital printing, and a method for producing the same",
More specifically, it relates to flame-retardant materials that can be digitally printed, and that have enhanced flame-retardant properties for printed installations printed with guide characters, pictures, and numbers, including shooting range targets and shooting scores, and their manufacturing methods. ;
In particular, the flame-retardant layer composition of the present invention composed of a two-component silicone resin, a flame retardant, a diluent, and an additive is coated or applied on the top and bottom of a substrate, and the flame-retardant layer A "flame-retardant material with enhanced flame-retardant properties and capable of digital printing, comprising a primer layer of the present invention provided on the top of the flame layer and a digitally printed layer provided on the top of the primer layer, and According to its manufacturing method:
Compared to prior art range target or printed installation materials:
In particular, fire resistance is enhanced to prevent fires caused by live bullets on targets or printed installations printed with guide letters, pictures, and numbers including shooting points when shooting live bullets at the shooting range.
Due to the inherent physical properties of the flameproof layer and the primer layer, UV (ultraviolet) digital printing of prints printed with guide characters, pictures, and numbers including targets or shooting points on the outside of the flameproof layer is easy, and the UV digital printing layer The adsorption force of the product and the quality of the product surface are improved, and the printing clarity of the printed matter is clearer.
Enhanced weather resistance, no discoloration even when exposed to the outdoors for a long time, enhanced cold resistance and abrasion resistance physical properties, and improved workability;
The present invention relates to a "flame-retardant material with enhanced flame-retardant properties and capable of digital printing, and a method for manufacturing the same", which is easy to manufacture and has improved workability.

The background art of the present invention is described below, and the background art of the present invention is described in Patent Document 1. Using this, the background art of the present invention and problems other than the conventional art are further described.

In general, when live ammunition is fired at the shooting range, the target of the live ammunition shooting range or printed installations printed with guide letters, pictures, and numbers including the number of shooting points will be directly burned, or the skin of the live ammunition will be printed. Fires frequently break out outside installations or firing ranges and are extinguished using fire extinguishers or water.

Also, when a fire breaks out in a vehicle or facility, fire extinguishers or water are used to extinguish the fire. ing.

In order to prevent this, the "suffocation fire extinguishing cloth" described in Patent Document 1 is
As shown in FIG. 1, a cloth body 110 of a fire extinguishing cloth 100 formed in a rectangular plane shape is applied to a vehicle in which a fire has broken out so as to cut off the air supplied from the outside to suppress the fire in the vehicle. and: a handle 120 installed at each of the four corners of the fabric body so as to grip each corner of the fabric body; at least one nozzle 130 formed through the fabric body;
The fabric body 110 is made of silica fabric, Al2O3 and Na2O to withstand temperatures of 1,300° C. or higher, and is coated with flame-retardant silicone. The asphyxiation fire extinguishing cloth 10 is finished with aramid 5380 along the cut through holes and further includes: a case for storing and storing the fire extinguishing cloth 100;

Therefore, the fire extinguishing time is shortened, the fire is extinguished at an early stage, and the amount of harmful gas released to the outside is reduced. put away.

Also, prior art range targets or range printed installations:
In particular, due to the deterioration of flame resistance, fires occur due to live shooting of targets or printed installations printed with guidance letters, pictures, and numbers including shooting points when shooting at a shooting range.
It is difficult to perform UV digital printing in which guide characters, pictures, and numbers including shooting points are printed on the outside of the target or the printing installation due to the deterioration of the adsorption power and processability of the UV pigment of the printing installation. significant loss of sharpness;
There are problems such as deterioration in weather resistance, discoloration when exposed to the outdoors for a long period of time, and deterioration in cold resistance, abrasion resistance and workability.

In addition, the flame retardancy is enhanced, UV digital printing is easy, and the printing clarity of the printed matter is clear;
There is a strong demand for the development of flame-retardant materials with enhanced physical properties such as weather resistance, cold resistance, and abrasion resistance, and improved workability, and methods for producing the same.

Korean Patent No. 10-2171358 (Registration Date: October 22, 2020, Invention Name: Suffocation Fire Cloth)

According to the present invention, "a fire-retardant material with enhanced flame-retardant properties and capable of being digitally printed, and a method for producing the same";
Compared to prior art range target or printed installation materials:
In particular, fire resistance is enhanced to prevent fires caused by live bullets on targets or printed installations printed with guide letters, pictures, and numbers including shooting points when shooting live bullets at the shooting range.
Due to the inherent physical properties of the flameproof layer and the primer layer, it is easy to UV digital print printed materials with targets or guide letters, pictures, and numbers including shooting points on the outside of the flameproof layer, and the adsorption power of the UV digital printing layer. And the quality of the product surface is improved, and the printing clarity of the printed matter is clearer;
Weather resistance, cold resistance, and abrasion resistance are strengthened, and workability is improved;
It is an object of the present invention and the present invention to provide a "flame-retardant material with enhanced flame-retardant properties and capable of digital printing, and a method for manufacturing the same", which is easy to manufacture and has improved workability. Let it be the problem to be solved.

Silica fabric, which is the base material of the present invention, and the flame retardant layer composition formed by the two-part silicone resin, flame retardant, diluent, and additive of the present invention are coated on the top and bottom of the base material, or an applied flame barrier layer;
a primer layer formed of methylcyclohexane, isopropyl acetate, methyl ethyl ketone, and silicon dioxide formed according to the present invention outside the flameproof layer;
A "flame-retardant material with enhanced flame-retardant properties and capable of digital printing" comprising a UV digital printing layer provided outside the primer layer; A method for manufacturing a flameproof material that can be printed digitally"; to solve the above problems.

According to the "flame-retardant material with enhanced flame-retardant properties and capable of digital printing, and method for producing the same", comprising the present invention;
Compared to prior art range target or printed installation materials:
In particular, fire resistance is enhanced to prevent fires caused by targets or printed installations printed with guidance letters, pictures, and numbers including shooting points during live shooting at a shooting range;
Due to the inherent physical properties of the flameproof layer and the primer layer, it is easy to UV digital print printed materials with targets or guide letters, pictures, and numbers including shooting points on the outside of the flameproof layer, and the adsorption power of the UV digital printing layer. And the effect that the quality of the product surface is improved and the printing definition of the printed matter is clearer;
It has enhanced weather resistance, does not discolor even when exposed to the outdoors for a long period of time, has enhanced cold resistance and abrasion resistance physical properties, and has the effect of improving workability; It is an extremely useful invention that brings about the effect of improving.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a reference diagram showing a prior art suffocation-extinguishing cloth; 1 is a perspective view showing a flameproof material according to the present invention; FIG. 1 is a schematic diagram schematically showing a method for manufacturing a flameproof material according to the present invention; FIG. FIG. 2 is a reference diagram showing a knife construction method of a method for manufacturing a flameproof material according to the present invention; FIG. 5 is a reference diagram showing another method of manufacturing a flameproof material according to the present invention; FIG. 5 is a reference diagram showing another method of manufacturing a flameproof material according to the present invention;

Hereinafter, the ``flame-retardant material with enhanced flame-retardant properties and capable of digital printing, and a method for producing the same'' according to the present invention will be described in detail with reference to the accompanying drawings.

The compositions and weight ratios of the corresponding layers constituting the present invention are not simply described as limited numerical values;
“The flame-retardant material that can be digitally printed with enhanced flame-retardant properties according to the present invention,
Compared to prior art range target or printed installation materials,
Fire resistance is enhanced to prevent fires caused by targets or printed installations printed with guidance letters, pictures, and numbers including shooting points during live shooting at the shooting range.
Due to the inherent physical properties of the flameproof layer and the primer layer, it is easy to UV digital print printed materials with targets or guide letters, pictures, and numbers including shooting points on the outside of the flameproof layer, and the adsorption power of the UV digital printing layer. And the quality of the product surface is improved, and the printing clarity of the printed matter is clearer;
Weather resistance, cold resistance, and abrasion resistance are strengthened, and workability is improved;
Its ease of manufacture and improved workability: this is only a simple numerical limitation, as the composition and weight ratios of the proper composition are further embodied in the examples of the present invention. Let me make it clear that it is not.

As shown in Figure 2;
The flameproofness of printed installations printed with guidance letters, pictures, and numbers including shooting range targets or shooting points is enhanced, and digital printing is possible, according to the present invention. Flame-retardant material 500 that can
1) a substrate 510 composed of silica fabric;
2) A flame-retardant layer 520 coated or coated with a flame-retardant layer composition composed of a two-part silicone resin, a flame-retardant, a diluent, and an additive provided above and below the base material:
3) a primer layer 530 made of methylcyclohexane, isopropyl acetate, methyl ethyl ketone, and silicon dioxide provided outside the flameproof layer 520;
4) a UV digitally printed digital printing layer 540 provided outside the primer layer 530;

The base material 510 is
Silica fibers having a silicon dioxide (SiO2) content of 96 to 98% and a melting temperature of 1,600 to 1,900° C. are woven in the form of a woven silica fabric having a thickness of 0.3 to 1.5 mm. ,
Preferably, it consists of a silica fabric woven in the form of a fabric having a silicon dioxide (SiO2) content of 97%, a melting temperature of 1,600° C. and a thickness of 0.7 mm.

Therefore, the silicon dioxide (SiO2) content of 96-98% enhances the heat resistance of the substrate 210 at 1,100-1,400°C,
The silicone resin-based flame retardant layer composition of the present invention can be easily coated or applied to the outside of the substrate composed of silica fabric having the above physical properties, and has flame retardancy, cold resistance, and abrasion resistance. The base material 510 is made of a silica fabric that is reinforced, further strengthens the bonding force between the base material and the flameproof layer, improves workability, and has excellent workability.

The flameproof layer 520 is
Based on 100% by weight of the total flame barrier composition:
Specific gravity 1.1, hardness 5 to 45 (Shore A), elongation 150 to 1,500%, viscosity 20,000 to 350,000 mPa. and a silicone resin to which 0.01 to 0.1 parts by weight of a platinum catalyst, which is a catalyst for accelerating the curing reaction of the silicone resin, is added based on 100 parts by weight of the silicone resin. Type A and
Specific gravity 1.1, hardness 5 to 45 (Shore A), elongation 150 to 1,500%, viscosity 20,000 to 350,000 mPa. s range of solvent-free silicone resins, based on 100 parts by weight of silicone resin, siloxanes and silicones, dimethyl (di-Me ), a cross-linking agent in which 0.5 to 7.5 parts by weight of a mixture of one or more selected from methyl hydrogen and 1-ethynyl-1-cyclo 1-ethyl-1-cyclohexanol (ECH) retardant of 0.5 to 4.5 parts by weight of silicone resin B type was prepared at a weight ratio of 1:1, heat curing type 2 30 to 75% by weight of a liquid silicone resin;
It is a flame retardant whose role is to delay ignition and prevent the spread of combustion:
Based on 100% by weight of the flame retardant composition,
5 to 30% by weight of aluminum hydroxide having a specific gravity of 2.2 to 2.7, a particle size of 1 to 30 μm, a melting point of 300° C. and a purity of 99 to 100%;
20 to 25% by weight of magnesium hydroxide having a specific gravity of 2.2 to 2.5, a particle size of 1.0 to 5 μm, a melting point of 350° C. and a purity of 94 to 100%;
20 to 25% by weight of a phosphorus-based flame retardant having a specific gravity of 1.0 to 1.5, a particle size of 3 to 15 μm, a decomposition temperature of 300 to 400° C., and a phosphorus content of 10 to 35%;
Al2O3 99.1-99.7% by weight, Na2O 0.2-0.4% by weight, specific gravity 3.75-3.9, particle size 0.02-3 μm, melting point 2000-2500°C , 0.05 to 0.25% by weight of SiO2 and 10 to 20% by weight of a ceramic flame retardant made of 0.05 to 0.25% by weight of Fe2O3;
SiO2 99.1 to 99.8% by weight, Al2O3 0.1 to 0.5% by weight, Fe2O3 0.05 having a specific gravity of 2 to 2.2, a particle size of 7 to 40 nm, and a melting point of 1,600 to 1,800°C. 10 to 45% by weight of a flame retardant composition made up of 20 to 25% by weight of a silica-based flame retardant made up of 0.05 to 0.2% by weight of TiO2;
Viscosity control and dispersion diluent for silicone resins and flame retardants:
BTX Free type viscosity 2.1 cP (25° C.) Decamethylcyclopentasiloxane content 30-100% by weight, silicone diluent 15-25% by weight;
Based on 100 parts by weight of the total composition of the flameproof layer,
Colorant for coloring the flame barrier layer:
The flame retardant layer composition is prepared by adding 3.0 to 10 parts by weight of a coloring agent containing 15 to 25% by weight of polydimethylsiloxane and 20 to 30% by weight of titanium dioxide.

In addition, the flameproof layer composition prepared above is coated or applied to the top and bottom of the base material with a thickness of 0.01 to 0.5 mm by the production method of the present invention. It consists of a flameproof layer 520 made up of layers 521 , 522 .

The primer layer 530 is
60 to 80% by weight of methylcyclohexane, 15 to 25% by weight of isopropyl acetate, 4 to 5% by weight of methyl ethyl ketone, and 1 to 10% by weight of silicon dioxide prepared according to the present invention provided outside the flameproof layer 520 100 to 1000 mPa.s. s, consisting of a primer layer 530 with a coating or application thickness of 0.01 to 0.05 mm.

Therefore, when the digital printing layer 540 is formed on the outside of the flameproof layer 520, the adsorption power of the UV pigment of the UV digital printing layer and the quality of the product surface are improved, and the guide letters and pictures including the target or the shooting score are improved. It is composed of a primer layer 530 that facilitates UV digital printing of a printed matter on which numbers are printed and has a clearer print definition.

The digital print layer 540 is
A digital printing layer 530 is provided on the outside of the primer layer 530 and is a printing layer on which guide letters, pictures, and numbers including the number of shooting points are printed by UV digital printing.

Accordingly, a flame barrier layer 520 having the flame barrier composition of the present invention applied or coated over and under substrate 510:
The flameproof layer 520 made of the heat-curing type two-liquid type silicone resin of the present invention is more easily coated or applied to the outside of the base material 510 made of silica fabric, and the base material 510 and the fireproof layer 520 are easily coated or applied. The flame layer 520 is further strengthened in bonding strength and cold resistance, workability is improved, and workability is excellent;
The composite flame retardant composition of the present invention made of aluminum hydroxide, magnesium hydroxide, phosphorus-based flame retardant, ceramic-based flame retardant, and silica-based flame retardant,
A direct fire occurs due to the live bullet shooting of the target for the shooting range or the printed installation with guide letters, pictures, and numbers including the number of shooting points, or the shell at the time of live shooting leaves the printed installation or the outside of the shooting range. and, in the event of a fire, a structure that delays ignition, prevents the spread of combustion, and has enhanced flame resistance and weather resistance;
The BTX Free type silicone diluent adjusts the viscosity of the silicone resin and the flame retardant and disperses and dilutes them, thereby further stabilizing the inherent physical properties of the silicone resin and the flame retardant of the flame retardant layer composition. be done.

In addition, the flameproof layer 520 made of the heat-curable two-liquid type silicone resin of the present invention, and the methylcyclohexane, isopropyl acetate, methylethylketone, and silicon dioxide of the present invention provided outside the flameproof layer 520. Formed viscosity of 100 to 1000 mPa.s. by the primer layer 530 of s;
When forming the digital printing layer 540, which is a printing layer on which guide letters, pictures, and numbers including shooting scores are printed by UV digital printing, the adsorption power of the UV pigment and the quality of the product surface are improved, making the digital printing layer 540 easier. It consists of a flame barrier layer 520 and a primer layer 530 which are printed and in which the print definition of the digitally printed layer 540 is even sharper.

The digital print layer 540 is
A digital printing layer 540, which is a printing layer on which guide letters, pictures, and numbers including shooting points are UV digitally printed by a primer layer 530 provided outside the flameproof layer 520,
During UV digital printing, the inherent physical properties of the silicone resin-based flameproof layer 520 and the primer layer 530 made of methylcyclohexane, isopropyl acetate, methyl ethyl ketone, and silicon dioxide improve workability and print adsorption, and are flameproof. Consists of a digitally printed layer 540 in a configuration that is more easily printed on the exterior of layer 520 and the print definition of the digitally printed layer is more clearly exposed on the exterior.

Therefore, the "flame-retardant material 500 with enhanced flame-retardant properties and capable of digital printing" composed of the base material 510, the flame-retardant layer 520, the primer layer 530, and the digital print layer 540 of the present invention is
A direct fire occurs due to the live bullet shooting of the target for the shooting range or the printed installation with guide letters, pictures, and numbers including the number of shooting points, or the shell at the time of live shooting leaves the printed installation or the outside of the shooting range. Then, in the event of a fire,
The flame-retardant layer 520 has excellent flame-retardant properties, fires are extinguished more quickly, weather resistance is enhanced, and a technical configuration that does not discolor even when exposed to the outdoors for a long period of time;
Due to the unique physical properties of the flameproof layer 520 and the primer layer 530, it is easy to generate the digital printing layer 540 of the UV digital printing method, which is a method of sticking and curing on the material instead of penetrating the material. While the print definition is clearer,
The light emitted from the UV lamp of the digital printing machine improves the adsorption power of the UV ink and dries it instantly. A technical configuration that enables printing on materials and facilitates mass production;
A technical configuration in which cold resistance and abrasion resistance are also enhanced by the base material 510 and the flameproof layer 520, and the durability of the finished product is improved;
Workability is further improved by improving workability and printing adsorption by the flameproof layer 520 and the primer layer 530; Consists of ``flameproof material 500 with enhanced flameproofness and capable of digital printing'' be done.

and, if necessary;
The base material 510 may be composed of a flameproof material 500 in which glass fiber fabric or quartz fabric is substituted;
The flameproof material 500 may be composed of a structure in which the two-component silicone resin is replaced with a one-component silicone resin;
A flameproof layer 520 composed of first and second flameproof layers 521 and 522 respectively provided on the base material 510 is provided only on the upper part of the base material 510 or on the lower part of the base material 510. May consist of a flame material 500;
A flameproof layer 520 composed of first and second flameproof layers 521 and 522 provided on and under the base material 510, respectively, is provided in multiple layers on the top or bottom of the base material 510. may be composed of flame retardant material 500;
The primer layer 530 may be composed of the flameproof material 500 provided outside the first and second flameproof layers 521 and 522 provided above and below the substrate 510 , respectively.

Hereinafter, the "method for producing a flameproof material 500 with enhanced flameproof properties and capable of digital printing" of the present invention will be described.

As shown in Figures 3 and 4, (product configuration diagram: see Figure 2)
The flameproofness of printed installations printed with guidance letters, pictures, and numbers including shooting range targets or shooting points is enhanced, and digital printing is possible. The manufacturing method of the possible flameproof material 500 is
S1 step: manufacturing step of substrate which is silica fabric;
(Silica, which is a base material in which silica fibers having a silicon dioxide (SiO2) content of 96 to 98% and a melting temperature of 1,600 to 1,900 ° C. are woven in a woven fabric form with a thickness of 0.3 to 1.5 mm step in which the fabric is manufactured)
Step S2: forming a first flame-retardant layer on the top of the substrate with a flame-retardant composition having a viscosity in the range of 1,000 to 300,000 cP, which is knife-coated or applied and then hot-air dried;
(After transferring the substrate with a back roll, a flame retardant composition with a viscosity ranging from 1,000 to 300,000 cP was applied to the front surface of the substrate with a knife to a thickness of 0.01 to 0.5 mm. After uniformly coating or applying, apply hot air and dry to create the first flameproof layer)
Step S3: Forming a second flame-retardant layer on the bottom of the substrate with a flame-retardant composition having a viscosity in the range of 1,000 to 300,000 cP, which is knife-coated or applied and then hot-air dried;
(A flame-retardant composition with a viscosity in the range of 1,000 to 300,000 cP is uniformly coated with a knife to a thickness of 0.01 to 0.5 mm or After application, hot air is applied to dry to form the second flameproof layer)
Step S4: Passing the substrate with the first and second flameproof layers through an oven, and cooling after re-drying the first and second flameproof layers;
(A step of passing the substrate on which the first and second flameproof layers are formed through an oven at a temperature of 150 to 200° C., re-drying, and cooling the substrate with improved complete drying and dimensional stability in the atmosphere)
S5 step: a step of coating or applying a primer layer on the outside of the first flame-retardant layer of the substrate on which the first and second flame-retardant layers are formed;
(On the outside of the first flame-retardant layer of the base material on which the first and second flame-retardant layers are formed, a primer layer is uniformly gravure-coated or applied with a thickness of 0.01 to 0.05 mm, and then heated at 80 to 120 ° C. A step in which the primer layer is generated by applying hot air of
Step S6: The substrates on which the primer layer is formed are each passed through a UV digital printing machine, and after the digital printing layer is formed on the outside of the substrate on which the primer layer is formed by UV lamp irradiation, the substrate is cooled and finished. the step in which the product is manufactured;
(Substrates on which the primer layer is formed are continuously passed through a UV digital printing machine, and after the digital printing layer is formed on the outside of the substrate on which the primer layer is formed by UV lamp irradiation, it is cooled. , the step at which the final product is manufactured)
As described above, the "flame-retardant enhanced digital printable flame-retardant material 500" of the present invention is manufactured by the manufacturing method of steps S1 to S6;
Also, the substrate 510, the flameproof composition, and the primer layer composition are manufactured with the same substrate 510, flameproof composition, and primer layer composition as those shown in FIG.

Therefore, the method for manufacturing the "fire-retardant material 500 with enhanced flame-retardant properties and capable of digital printing" comprising the substrate 510, the flame-retardant layer 520, the primer layer 530, and the digital print layer 540 of the present invention is as follows:
Compared to prior art range target or printed installation materials:
In particular, manufacture of a flameproof layer 520 that prevents fire caused by live bullet shooting of printed installations printed with guide characters, pictures, and numbers including targets or shooting points when live bullets are fired at a shooting range with enhanced flame resistance. a method;
Due to the inherent physical properties of the flame-retardant layer 520 and the primer layer 530, it is easy to UV digital print a printed matter on which guide characters, pictures, and numbers including targets or shooting points are printed on the outside of the flame-retardant layer 520. a method for producing a digital print layer 540 with improved quality and sharper print definition;
a method for manufacturing a substrate 510 and a flameproof layer 520 with enhanced weather resistance, no discoloration even when exposed to the outdoors for a long period of time, enhanced physical properties of cold resistance and abrasion resistance, and improved workability;
It consists of a manufacturing method that is easy to manufacture and has improved workability; a method for manufacturing a flameproof material 500 with enhanced flameproofness and capable of digital printing.

If necessary, the knife coating or coating method in which the first and second flameproof layers 521 and 522 of the steps S2 and S3 are produced,
As shown in FIG.
After loading the flame retardant layer composition in the bath, the substrate is immersed in the bath, the flame retardant layer composition is loaded on the front and rear surfaces of the substrate, and transferred by transfer rolls. The base material with the flameproof layer manufactured may be passed through the oven of the manufacturing method of step S4 and re-dried to manufacture the finished product.
When the dipping method is used, the flame-retardant composition is prepared with a viscosity ranging from 100 to 10,000 cP, and the flame-retardant layer composition is easily loaded on the front and rear surfaces of the substrate.

Also, as shown in FIG.
Using a circular screen, the flame retardant composition is transferred to the squeeze, transferred to the substrate, coated or applied, and then dried by heating or direct current heat or convection heat to produce the first and second flame retardant layers. The base material on which the first and second flameproof layers are manufactured by the circular screen method is passed through an oven according to the manufacturing method of step S4 and dried again to manufacture a finished product. may be
When the circular screen method is used, it is manufactured with a flame-retardant composition having a viscosity in the range of 200 to 300,000 cP so that the flame-retardant layer composition can be easily loaded on the front and rear surfaces of the substrate.

Therefore, as described above, when the dipping method or the circular screen coating method is used, the manufacturing method is such that the first and second flameproof layers 521 and 522 can be simultaneously formed on the front and rear surfaces of the substrate 510 .

and, if necessary;
The manufacturing steps of the first and second flame retardant layers 521 and 522 coated or applied on the outside of the base material 510 in the steps S2 to S4 are repeated again to form the first and second flame barrier layers on the outside of the base material 510. Layers 521, 522 may be configured in a manufacturing method in which multiple layers are manufactured;
The step S6 is replaced with step S61 to be described later to generate the digital print layer 540 only outside the first flameproof layer 521 provided on the top of the substrate 510, or to generate the digital print layer 540 on the bottom of the substrate 510. It may be configured by a manufacturing method in which the digital print layer 540 is generated only on the outside of the second flame barrier layer 522 provided.

S61 step:
The base material with the primer layer is passed through a UV digital printing machine to irradiate the UV lamp only on the outside of the first flame barrier layer, or only the outside of the base material with the second flame barrier layer. A step of irradiating a UV lamp to produce a digitally printed layer only on the outside of the first flame barrier layer or the outside of the second flame barrier layer, and then cooling to produce the final product.

The present invention will be described in detail below with reference to examples.

In Example 1, the silicon dioxide (SiO2) content of the present invention is 97%, the base material is a silica fabric having a melting temperature of 1,600 ° C. and a thickness of 0.7 mm. A 0.1 mm-thick flame-retardant layer, a 0.05-mm-thick primer layer, coated or coated with a flame-retardant layer composition composed of a two-part silicone resin, a flame retardant, a diluent, and an additive, and A fire-retardant material with a total product thickness of 0.85 mm according to the manufacturing method of steps S1 to S6 of the present invention, each comprising a digitally printed layer;
Comparative Example 1 is a 0.85 mm thick commercial shooting range print installation of prior art silica fabric coated with flame retardant silicone;
Comparative Example 2 is a 0.9 mm thick print installation of a commercial shooting range, which is a conventional woven fiberglass fabric coated with PVC resin;
Comparative Example 3 is a 0.85 mm thick printed installation of a commercial shooting range coated with PVC resin on a conventional PES woven fabric.

(Example 1)
producing a substrate of silica fabric with a silicon dioxide (SiO2) content of 97%, a melting temperature of 1,600° C. and a thickness of 0.7 mm, and;
Based on 100% by weight of the total flame barrier composition:
Specific gravity 1.1, hardness 8 (Shore A), elongation 1,500%, viscosity 110,000 mPa. A silicone resin A type in which a platinum catalyst is added to a solventless type silicone resin of s;
Specific gravity 1.1, hardness 8 (Shore A), elongation 1,500%, viscosity 70,000 mPa. 35% by weight of a heat-curing two-part silicone resin in which a silicone resin B type in which a cross-linking agent and a retarder are added to the solvent-free silicone resin of s is formed at a weight ratio of 1:1;
Based on 100% by weight of the flame retardant composition:
30% by weight of 100% pure aluminum hydroxide having a specific gravity of 2.5, a particle size of 1.2 μm and a melting point of 300° C., and 20% of magnesium hydroxide having a specific gravity of 2.5, a particle size of 1.2 μm and a melting point of 350° C. and having a purity of 100% 20% by weight of a phosphorus-based flame retardant with a specific gravity of 1.5, a particle size of 5.5 μm, a decomposition temperature of 300° C. and a phosphorus content of 30%; 10% by weight of a ceramic flame retardant composed of 99.1% by weight of Al2O3, 0.4% by weight of Na2O, 0.25% by weight of SiO2, and 0.25% by weight of Fe2O3, a specific gravity of 2.5, a particle size of 15 nm, 20% by weight of silica-based flame retardant made of 99.1% by weight of SiO2, 0.5% by weight of Al2O3, 0.2% by weight of Fe2O3, and 0.2% by weight of TiO2 with a melting point of 1,800°C. , 45% by weight of the flame retardant composition;
100% decamethylcyclopentasiloxane content of BTX Free type viscosity adjustment and dispersion diluent for silicone resin and flame retardant, 20% by weight of silicone diluent; After generating the overall composition of the flame layer;
Based on 100 parts by weight of the total composition of the flameproof layer,
Preparing a flameproof layer composition containing 5 parts by weight of a coloring agent containing polydimethylsiloxane and titanium dioxide;
After manufacturing a primer layer 530 made of 65% by weight methylcyclohexane, 20% by weight isopropyl acetate, 5% by weight methyl ethyl ketone, and 10% by weight silicon dioxide;
According to the production method of steps S1 to S6 of the present invention, flameproof layers with a thickness of 0.1 mm are formed on the top and bottom of the substrate (thickness of the first flameproof layer: 0.05mm, thickness of the second flameproof layer: : 0.05 mm), and a flameproof material having a total thickness of 0.85mm with a primer layer having a thickness of 0.05mm provided on the outside of the first flameproof layer.

(Comparative example 1)
A 0.85 mm thick commercial shooting range printing fixture was purchased commercially, which was a conventional silica fabric coated with flame retardant silicone.

(Comparative example 2)
0.9 mm thick commercial shooting range print fixtures coated with PVC resin on conventional fiberglass fabric were purchased commercially.

(Comparative Example 3)
Commercially purchased 0.85 mm thick commercial shooting range print fixtures were PVC resin coated on conventional PES woven fabric.

Results of test methods and comparative physical properties;
stomach. Product weight:
It was measured by the test method of ASTM D751, and the resulting values are shown in Table 2.

B. Cold resistance, weather resistance, abrasion strength:
1) Cold Resistance A test piece was prepared and measured according to the test method of ASTM D2136.
2) Weather Resistance A test piece was prepared and measured according to the test method of ASTM D6878.
3) Abrasion strength (abrasion resistance)
A test piece was prepared according to the test method of ASTM D3389 (H-18, 1 kg) and measured.

c. Flame resistance (flameproof):
Genho Co., Ltd.'s test method standard for measuring the flame retardancy (flameproofness) of products "WP-STM, 1-2)-(3) Test method for flame retardancy (flameproofness)" And according to the test method of "Fire Service Law CPAI-84", a test piece was manufactured and measured.
- Specimen: Coating area should be 20 cm wide x 20 cm long.
- Adjust the distance between the specimen and the gas torch to 15 cm. (The distance between the end of the crater of the gas torch and the specimen is 5 cm)
- Heat for 3 minutes after ignition of the gas torch.
-criterion:

D. Print processability and print sharpness:
- Printing Processability After UV digital printing, it was checked whether the cured digital printing layer was peeled off using the Cross Hatch Cutter test method.

As shown in Tables 1 and 2 above, Example 1 of the present invention has flame retardancy (flame resistance): Grade 1/specimen ignition and no specimen damage compared to the comparative example;
Cold resistance (-20, -30, -40°C): no cracks, weather resistance (200, 500, 1,000 hours), and abrasion resistance: lowest color difference (ΔE) and weight loss measured , the physical properties were found to be the best;
In particular, UV digitally printed digital printing layers can be easily digitally printed and clearly printed on the outside of the flameproof layer and the primer layer respectively provided on the upper and lower sides of the substrate;
Although the product weight is lighter than the comparative examples, it was found to have the best physical properties such as flame resistance (flame resistance), cold resistance, weather resistance, and abrasion strength (abrasion resistance).

In addition, the printed installation of the commercial shooting range in which the conventional silica fabric was coated with flame-retardant silicone, which is Comparative Example 1,
Flame resistance (flame resistance): Class 2 when the test piece ignites, and cold resistance (-40°C): cold resistance is reduced due to cracks, and weather resistance and abrasion strength (abrasion resistance) are also improved. degraded,
It was found that the printing processability was partially deteriorated and the digital printing layer was partially peeled off during UV digital printing, which caused problems in use;
The printing installation in which the conventional glass fiber woven fabric is coated with PVC resin, which is Comparative Example 2, and the printing installation in which the conventional PES woven fabric is coated with PVC resin, which is Comparative Example 3,
Flame resistance (flame resistance): Class 3 due to ignition and cracking of test piece, weather resistance and wear strength (abrasion resistance) are significantly reduced,
It was found that the printing workability was remarkably deteriorated and the digital printing layer was easily peeled off during UV digital printing, resulting in many problems in use.

E. Other physical property items 1) Cost reduction effect: The product composition and product weight (the weight of Example 1 was multiplied by 1, and the weight of Comparative Examples 1, 2, and 3) were compared and judged, and the resulting values are shown in Table 3.
2) Workability: The workability of the step of forming the flameproof layer and the digital printing layer on the top and bottom of the substrate was determined, and the results are shown in Table 3.

As shown in Table 3 above, Example 1 of the present invention is
It was found that the silica base material of the present invention and the silicone of the present invention are coated, the weight of the product is reduced, the cost is greatly reduced, and the workability during production is excellent;
In Comparative Example 1, the silica substrate and silicone were coated, and no pollutants were generated. It has been found that the construction in which each flameproof layer is provided reduces the workability during manufacturing;
In Comparative Examples 2 and 3, PVC (polyvinyl chloride) resin is coated on the top and bottom of the base material, so that environmental hormones, which are pollutants, are discharged, and after use, it cannot be used as a recycled raw material. At the time of disposal, pollutants are discharged, causing problems of environmental pollution:
It was found that the weight is too heavy, the cost rises significantly, and the flameproof layer is provided on the upper and lower parts of the base material, and the workability at the time of manufacturing is significantly reduced due to the generation of pollutants.

Although the present invention has been described in detail with reference to specific examples, the present invention is not limited to the above-described examples, and various is capable of deformation;
In addition, the printed installation made of the fire-retardant material used in the present invention and printed with guide characters, pictures, and numbers including the target of the shooting range or the number of shooting points is one preferred embodiment of the present invention. Naturally, the content of the same technical category as can be used for other fireproof materials.

500 Asphyxiation extinguishing cloth of the present invention (asphyxiation extinguishing cloth for fire suppression)
510 substrate 520 flame barrier layer 521 first flame barrier layer 522 second flame barrier layer 530 primer layer 540 digital printing layer 10 prior art asphyxiation fire fighting cloth 100 fire fighting cloth 110 cloth body 120 handle 130 nozzle

Claims (4)

A base material (510) composed of silica fabric of a printed installation on which guide characters, pictures, and numbers including targets or shooting points in a shooting range are printed; and two liquids provided above and below the base material a flame-retardant layer (520) coated or coated with a flame-retardant layer composition made up of a silicone resin, a flame-retardant, a diluent, and an additive; A flame retardant material comprising: a primer layer (530) containing ∼10% by weight ;
The flameproof layer (520) is
Based on 100% by weight of the total flame barrier composition:
Specific gravity 1.1, hardness 5 to 45 (Shore A), elongation 150 to 1,500%, viscosity 20,000 to 350,000 mPa. and a silicone resin to which 0.01 to 0.1 parts by weight of a platinum catalyst, which is a catalyst for accelerating the curing reaction of the silicone resin, is added based on 100 parts by weight of the silicone resin. Type A and
Specific gravity 1.1, hardness 5 to 45 (Shore A), elongation 150 to 1,500%, viscosity 20,000 to 350,000 mPa. s range of solvent-free type silicone resin, based on 100 parts by weight of silicone resin, when mixed with silicone resin A type, to prevent rapid curing action (methyl, hydrogen) and having dimethyl substituents (siloxane and Silicone) 0.5 to 7.5 parts by weight of a crosslinker and 0.5 to 4.5 parts by weight of a retarder of 1-ethynyl-1-cyclohexanol were added to the silicone resin B type at a ratio of 1:1. 30 to 75% by weight of a heat-curing two-part silicone resin prepared by weight;
It is a flame retardant whose role is to delay ignition and prevent the spread of combustion:
Based on 100% by weight of the flame retardant composition,
5 to 30% by weight of aluminum hydroxide having a specific gravity of 2.2 to 2.7, a particle size of 1 to 30 μm, a melting point of 300° C. and a purity of 99 to 100%;
20 to 25% by weight of magnesium hydroxide having a specific gravity of 2.2 to 2.5, a particle size of 1.0 to 5 μm, a melting point of 350° C. and a purity of 94 to 100%;
20 to 25% by weight of a phosphorus-based flame retardant having a specific gravity of 1.0 to 1.5, a particle size of 3 to 15 μm, a decomposition temperature of 300 to 400° C., and a phosphorous content of 10 to 35%;
Al2O3 99.1-99.7% by weight, Na2O 0.2-0.4% by weight, specific gravity 3.75-3.9, particle size 0.02-3 μm, melting point 2000-2500°C , 0.05 to 0.25% by weight of SiO2 and 10 to 20% by weight of a ceramic flame retardant made of 0.05 to 0.25% by weight of Fe2O3;
SiO2 99.1 to 99.8% by weight, Al2O3 0.1 to 0.5% by weight, Fe2O3 0.05 having a specific gravity of 2 to 2.2, a particle size of 7 to 40 nm, and a melting point of 1,600 to 1,800°C. 10 to 45% by weight of a flame retardant composition made up of 20 to 25% by weight of a silica-based flame retardant made up of 0.05 to 0.2% by weight of TiO2;
Viscosity control and dispersion diluent for silicone resins and flame retardants:
BTX Free type viscosity 2.1 cP (25° C.) decamethylcyclopentasiloxane content 30-100% by weight, silicone diluent 15-25% by weight;
Based on 100 parts by weight of the total composition of the flameproof layer,
Colorant for coloring the flame barrier layer:
A flame retardant layer composition containing 3.0 to 10 parts by weight of a coloring agent containing 15 to 25% by weight of polydimethylsiloxane and 20 to 30% by weight of titanium dioxide is applied to the upper and lower parts of the substrate (510). A fire-retardant enhanced, digitally printable flame barrier material (500), characterized in that it comprises a flame barrier layer (520) that is applied or coated. A method for manufacturing a fire-retardant material that can be digitally printed with enhanced flame-retardant properties for printed installations on which guide letters, pictures, and numbers including targets or shooting points are printed in shooting ranges,
S1 step: manufacturing a substrate that is a silica fabric;
S2 step: A step of forming a first flame-retardant layer on top of the substrate by applying a flame-retardant composition having a viscosity in the range of 1,000 to 300,000 cP and drying with hot air after coating;
S3 step: A step of forming a second flame-retardant layer on the bottom of the substrate by applying a flame-retardant composition having a viscosity ranging from 1,000 to 300,000 cP and drying with hot air after coating;
S4 step: passing the substrate on which the first and second flame retardant layers are formed through an oven, and cooling after re-drying the first and second flame retardant layers;
S5 step: a step of coating or applying a primer layer on the outside of the first flame-retardant layer of the substrate on which the first and second flame-retardant layers are formed;
Step S6: The substrates with the primer layer formed thereon are each passed through a UV digital printing machine, and a digital printing layer is formed by UV lamp irradiation on the outside of the substrate with the primer layer formed thereon, followed by cooling and final printing. 2. A method of manufacturing a flame retardant material (500) according to claim 1, wherein the flame retardant enhanced digital printable material (500) is manufactured by the step of manufacturing a product. The S6 step is
3. The manufacturing method according to claim 2, wherein the manufacturing is performed by replacing step S61 below.
S61 step:
The base material with the primer layer is passed through a UV digital printing machine to irradiate the UV lamp only on the outside of the first flame barrier layer, or only the outside of the base material with the second flame barrier layer. A step of irradiating a UV lamp to produce a digitally printed layer only on the outside of the first flame barrier layer or the outside of the second flame barrier layer, and then cooling to produce the final product. The coating method of the S2 and S3 steps is
3. The manufacturing method according to claim 2, characterized in that it is a dipping method or a circular screen method.

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