TWI410326B - Polyolefine tarpaulin composition and preparing method thereof - Google Patents

Abstract

The present invention relates to a polyolefin tarpaulin composition and a preparation method thereof (thermoplastic polyolefin-based tarpaulin and preparation process thereof), wherein the tarpaulin for digital printing of the present invention is provided with a reinforced structure with enhanced strength on the surface of the tarpaulin, which represents a superior processing property allowing the digital print sheet to be easily coupled to the surface of the tarpaulin. Due to the formation of a singular number of the digital print surface, the digital print surface is clearly printed to discriminate, so that the cost is reduced and the work efficiency is improved. At the same time, the polyolefin tarpaulin and the preparation method thereof (thermoplastic polyolefin-based tarpaulin and preparation process thereof) in this invention prevents crack states due to the elasticity of base material, as well as reinforces cold-proof, weather-ability, and abrasion resistance. Especially, the article and method of this invention can prevent the generation of pollutant, which is a problem in PVC tarpaulin production method of the prior arts, by creating eco-friendly material which gives no harm to a human body, and can enable 100 % recycling and reusing for reducing the costs.

Description

Polyolefin-based waterproof cloth and manufacturing method thereof

The present invention relates to a polyolefin-based tarpaulin and a method of manufacturing the same, and more particularly to a thermoplastic polyolefin-based tarpaulin and a method of manufacturing the same.

Generally, in the surface of a tarpaulin of a fibrous material substrate, a digital printing machine directly prints a digital printing surface such as an advertisement or a printed content, or a digital printing sheet printed with the digital printing surface printed thereon for digital printing. Waterproof cloths are commonly used to print digital printing surfaces using PVC waterproof cloth. Because of the inherent physical properties (such as polarity) of PVC materials, the digital printing surface is easier to print on the substrate during printing.

However, as shown in Fig. 10, the tarpaulin (300) of the prior art uses a tarpaulin in which the fiber is impregnated with PVC or PE resin (312) as a substrate.

The tarpaulin of the prior art includes: on the upper and lower surfaces of the substrate (310), printed content such as slogans or advertising patterns as digital printing surfaces (313, 314) are each printed from a digital printing machine to form a double printing structure for digital printing waterproofing Cloth (300); or on the upper and lower surfaces of the substrate (310), advertisement contents such as slogans or advertisement patterns are printed on the printed sheets of the sheets as digital printing surfaces (313, 314), that is, digital printing sheets (315, 316). Laminated and joined double-joined structure digital printing tarpaulin (300), a plurality of identical digital printing surfaces (313, 314) are respectively printed on the upper and lower surfaces of the substrate (310), or digital printing sheets (315, 316) Each is laminated and joined in a double structure.

In the prior art, the advertising contents are clearly displayed by a plurality of printing surfaces (313, 314) during the day, and a plurality of printing surfaces (313, 314) or a plurality of digital printing are irradiated by an illumination source located on the back of the tarpaulin (300) at night. On the thin plates (315, 316), the structural composition of the advertisement contents is clearly displayed to the outside, and thus problems such as low operability and increased cost occur.

In particular, tarpaulins made of PVC are not recyclable after use due to the emission of harmful substances (such as environmental hormones), environmental pollution caused by discharge of harmful substances after scrapping, and plasticization of plasticizers, resulting in poor printing or weather resistance. Down, there have been problems with product color change.

PE material tarpaulin is difficult to adsorb digital printing ink due to its material properties. It is difficult to form a digital printing surface on the surface of the substrate, and it is composed of a simple PE material that does not contain elastic fiber components. The product is hard due to high hardness. Problems such as low operability and cold resistance, reduced weather resistance, and shortened service life have occurred.

Therefore, in the tarpaulin for digital printing of the present invention, due to the tarpaulin and the product composition of the present invention and the manufacturing method thereof, the digital printing surface is formed on the surface of the tarp with a structure for enhancing the adhesion, so that the easy printing or the digital printing sheet can be easily bonded. The surface of the tarpaulin is more excellent in workability, and the structure of forming a single digital printing surface makes the digital printing surface more vivid, the processing property is good, the digital surface printing is clear and easy to recognize, and the substrate is soft and elastic, which not only prevents cracking, but also prevents cracking. The wear resistance, cold resistance and weather resistance can also be improved. At the same time, the tarpaulin product and product composition of the invention are environmentally friendly products, can prevent the generation of pollution-causing substances and are completely harmless to the human body, and can be 100% recycled as raw materials after use. Thereby achieving the goal of reducing costs.

Accordingly, the present invention provides a polyolefin tarpaulin and a method of manufacturing the same, and, in particular, to a thermoplastic polyolefin-based tarpaulin and a method of manufacturing the same, the tarpaulin for digital printing of the present invention having a reinforcing structure having a reinforcing adhesive force on the surface layer thereof This represents better processability, that is, the digital printed sheet can be easily joined to the surface of the tarpaulin. Due to the structure of the single digital printing surface, the digital printing surface is printed clearly and easily recognized, thereby reducing cost and improving efficiency.

Meanwhile, the polyolefin tarpaulin of the present invention and the method for producing the same can not only prevent cracking but also improve cold resistance, weather resistance, and abrasion resistance due to the elasticity of the substrate. In particular, the products and methods of the present invention prevent the generation of contaminants as in the production of PVC tarpaulins in the prior art, and the present invention produces environmentally friendly materials that are completely harmless to the human body and can be 100% recycled to achieve a reduction. Cost purpose.

According to the polyolefin tarpaulin of the present invention and a method of manufacturing the same, the tarpaulin for digital printing of the present invention has a reinforcing structure having a reinforcing adhesive force on the surface layer thereof, which means better workability, that is, the digital printing sheet can be easily combined with The surface layer of the tarpaulin is joined. Due to the structure forming a single digital printing surface, the digital printing surface is printed clearly and easily recognized, thereby reducing cost and improving efficiency.

Meanwhile, the polyolefin tarpaulin of the present invention and the method for producing the same can not only prevent cracking but also improve cold resistance, weather resistance, and abrasion resistance due to the elasticity of the substrate.

In particular, the products and methods of the present invention prevent the generation of contaminants as in the production of PVC tarpaulins in the prior art, and the present invention produces environmentally friendly materials that are completely harmless to the human body and can be 100% recycled to achieve a reduction. Cost purpose.

The present invention relates to a polyolefin tarpaulin and a method of manufacturing the same, and more particularly to a thermoplastic polyolefin-based tarpaulin and a method of manufacturing the same, wherein the tarpaulin for digital printing has a reinforcing structure with a strong adhesive force on the surface layer, which represents better The processability, that is, the digital printing sheet can be easily joined to the surface layer of the tarpaulin.

Due to the structure of the single digital printing surface, the digital printing surface is printed clearly and easily recognized, thereby reducing cost and improving efficiency.

Meanwhile, the polyolefin tarpaulin of the present invention and the method for producing the same can not only prevent cracking but also improve cold resistance, weather resistance, and abrasion resistance due to the elasticity of the substrate.

In particular, the products and methods of the present invention prevent the generation of contaminants as in the production of PVC tarpaulins in the prior art, and the present invention produces environmentally friendly materials that are completely harmless to the human body and can be 100% recycled to achieve cost. Reduce the purpose.

The composition of the tarpaulin of the present invention includes:

1. A fiber, that is, a substrate in which a PP resin is impregnated in a filament or a nonwoven fabric;

2. The upper and lower surfaces of the substrate are joined to the upper and lower films composed of the composition of the present invention;

3. A layer of adhesive coated with a binder on the upper film surface;

4. A surface treatment agent layer coated with a surface treatment agent on the surface of the adhesive layer constitutes the tarpaulin fabric of the present invention;

5. A digital printing sheet or a digital printing surface joined and provided as a processed product tarpaulin of the present invention, the digital printing sheet having a digital printing surface printed thereon, the digital printing surface being directly printed on the tarpaulin by a digital printing machine The upper portion of the surface treatment layer of the fabric is processed.

The embodiments of the present invention are further explained below in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an exploded perspective view of a woven fabric unprocessed fabric of the present invention.

Figure 2 is an exploded perspective view of the tarpaulin fabric of the processed product of the present invention, wherein the tarpaulin unprocessed fabric is printed with a digital printing surface.

3 to 5 are exploded perspective views of a tarpaulin according to another embodiment of the present invention.

As shown in FIG. 1, the thermoplastic polyolefin-based tarpaulin fabric (100a) of the present invention is composed of a substrate, a thermoplastic polyolefin-based composite resin, a thermoplastic polyolefin-based elastic fiber, a binder layer, and a surface treatment agent layer. as follows.

The substrate is formed by impregnating a PP resin (12) with a fineness of 150 to 3000 denier or a nonwoven fabric; the upper and lower surfaces of the substrate are thermoplastic polyolefin-based composite resin (21, 31), which is a a main material which is elastic in the substrate to prevent cracking and to improve cold resistance and wear resistance, and at the same time, to make a printing ink of a digital printing surface (60: see FIG. 2) clearly printed; thermoplastic polyolefin-based elastic fiber and upper and lower film (20, 30) bonding, the elastic fiber is composed of a filler as an auxiliary material (22, 32), a UV stabilizer as an additive, an antioxidant, an antistatic agent, and a polyurethane-nitrile group coated with a solid powder of 5 to 20%. The adhesive layer (40) of the acrylate adhesive, the adhesive layer is directly printed on the surface of the upper film (20) by a digital printing machine or printed on the digital printing surface (60: see Fig. 2), or printed on the bonding sheet. When the digital printing sheet (70: see Fig. 3) of the digital printing surface (60) is used, the adhesion of the digital printing surface (60) or the digital printing sheet (70) can be improved; the surface treatment agent of the surface layer of the adhesive layer (40) a layer containing a printed digital printing surface (60) that imparts polarity and thereby Brush processability and weather resistance of a fluorine - acrylic powder resin solid component of 20 to 30%.

The thermoplastic polyolefin-based elastic fiber constituting the upper and lower films (20, 30) is composed of the following components based on the sum of the contents of all the components of the upper and lower films of 100% by weight (including thermoplastic polyolefin-based resin) The thermoplastic polyolefin-based elastic fiber resin (TPE resin) comprises 10 to 30 wt% of polypropylene, 15 to 25 wt% of polyethylene, and 55 to 65 wt% of rubber): 65 to 85 wt% of a main material, that is, a thermoplastic polyolefin-based composite a resin comprising a linear low-density polyethylene resin having a melt index of 0.8 to 1.2 and a density of 0.918 to 0.922 and 40% to 60% by weight of each of the above-mentioned elastic fiber resins; and 14.7 to 30% by weight of talc or carbonate as a filler. Calcium; 0.1 to 2.0% by weight of azelaic acid diester series or polytetramethylbutylamine series of UV stabilizers; 0.1 to 1.5% by weight of phosphite as a antioxidant and hydroxylamine series of phenol-free antioxidants; 0.1 to 1.5 Wt% as a monoglyceride of an antistatic agent.

The adhesive layer (40) is 5-20% by weight of a urethane-cyanoacrylate resin in a solvent of methyl ethyl ketone (MEK) or dimethylformamide (DMF), ethylene glycol diacetate (EA). Among them, one or a mixture of one or more solvents is dissolved in 80 to 95% by weight to form a binder of 5 to 20% of the above resin solid powder.

The surface treatment agent layer (50) is a solvent in which 20 to 30% by weight of a fluoro-acryl-based resin is selected from one or a mixture of one or more of methyl ethyl ketone (MEK) or dimethylformamide (DMF). After being dissolved in 70 to 80% by weight, the surface treatment agent is composed of 20 to 30% of the solid powder.

The composition may be 100% by weight of the upper and lower film (20, 30) thermoplastic polyolefin-based elastic fiber as a flame retardant in the antimony trioxide (Sb2O3) or Mg(OH)2 series of Magnesium Hydroxide (hydrogen). Among the bromine series Ethylene bis-tetrabromophthalim (vinyl-di-tetrabromophenyl), one or more flame retardants in one or more states are added in an amount of 5 to 45 wt% to form a flame-resistant upper and lower portions. The film may be added with 0.5 to 5.0% by weight of a coloring agent, that is, black carbon black or blue blue blue.

The thermoplastic polyolefin-based elastic fiber resin (TPE resin) can impart elasticity to the substrate, prevent cracking due to elasticity, improve cold resistance and wear resistance, and can also be used to clearly print the ink on the digital printing surface on the surface. the use of.

If a thermoplastic polyolefin-based elastic fiber resin is used alone, a viscous phenomenon may occur to deteriorate workability. In order to prevent this, the composite resin composition of the linear polyolefin resin in the thermoplastic polyolefin-based elastic fiber resin is 40 to 60% by weight of the thermoplastic polyolefin-based elastic fiber resin, and 40 to 60% by weight of the linear low-density polyethylene resin. The inventive thermoplastic polyolefin-based composite resin.

Preferably, the thermoplastic polyolefin-based elastic fiber resin and the linear low-density polyethylene resin each constitute a thermoplastic polyolefin-based composite resin in an amount of 50% by weight, and the sum of the contents of all the components of the upper and lower films is 100% by weight. At the time, 65 to 85 wt% of a thermoplastic polyolefin-based composite resin is used.

As shown in FIG. 2, the tarpaulin fabric (100a: see FIG. 1) of the present invention consisting of a substrate (10) and an upper and lower film (20, 30), a binder layer (40), and a surface treatment agent layer (50). On the surface of the surface treatment agent layer (50), the digital printing surface (60) is directly printed on a digital printing machine, and the structure having the digital printing surface of the advertisement or the content is printed, and the waterproof fabric (100) which is the processed product of the present invention is formed.

Next, another embodiment of the thermoplastic polyolefin-based tarpaulin of the present invention will be carried out.

As shown in FIG. 3, the tarpaulin fabric (100a, see FIG. 1) of the present invention consisting of a substrate (10) and an upper and lower film (20, 30), a binder layer (40), and a surface treatment agent layer (50). On the surface of the surface treatment agent layer (50), a printing sheet (71) printed on an image or a printed surface, that is, a digital printing surface (72), that is, a digital printing sheet, is bonded to form a tarpaulin (100) which is a processed product of the present invention.

As shown in Fig. 4, in order to protect the digital printing surface (60) composed of Fig. 2, a protective film (80), which is a bonding film, may be bonded to the surface of the digital printing surface (60).

As shown in FIG. 5, the digital printing surface (60) composed of the above FIG. 2 or the digital printing sheet (70) composed of FIG. 3 can be formed separately on the surface layers of the upper and lower films (20, 30) to have a double-structured digital printing surface. (60, 60') or digital printing sheet (70, 70').

The method for producing the thermoplastic polyolefin-based tarpaulin of the present invention will be specifically explained below based on the drawings.

Stage 1: Substrate manufacturing stage:

The PP resin is coated on both sides of a filament or nonwoven fabric having a fineness of 150 to 3000 denier to produce a substrate (10) having a PP resin having a thickness of 0.1 to 1.2 mm coated on the filament or the nonwoven fabric.

Stage 2: Upper and lower film manufacturing stages:

As shown in FIG. 7, the thermoplastic polyolefin-based elastic fiber resin (TPE resin) comprises 10 to 30% by weight of polypropylene, 15 to 25 wt%, based on 100% by weight of the sum of all the components of the upper and lower films. % of polyethylene and 55 to 65 wt% of rubber, the composition of the film is: 65 to 85 wt% of a main material, that is, a thermoplastic polyolefin-based composite resin having a melt index of 0.8 to 1.2 and a density of 0.918 to 0.922. Linear low density polyethylene resin (LLD PE) and the above elastic fiber resin are each composed of 40 to 60% by weight; 14.7 to 30% by weight of talc or calcium carbonate as a filler; 0.1 to 2.0% by weight of azelaic acid diester series Or polytetramethylbutylamine series ultraviolet stabilizer; 0.1 to 1.5% by weight of phosphite and hydroxylamine series phenol-free antioxidant as antioxidant; 0.1 to 1.5% by weight of monoglyceride as antistatic agent.

The above materials are put into an internal mixer (211), and after mixing for five minutes at 140 to 160 ° C, the mixture is transferred to a kneading machine (212) having a preheating temperature of 140 to 160 ° C, for the first time at 140 to 160. After mixing for 2 minutes at ° C, the mixture was transferred to a preheating roll (213) having a preheating temperature of 140 to 160 ° C, and the second time was kneaded at 140 to 160 ° C for 2 minutes and then transferred to a calender (214).

After forming a film having a thickness of 0.1 to 0.4 mm in a lower roll (215) preheated to 150 to 170 ° C by a calender, rolling and cooling are performed by an embossing roll (216) and a cooling roll (217) to complete the present invention. Upper (20) or lower film (30).

Stage 3: The stage of joining the upper and lower films to the substrate:

As shown in Fig. 8, the substrate manufactured in the first stage is loaded to the loading roll (1), and the upper and lower films (20, 30) manufactured in the second stage are each loaded to the loading roll (2, 3). After that, the substrate (10) is preheated to a substrate preheating roll (222) of 100 to 120 ° C and moved to the main water squeezing roll (224); the upper film (20) is preheated to the upper part of 70 to 80 ° C. The film preheating roll (223) is moved to the main water squeezing roll (224); the lower film (30) is moved to the main squeezing roll (224) by a lower film preheat roll (221) preheated to 80-90 °C.

In the above-mentioned main water squeezing roller (224) preheated to 140 to 160 ° C, the upper and lower films (20, 30) are laminated on the lower portion and the lower portion of the substrate (10), and the layers are joined and then embossed. The roll (225) and the cooling roll (226) are subjected to final rolling and cooling treatment to obtain a laminate product in which upper and lower films having a thickness of 0.3 to 2.0 mm are joined to the substrate (10).

Stage 4: Adhesive and surface treatment coating stage:

As shown in Fig. 9, a urethane-nitrile acrylate adhesive (235) loaded in a hub (234) is applied to a gravure 1 coating apparatus (231), i.e., a 120-mesh coating roll (233), which is coated by 120 mesh. The roller is a 1 square inch coating roll engraved with 120 gravure grooves for coating thickness control, and the above-mentioned laminate product is coated with a binder solid powder at a thickness of 0.01 to 0.03 mm at the upper or lower portion of the laminate product. It is a binder layer (40) of 5 to 20 μm.

After coating, it is moved to a dryer (237) having a temperature of 60 to 80 ° C and a transfer speed of 10 to 20 m/min for drying, and then moved to a gravure coating device (232), that is, a 70-mesh coating roller (233'). The 70 mesh coating roll, that is, the 1 square inch coating roll, is engraved with 70 gravure grooves for coating thickness control, and the 70 mesh coating roll (233') is coated on the wheel hub (234'). a surface treatment agent (236) composed of a fluoro-acrylaldehyde-based resin, and then applying a surface treatment agent for the first application on the surface of the above-mentioned adhesive layer (40), that is, applying a surface treatment agent solid powder to 20 A surface treatment agent layer (50) of ～30 μm.

After coating with the surface treatment agent, it is dried on a dryer (237) having a temperature of 60 to 80 ° C and a transfer speed of 10 to 20 m/min, and then re-rolled onto the gravure 2 coating device (232). The second and third application of the surface treatment agent (50) was carried out in the same manner as described above, and the thickness of the surface treatment agent layer was set to 0.025 to 0.07 mm, that is, a tarpaulin fabric (100a) having an overall thickness of 0.335 to 2.1 mm was obtained.

*1st coating: 1st (120 mesh adhesive) + 2nd (70 mesh surface treatment agent)

*2nd coating: 3rd (70 mesh surface treatment agent) + 4th (70 mesh surface treatment agent)

*3rd coating: 5th (70 mesh surface treatment agent) + 6th (70 mesh surface treatment agent)

Stage 5: Printing the digital printing surface or joining the digital printing sheet stage:

The tarpaulin fabric (100a) obtained in the above fourth stage is put on a digital printing machine, and the digital printing surface (60) is directly printed on the surface layer of the surface treatment agent layer (50), or the surface treatment layer (50) is bonded on the surface layer. A printed sheet printed with a digital printing surface (60), that is, a digital printing sheet (70), is finally obtained as a processed product, that is, a tarpaulin (100).

Stage 6: Adhesive film stage on the surface of the digital printing surface (optional)

The bonding protective film (80), which is a surface of the digital printing surface (60) of the tarpaulin obtained in the fifth stage as described above, is bonded to prevent the digital printing surface from being scratched or impacted.

Further, on the surface layer of the lower film (30), a digital printing surface (60) or a digital printing sheet (70) may be additionally laminated and bonded to produce a digital printed surface (60, 60') of a double structure or a digital structure of a double structure. Printed sheets (70, 70').

The surface treatment agent layer (50) of the above fourth stage is coated with a surface treatment agent composed of 70 to 30 times of a fluoro-acrylic resin, which is coated on the hub (234'), in addition to the 70 MESH application rolls of 70 gravure grooves. In addition to the gravure coating process, the surface treatment agent layer (50) of the above surface treatment agent (236) may be applied by a knife coater (KNIFE COATER) or a comma coater (COMMA COATER) process.

The thermoplastic polyolefin-based tarpaulin of the present invention has the following characteristics due to the above-described product composition, the constituent materials of the upper and lower films, and the production method.

In terms of material properties, the PVC tarpaulin of the prior art has no physical polarity due to the inherent physical polarity of the substrate, and the composition of the same product and the composition of the upper and lower films and the manufacturing method thereof are not easily adsorbed and printed on the surface of the substrate. .

The upper and lower films (20, 30) composed of the present invention impart elasticity to the substrate (10) to prevent cracking, enhance cold resistance and wear resistance, and vividly print the printing ink of the digital printing surface (60) on the surface. Composition.

In order to improve the adhesion of the digital printing surface (60) or the digital printing sheet (70), a binder layer (40) of a urethane-nitrile acrylate adhesive (235) having a solid powder of 5 to 20% is applied. Digital printing surface printing or digital printing sheet bonding is easier.

The surface layer of the adhesive layer (40) imparts polarity when printing the digital printing surface (60), and has 20 to 30% of a surface treatment agent layer of a solid powder composed of a fluorine-acrylic resin for improving printing processability and weather resistance ( 50).

That is, there is no inherent physical polarity, and the advertisement or the published content, that is, the digital printing surface (60) is easily printed.

Rather than a plurality of background art, but consisting of a single digital printing surface (30), a single digital printing surface (60) or a single digital printing sheet (70) is bonded to the surface layer of the surface layer (50) of the tarpaulin of the present invention, during the daytime. The content of the advertisement is exposed to the outside, and the illumination source on the back of the tarpaulin (100) is irradiated to a single digital printing surface (60) or a single digital printing sheet (70) at night, and the structure of the advertising content is clearly displayed. Identification has also improved operability and cost reduction.

In particular, the use of environmentally-friendly substances prevents the release of harmful substances from PVC tarpaulins in the background art, and is harmless to the human body. After use, 100% can be recycled as recycled raw materials, thereby achieving the goal of reducing costs.

PE material tarpaulin is difficult to adsorb digital printing ink due to its material properties. It is difficult to form a digital printing surface on the surface of the substrate. It is composed of pure PE material without elastic fiber component. The product is hard due to high hardness. Problems such as low operability and cold resistance, low weather resistance, and shortened service life.

And since the above substrate (10) belongs to a PP fabric, in order to solve the problem that the substrate (10) and the upper and lower films (20, 30) are heated and deformed in the operation of the laminate, and the adhesion is improved, the upper and lower portions are operated in the operation of the laminate. The film preheating rolls (221, 223), the substrate preheating rolls (222), and the main water squeezing rolls (224) are all subjected to laminating operation at a temperature of 70 to 160 ° C, and are composed of different temperatures in accordance with respective characteristics to prevent The thermal deformation in the operation of the laminate, and the adhesion is better improved.

Further explanation will be given below in conjunction with the embodiments.

Embodiment 1 is composed of an upper and lower film composed of a substrate of the present invention and an upper and lower film formation, a binder layer, and a surface treatment layer. The upper portion of the surface treatment layer produced by the manufacturing method of the present invention is directly printed by digital printing machine. Waterproof cloth.

Embodiment 2 is composed of an upper and lower film composed of the substrate of the present invention and an upper and lower film formation, a binder layer, and a surface treatment layer. The upper portion of the surface treatment layer produced by the manufacturing method of the present invention is bonded to a digital surface printed with a digital printing surface. A tarpaulin for printing thin sheets.

Comparative Example 1 is a commercially available PVC tarpaulin in which a base material coated with a PVC resin on an original PET woven fabric and a digital printed surface on the upper and lower sides of the substrate are printed in a double structure.

Comparative Example 2 is a commercially available PE tarpaulin coated with a LDPE resin on the original HDPE YARN woven fabric and a printed surface on the upper and lower sides of the substrate.

(Example 1)

A PP filament strength of PP resin was coated on both sides of a 300 dan fineness filament having a thickness of 0.25 mm.

50% by weight of TPE resin composed of 20% by weight of PP, 20% by weight of PE, 60% by weight of rubber, and 79% by weight of TPE composite resin composed of 50% by weight of linear low-density PE resin.

16wt% filler talc, 0.6wt% sebacic acid diester series UV stabilizer, 0.2wt% phenol-free antioxidant, 0.2wt% antistatic agent monoglyceride, put into the mixer, After mixing for five minutes at 160 ° C, the mixture was transferred to a kneading machine at a preheating temperature of 155 ° C. After the first mixing at 155 ° C for 2 minutes, it was transferred to a preheating roll at a preheating temperature of 155 ° C for the second time. After mixing at 155 ° C for 2 minutes, it was transferred to a calender.

After a film having a thickness of 0.3 mm was formed in a lower roll preheated to 160 ° C by a calender, calendering and cooling were carried out by an embossing roll and a chill roll to complete an upper or lower film having a thickness of 0.2 mm of the present invention.

The substrate is loaded onto the loading roller 1, and the upper and lower films are respectively loaded onto the loading rollers 2, 3, and the substrate is preheated to a main water squeezing roller by a preheating roller of 100 ° C; the upper film is preheated at 75 ° C. The upper film preheating roller is moved to the main water squeezing roller; the lower film is preheated to the lower film preheating roller at 87 ° C and then moved to the main water squeezing roller; the above preheating to the main squeezing roller at 155 ° C, in the substrate The upper and lower laminated upper and lower films are subjected to lamination treatment, and finally subjected to final calendering and cooling treatment through an embossing roll and a cooling roll to complete a laminate product having a thickness of 0.65 mm on the substrate and a lower film.

Coating on a 120 MESH coating roll with 120 gravure grooves to adjust the thickness of the coating in a 1 inch area of the gravure 1 coating apparatus, ie, the coating roll, coated with a polyurethane-cyanoacrylate bonded in the hub The agent and the above-mentioned laminate product are coated with a binder layer of 5 to 20 μm in a thickness of 0.015 mm at the upper or lower portion of the laminate product.

After coating, it was moved to a dryer with a temperature of 70 ° C and a transfer speed of 15 m/min for drying, and then moved to a gravure 2 coating apparatus, that is, an area of 1 mm of the coating roll, and 70 sheets of the coating thickness were adjusted. On the 70 MESH coating roller of the gravure groove, and the surface treatment agent composed of the fluorine-acrylic resin-based resin loaded on the hub by the 70 MESH coating roller, the surface of the above-mentioned adhesive layer is coated once at a thickness of 0.035 mm. The surface treatment agent solid powder is a surface treatment agent layer of 20 to 30 μm.

After the surface treatment agent is applied, it is dried on a dryer having a moving temperature of 70 ° C and a transfer speed of 15 m/min, and then re-rolled into a gravure 2 coating apparatus, and coated with secondary and tertiary surface treatment agents in the same manner as described above. The layer, that is, the tarpaulin fabric having an overall thickness of 0.7 mm of the present invention is completed.

The tarpaulin fabric is put on a digital printing machine, and the digital printing surface is directly printed on the surface layer of the surface treatment layer, that is, the processed product of the present invention, that is, the tarpaulin is finally completed.

(Example 2)

The upper portion of the surface treatment layer of the tarpaulin fabric manufactured in the same manner as in the above Example 1 was laminated, and the digital printing sheet having a digital printing surface printed with a thickness of 0.1 mm was laminated, and finally, the processed product of the present invention having an overall thickness of 0.8 mm was completed. Tarpaulin.

(Comparative Example 1)

A PVC tarpaulin having a thickness of 0.7 mm composed of a base material coated with a PVC resin on the original PET woven fabric and a printed surface having a double structure on the upper and lower portions of the substrate was purchased commercially.

(Comparative Example 2)

A substrate coated with LDPE resin on the original HDPE YARN woven fabric and a PE tarpaulin having a thickness of 0.7 mm on the upper and lower sides of the substrate printed on the digital printing surface were purchased on the market.

Test method and comparative substance characteristic value results

A. Printing ability test (adhesiveness / sharpness / dryness)

The adhesiveness/freshness/dryness was measured according to the WOPUNG Co., Ltd. test method standard "WPS-06-03-101 Printing Ability Test" using the DGI XP-2506D digital printing machine, and the physical property result values are shown in Table 1.

1) Adhesiveness: After printing the digital printing surface and drying for 30 minutes, the digital printing surface is adhered with a tape, and the external detachment, deformation, damage or damage of the digital printing surface is visually observed after the test.

2) Dryness: After printing the digital printing surface, the time required to completely dry the dryer at normal temperature was measured.

3) Cracking or not: After printing and drying for 60 minutes, the digital printing surface and the upper and lower films were cracked when the fabric was folded.

4) Sharpness: According to the comparison of standard color difference samples, it can be determined whether the printed color can be clearly displayed.

As shown in Table 1 above, in the first and second embodiments of the present invention, there is no obstacle in use and function, and the PVC tarpaulin product of Comparative Example 1 has a problem that the sharpness is remarkably lowered and the drying property is lowered, and the PE of Comparative Example 2 is obtained. The tarpaulin is remarkably lowered in terms of adhesion, dryness, cracking, sharpness, etc., and it is considered that there are many problems in use, and Embodiment 1 of the present invention is the most excellent.

B. Weather resistance test

In order to measure the deterioration of the product, according to the test method standard "WPS-06-03-102 weather resistance test method" of WONPUNG Co., Ltd., the sample is taken out after being stopped for 100 to 500 hours in the UVCON TEST instrument of ATLAS, and the color measuring instrument is measured by SF600 computer. The color difference was measured.

Here, ΔE is the color difference value. The larger the value is, the larger the color difference phenomenon is, and the physical property result value is shown in Table 2.

As shown in Table 2 above, Examples 1 and 2 of the present invention all showed good, and the longer the elapsed time of Comparative Examples 1, 2, the more problems occurred.

Therefore, the first and second embodiments of the present invention are the most excellent.

C. Cold resistance test

In order to determine the cold resistance of the product, the test was carried out according to the "KS K-0766 Cold Resistance Test Method" of the Korean KS specification, and the physical property result values are shown in Table 3.

As shown in the above Table 3, Examples 1 and 2 of the present invention all showed excellentness, and Comparative Examples 1 and 2 showed cracking.

D. Abrasion resistance test

In order to determine the surface abrasion resistance of the product, the weight loss was measured according to the US Federal Standard "FS 5306 Abrasion Resistance Test Method", and the physical property result values are shown in Table 4. (Test conditions: wheel number: H-18, load: 1000 g)

As shown in the above Table 3, it was confirmed that the abrasion resistance of Examples 1 and 2 of the present invention was superior to Comparative Examples 1 and 2.

E. Other comparison projects

1) Whether or not the public hazardous materials are produced or not: According to the material, the results are shown in Table 5.

2) Available or not of recycled raw materials: judged according to the material, the result values are shown in Table 5.

3) Cost reduction effect: The single or double structure of the above-mentioned recycled raw materials and the digital printing surface were compared and judged (the PVC tarpaulin of Comparative Example 1 was 1.0 times as a reference, and the comparison of Examples 1, 2 and Comparative Example 2 was compared. Compare the values) and the result values are shown in Table 5.

4) Operationality: The operability is judged by comparing the single or double structure of the digital printing surface.

As shown in the above Table 5, it was confirmed that Examples 1 and 2 of the present invention are composed of a polyolefin-based constituent material, and the environmentally-friendly product does not produce a harmful substance, and can be recycled as a product for recycling after use, and the raw material is recycled. Recycling and digital structure of single structure, which greatly reduces the cost and excellent operability.

In the background art, Comparative Example 1 produced environmental hormones, which were not able to be used as recycled raw materials and double-sided printing results due to pollution problems, and failed to achieve cost reduction, and confirmed that the operability was also low.

Although Comparative Example 2 was not used as a raw material for regeneration, it was also used as a raw material for regeneration, but its workability was low, and the A~D physical property items of other physical properties were the lowest as described above, and it was confirmed that there were many problems in use.

The above-mentioned embodiments are merely examples for convenience of description, and the scope of the claims is intended to be limited to the above embodiments.

Industrial utilization

According to the polyolefin tarpaulin of the present invention and a method for producing the same (thermoplastic polyolefin-based tarpaulin and a method for producing the same), the tarpaulin for digital printing of the present invention has a reinforcing structure having a reinforcing adhesive force on the surface layer thereof, which means better The processability, that is, the digital printing sheet can be easily joined to the surface layer of the tarpaulin. Due to the structure of the single digital printing surface, the digital printing surface is printed clearly and easily recognized, thereby reducing cost and improving efficiency.

Meanwhile, the polyolefin tarpaulin of the present invention and a method for producing the same (thermoplastic polyolefin-based tarpaulin and a method for producing the same) can not only prevent cracking but also improve cold resistance, weather resistance, and abrasion resistance due to the elasticity of the substrate. Sex.

In particular, the products and methods of the present invention prevent the generation of contaminants as in the production of PVC tarpaulins in the prior art, and the present invention produces environmentally friendly materials that are completely harmless to the human body and can be 100% recycled to achieve a reduction. Cost purpose.

1,2,3. . . Loading roller

10. . . Substrate

11. . . Filament

12. . . PP resin

20. . . Upper film

22,32. . . Auxiliary material

30. . . Lower film

40. . . Adhesive layer

50. . . Surface treatment layer

60, 60', 72, 313, 314. . . Digital printing surface

70,70’,71,315,316. . . Digital printing sheet

80. . . Protective film

100,300. . . Tarpaulin

100a. . . Tarpaulin fabric

211. . . Mixer

212. . . Mixer

213. . . Preheating roller

214. . . Calender

216. . . Embossing roller

217,226‧‧‧Cool rollers

222‧‧‧Preheating roller

224‧‧‧Squeeze roller

225‧‧‧ embossing roller

231‧‧‧ Coating equipment

234,234’‧‧·wheels

233, 233' ‧ ‧ coating roller

235‧‧‧Binder

237‧‧‧Dryer

310‧‧‧Substrate

312‧‧‧PVC or PE resin

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an exploded perspective view of a woven fabric unprocessed fabric of the present invention.

Figure 2 is an exploded perspective view of the tarpaulin fabric of the processed product of the present invention, wherein the tarpaulin unprocessed fabric is printed with a digital printing surface.

3 to 5 are exploded perspective views of a tarpaulin according to another embodiment of the present invention.

Figure 6 is a flow chart generally showing the manufacturing process of the tarpaulin of the present invention.

Fig. 7 is a schematic block diagram showing a process for manufacturing a film on the upper and lower portions of the tarpaulin of the present invention.

Figure 8 is a schematic view showing a manufacturing process of joining upper and lower films on a substrate of the present invention.

Fig. 9 is a schematic view showing the manufacturing process of applying the adhesive and the surface treatment agent to the upper film of Fig. 8 to provide the adhesive layer and the surface treatment agent layer.

Figure 10 is an exploded perspective view of a tarpaulin in the prior art.

(The figure is a flow chart, so there is no component symbol)

Claims (12)

A thermoplastic polyolefin-based tarpaulin for use as an industrial material for digital printing tarpaulin, comprising: a substrate which is impregnated with a polypropylene resin in a filament or nonwoven fabric having a fineness of 150 to 3000 denier Forming; the upper and lower films composed of thermoplastic polyolefin-based elastic fibers are composed of the following components: a thermoplastic polyolefin-based composite resin provided on the upper and lower portions of the substrate to impart elasticity to the substrate to prevent turtles Cracking phenomenon and improvement of cold resistance and wear resistance, while printing printing ink on digital printing surface; filler as auxiliary material; UV stabilizer as additive; antioxidant; and antistatic agent; An adhesive layer coated with an acrylate adhesive, wherein the adhesive layer can improve the adhesion of the digital printing surface or the digital printing sheet when the digital printing surface or the digital printing sheet is bonded to the upper film surface layer, wherein the digital layer The printing surface directly prints an advertisement or a published content for a digital printing machine, and the digital printing sheet is a thin plate on which a digital printing surface is printed. A fluorine - surface treating agent composed of an acrylic resin layer, the surface treating agent layer is printed in the digital printing provides a polar surface of adhesive layer surface layer, thereby improving the printing workability and weather resistance; Wherein the digital printing sheet or the digital printing surface is joined as a processed product of the tarpaulin, in which the digital printing surface is printed on the thin plate, and the digital printing surface is directly printed on the waterproof by the digital printing machine The upper portion of the surface treatment agent layer of the cloth unprocessed fabric; and the sum of the contents of all the constituent components of the upper and lower films is 100 wt%, and the upper and lower films are composed of the following components: 65 to 85 wt% as a main component a thermoplastic polyolefin-based composite resin comprising a linear low-density polyethylene resin having a melt index of 0.8 to 1.2 and a density of 0.918 to 0.922 and a thermoplastic polyolefin-based elastic fiber resin each having a composition of 40 to 60% by weight; The polyolefin-based elastic fiber resin (TPE resin) comprises 10 to 30 wt% of polypropylene, 15 to 25 wt% of polyethylene, and 55 to 65 wt% of rubber; and the following additives: 14.7 to 30 wt% of talc as a filler or Calcium carbonate; 0.1~2.0wt% sebacic acid diester series or polytetramethylbutylamine series UV stabilizer; 0.1~1.5wt% phosphite and hydroxylamine series phenol-free antioxidant as antioxidant; 0.1~ 1.5 Wt% as a monoglyceride of an antistatic agent. A thermoplastic polyolefin-based tarpaulin comprising an upper and lower film bonded to a surface layer of a tarpaulin substrate to impart elasticity to a tarpaulin as an industrial material, characterized in that all of the upper and lower films are The sum of the contents of the components is 100 wt%, and the upper and lower films are composed of the following components: 65 to 85 wt% of a thermoplastic polyolefin-based composite resin as a main material, and the composite resin has a melt index of 0.8 to 1.2 and a density. Is 0.918~0.922 The linear low-density polyethylene resin and the thermoplastic polyolefin-based elastic fiber resin are each composed of 40 to 60% by weight; wherein the thermoplastic polyolefin-based elastic fiber resin (TPE resin) comprises 10 to 30% by weight of polypropylene and 15 to 25% by weight of polyethylene. And 55~65wt% rubber; and the following additives: 14.7~30wt% talc or calcium carbonate as filler; 0.1~2.0wt% sebacic acid diester series or polytetramethylbutylamine series ultraviolet stabilizer 0.1~1.5wt% phosphite and hydroxylamine series phenol-free antioxidant as antioxidant; 0.1~1.5wt% monoglyceride as antistatic agent. The thermoplastic polyolefin-based tarpaulin according to claim 1 or 2, wherein a flame retardant is added in an amount of 5 to 45 wt% with respect to 100 wt% of the upper and lower film thermoplastic polyolefin-based elastic fibers. The flammant is one or more flame retardants selected from the group consisting of vinyl-di-tetra-bromophenyl hydrazine, antimony trioxide or magnesium hydroxide of the bromine series. The thermoplastic polyolefin-based tarpaulin according to claim 1 or 2, which is characterized in that 0.5 to 5.0% by weight of a coloring agent for coloring is added to 100% by weight of the upper and lower film thermoplastic polyolefin-based elastic fibers. The colorant is black carbon black or blue blue blue. The thermoplastic polyolefin-based tarpaulin according to claim 1, wherein the adhesive layer is composed of a binder containing 5 to 20% of a resin solid powder, and the binder is 5 to 20% by weight. The polyurethane-cyanoacrylate resin is dissolved in 80 to 95% by weight of a solvent which is one or more solvents selected from the group consisting of methyl ethyl ketone, dimethylformamide or ethylene glycol diacetate. The thermoplastic polyolefin-based tarpaulin according to claim 1, wherein the surface treatment agent layer is composed of a surface treatment agent having a solid powder content of 20 to 30%, and the surface treatment agent is 20 to 30% by weight. The fluorine-acrylaldehyde-based resin is dissolved in 70 to 80% by weight of a solvent selected from one or more solvents selected from methyl ethyl ketone or dimethylformamide. The thermoplastic polyolefin-based tarpaulin according to the first aspect of the invention, characterized in that the surface of the digital printing surface is bonded as a film of a protective film. The thermoplastic polyolefin-based tarpaulin according to claim 1, wherein the digital printing surface or the digital printing sheet is respectively formed by a digital printing surface having a double structure formed on the upper and lower film surface layers. Or a digital printed sheet. A method for producing a thermoplastic polyolefin-based tarpaulin comprises the following five stages: the first stage is a substrate production stage, and a polypropylene resin is coated on both sides of a filament or a nonwoven fabric of 150 to 3000 denier fineness to produce a fiber. The wire or the non-woven fabric is coated with a substrate having a thickness of 0.1 to 1.2 mm of polypropylene resin; the second stage is a stage for producing the upper and lower film, and the sum of the contents of all the components of the upper and lower films is 100 wt%, The upper and lower films are composed of the following components: 65 to 85 wt% of a thermoplastic polyolefin-based composite resin as a main material, the composite resin comprising a linear low-density polyethylene resin having a melt index of 0.8 to 1.2 and a density of 0.918 to 0.922. Thermoplastic polyolefin-based elastic fiber resin It is composed of 40~60wt%; wherein the thermoplastic polyolefin-based elastic fiber resin (TPE resin) comprises 10~30wt% polypropylene, 15~25wt% polyethylene and 55~65wt% rubber; and the following additives: 14.7 ~30wt% talc or calcium carbonate as filler; 0.1~2.0wt% sebacic acid diester series or polytetramethylbutylamine series ultraviolet stabilizer; 0.1~1.5wt% phosphite as antioxidant Hydroxylamine series phenol-free antioxidant; 0.1~1.5wt% monoglyceride as antistatic agent; put the above materials into the mixer, mix at 140~160°C for five minutes, then move the mixture to preheating temperature The mixer of 140~160°C is firstly mixed in 140~160°C for 2 minutes, then moved to the preheating roller with preheating temperature of 140~160°C, and the second time is mixed for 2 minutes at 140~160°C. After moving to a calender; after forming a film having a thickness of 0.1 to 0.4 mm in a lower roll preheated to 150 to 170 ° C by a calender, calendering and cooling by an embossing roll and a cooling roll to complete the upper or lower part of the present invention a film; the third stage is a stage of joining the upper and lower films to the substrate, loading the substrate produced in the first stage to the loading roll, and After the upper and lower films produced in the second stage are respectively loaded to the loading roller, the substrate is preheated to a substrate preheating roller of 100 to 120 ° C and moved to the main water squeezing roller; the upper film is preheated to 70 to 80 ° C. The upper film preheating roller is moved to the main water squeezing roller; the lower film is preheated to a lower film preheating roller of 80 to 90 ° C and moved to the main water squeezing roller; the above-mentioned main water squeezing roller preheated to 140 to 160 ° C The upper and lower films are laminated on the substrate and the lower portion, and the layers are joined, and then subjected to final calendering and cooling treatment through an embossing roll and a cooling roll to obtain a thickness of 0.3 to 2.0 mm bonded to the substrate. Laminate products of upper and lower films; Stage 4 is a binder and surface treatment coating stage. A 120-mesh coating roll gravure 1 coating apparatus is coated with a polyurethane-cyanoacrylate adhesive loaded in the hub. The 120 mesh coating roll is 1 square inch. The coating roller is engraved with 120 gravure grooves for coating thickness control, and the above-mentioned laminate product is coated with a binder solid powder of 5-20 μm at a thickness of 0.01 to 0.03 mm at the upper or lower portion of the laminate product. Adhesive layer; after coating, it is moved to a dryer with a temperature of 60-80 ° C and a transfer speed of 10-20 m/min, and then moved to a gravure coating device of a 70-mesh coating roller, which is coated by 70 mesh. The 1 inch inch coating roll is engraved with 70 gravure grooves for coating thickness control, and the 70 mesh coating roll is coated with a fluorine-acrylic resin contained in the hub. a surface treatment agent, and then performing a first coating of the surface treatment agent on the surface of the adhesive layer: applying a surface treatment agent solid surface powder to a surface treatment agent layer of 20 to 30 μm; after applying the surface treatment agent coating, moving to Dryer with temperature of 60~80°C and transfer speed of 10~20m/min Drying, re-rolling onto the gravure 2 coating equipment, and applying the second and third coatings of the surface treatment agent according to the same composition as above, so that the thickness of the surface treatment agent layer is 0.025 to 0.07 mm, so as to obtain an overall thickness of 0.335~ 2.1mm tarpaulin fabric; *1st coating: No. 1:120 mesh adhesive + 2:70 mesh surface treatment agent; * 2nd coating: 3:70 mesh surface treatment agent + 4:70 mesh Surface treatment agent; *3rd coating: 5:70 mesh surface treatment agent + 6:70 mesh surface treatment agent; The fifth stage is a printing digital printing surface or a joint digital printing sheet stage, and the tarpaulin fabric obtained in the fourth stage is put into a digital printing machine, and the digital printing surface is directly printed on the surface of the surface treatment layer, or in the surface treatment agent. The surface layer is bonded to a digital printing sheet which is printed with a printing surface of a digital printing surface to finally obtain a processed product of the tarpaulin. The method for producing a thermoplastic polyolefin-based tarpaulin according to claim 9, wherein in the fourth stage, the surface treatment agent layer is not formed by a gravure coating process, but by a knife coater or a comma The blade coater process is formed by performing the first coating of the surface treatment agent. The method for producing a thermoplastic polyolefin-based tarpaulin according to claim 9, wherein the tarpaulin has a double-structured digital printing sheet or a double-structured digital printing surface, and the double structure is: digital printing A face or digital printed sheet is stacked on and joined to the lower film skin. The method for producing a thermoplastic polyolefin-based tarpaulin according to claim 9, wherein the surface of the digital printing surface of the tarpaulin obtained in the fifth stage is bonded as a protective film to prevent digital digits. The printed surface is scratched or impacted.