JP2004076181A - Method for producing artificial leather provided with pressed flower in inner part - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing artificial leather provided with a pressed flower in the inner part having a freshness retention function in a vacuum. <P>SOLUTION: The method for producing the artificial leather provided with the pressed flower in the inner part has a first step for feeding a raw material necessary for producing transparent artificial leather to a hopper, treating the raw material into a hot-melt state by a pretreatment mechanism having high pressure, electric heat and transmission shaft function and reducing the raw material to a liquid state by a screw extrusion mechanism, a second step for passing a substrate to which a dry flower is bonded and which has tension properties between cooling roll sets, forming a liquid retention section by dividing the cooling roll set at the dry flower end side, receiving the liquid raw material for the artificial leather flowed down in the first step by the liquid retention sections, sterilizing the dry flower on the substrate and the substrate at a high temperature by immersion by the liquid raw material, forming a coated film and pressing out and removing air at the coated substrate side, and a third step in which a liquid retention section is formed by dividing the dry flower end side of the substrate by another pair of the cooling roll set and a different liquid raw material for the artificial leather is retained in the liquid retention section, thus forming a coated film on the bottom of the substrate. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for producing artificial leather having a kind of pressed flower inside, particularly a molding method having a function of maintaining the freshness of dried flowers in vacuum, extending the storage time of dried flowers inside artificial skin, The present invention relates to a method for producing an artificial skin having a pressed flower inside so as to have a long-lasting three-dimensional aesthetic effect.
[0002]
[Prior art]
As for the structure of artificial leather having a pressed flower on the inside, there is already published Taiwan Patent Publication No. 346047, and the technology described therein is to bond a plurality of natural pressed flowers 2 to a base cloth (1) and to form the same. An extremely thin film 3 is bonded thereon, and a pressed flower 2 of a natural object is bonded to the base cloth 1 to give the base cloth 1 a three-dimensional pattern.
[0003]
The above-mentioned technique can form a three-dimensional pressed flower cloth structure, but the forming technique only applies an adhesive on natural pressed flower 2 and joins an extremely thin film 3, and such a cold bonding molding method is fundamental. The pressed flower 2 made of natural objects cannot secure the vacuum effect generated by the division of the film 3 and, after a certain period of time, the pressed flower 2 becomes moldy due to the infiltration of water or air, and changes its quality. lose. In addition, the film 3 hardens after joining, and loses soft elasticity like general leather. For this reason, this well-known technique basically does not provide the function of maintaining the freshness of vacuum to the pressed flower 2 of the natural object simply by isolating the pressed flower 2 of the natural object using the film 3. Therefore, the well-known pressed flower 2 does not have a storage function which is expected to have a storage function, and the petals are easy to fall and wither, so that there is a need for improvement.
[0004]
[Problems to be solved by the invention]
In view of the above, the present inventor has noticed that unless the pressed flower of a natural object is stored in a vacuum state, the service life of the pressed flower cannot be extended and the aesthetic effect of the pressed flower cannot be maintained.
[0005]
Therefore, a main object of the present invention is to provide a method for producing artificial leather having a pressed flower inside having a function of maintaining vacuum freshness, extending the storage time of the artificial pressed skin, and providing a long-lasting three-dimensional aesthetic. The effect is to have an effect.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 is a method for producing an artificial skin having a pressed flower inside,
The raw materials required for the production of transparent artificial leather are put into a hopper, and processed by a pretreatment mechanism having a high-pressure, electrothermal drive shaft function.The artificial leather raw material is converted from a solid into a hot melt state, and reduced to a liquid state by a screw extrusion mechanism. A liquid, and a first step for the next manufacturing step;
The dried flowers are passed through a cooling roll set on a substrate having a tensile characteristic and adhered to the substrate, and the cooling roll set on the end side of the dried flowers forms a liquid stagnation area, and flows down in the liquid stagnation area in the first step. The second step of receiving the artificial skin liquid raw material, immersing the dried flower on the base material and the base material with the liquid raw material, performing high-temperature sterilization, forming a protective film, and extruding and excluding the air on this side. When,
Another set of cooling rolls is installed, and the base material that has passed through the second step is passed through the other set of cooling rolls. The bottom surface of the base material on the opposite side is partitioned to form a liquid retention zone, another artificial skin liquid material is retained in this liquid retention zone, and the bottom surface of the base material is immersed to form a bottom film and a protective function. A third step of sterilizing and vacuum-protecting the dried flowers, thereby completing an artificial skin with pressed flowers inside,
And a method for producing an artificial skin having a pressed flower inside.
The invention according to claim 2 is characterized in that the artificial skin liquid raw material for forming the bottom layer of the base material is a colored material, and the method according to claim 1, wherein the artificial skin is provided with a pressed flower inside. And
The invention according to claim 3 is characterized in that the passage time of the dried flower end provided in the base material through the liquid retaining section is set by the flow rate at which the artificial skin liquid material is injected into the liquid retaining section. (2) A method for producing an artificial skin having a pressed flower inside.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a view showing a manufacturing process of a method for manufacturing an artificial skin having a pressed flower inside the embodiment of the present invention. According to an embodiment of the present invention, the manufacturing equipment includes a hopper 5, two sets of cooling rolls 6, 7, and other auxiliary transmission mechanisms, and the manufacturing method of the present invention includes the following steps.
First step: The raw material 4 (for example, PE or EVA) required for the production of the transparent artificial leather is put into the hopper 5, and is processed by a pretreatment mechanism having a high-pressure, electrothermal drive shaft function. The mixture is converted into a liquid melted by heat, and further reduced by using a screw extruding mechanism 50 to form a liquid raw material 40 (at a temperature of about 200 ° C. or higher), and is subjected to the next step.
Second step: The base material 8 (see FIG. 2) to which the dried flower 80 has been previously adhered and has an appropriate tension is caused to enter the first cooling roll set 6 and the first outside of the dried flower 80 end side. The upper part of the cooling roll set 6 is partitioned to form a liquid retaining section 60, in which the artificial skin liquid material 40 (which can be made transparent) flowing down in the first step is received. Then, the substrate 8 to be pulled and passed and the dried flower 80 thereon are immersed and pasteurized, and after the pasteurization, a film protection is further formed. After the base material 8 and the dried flower 80 thereon pass through the first cooling roll set 6, the artificial skin liquid raw material 40 is pulled and a saturated phenomenon is formed on the dried flower 80 and the uneven surface of the base material 8, which passes. Then, the bubble phenomenon that occurs when the artificial skin liquid raw material 40 passes the rear end of the protruding object is eliminated, and the air in this part is extruded upward and eliminated, and after completely passing through the first cooling roll set 6, The artificial skin liquid raw material 40 is cooled to form a soft solid and adheres to the base material 8 and the dried flowers 80 (see FIG. 3).
Third step: The substrate 8 and the dried flower 80 to which the transparent protective layer 41 has been adhered are subsequently pulled to pass through the second cooling roll set 7, and the outside of the opposite side of the substrate 8 opposite to the dried flower 80. The second cooling roll set 7 similarly forms a liquid retaining section 70, and another kind of artificial skin liquid raw material 90 is injected and retained in the liquid retaining section 70 (a non-transparent and colored one is preferable) to form a membrane. Forming and germicidal protection effect. Similarly, after passing through the second cooling roll set 7, a saturation phenomenon occurs on the bottom surface of the base material 8, and an artificial skin having a colored bottom layer 91 is formed (see FIG. 4). The base material 8 and the dried flower 80 are vacuum-protected by passing the film forming, dipping and evacuation actions by the two cooling roll sets 7, 8 to thereby vacuum-protect the base material 8 and the dried flower 80, thereby providing a pressed flower inside. Manufacture artificial leather.
[0008]
【The invention's effect】
In the embodiment of the present invention, only by changing the flow rate of the transparent artificial skin liquid material, the portion of the substrate 8 having the dried flowers 80 is sufficiently immersed in the liquid material when passing through the cooling roll set 6 to form a film. Thus, when the dried flowers 80 pass through, air can be eliminated and a vacuum effect can be achieved, thereby achieving the function of maintaining the freshness of the dried flowers 80 and extending the aesthetic visual effect. The simple flowchart is as shown in FIG.
[0009]
Therefore, as can be seen from the above description, the present invention has a disadvantage that the vacuum freshness maintaining function and the petals that are easily lacking in the conventional method for producing artificial leather with inwardly pressed flowers and thereby the petals easily fall off due to moisture, and furthermore, the disadvantage that the color is faded To improve. The natural pressed flower of the present invention can obtain a sterilizing effect due to high temperature of the artificial skin liquid raw materials 40, 90 staying in the liquid retaining sections 60, 70, and can obtain a vacuum freshness maintaining function by vacuum coating of the natural pressed flower together with sterilization, Effectively solves the problem of fading, damp and mold of flowers, and prolongs the life of dry flowers and the visual effect of three-dimensional beauty. INDUSTRIAL APPLICABILITY The present invention is applicable to various kinds of leather products, for example, wallets, bags, umbrellas, and clothing articles, has an extremely wide industrial application range, and has practicality and inventive step.
[0010]
Taken together, the method of the present invention for producing artificial leather with a pressed flower inside achieves the expected purpose and function, and has novelty, and improves the quality and longevity of artificial leather with a pressed flower inside. Extended, with significant enhancements, inventive step, and fully complies with patent requirements. The above embodiments do not limit the scope of the present invention, and any modification or alteration of details that can be made based on the present invention shall fall within the scope of the present invention.
[Brief description of the drawings]
FIG. 1 is a schematic view showing a manufacturing method according to an embodiment of the present invention.
FIG. 2 is a cross-sectional structural view at a position A in FIG.
FIG. 3 is a sectional structural view at a position B in FIG. 1;
FIG. 4 is a sectional structural view at a position C in FIG. 1;
FIG. 5 is a simplified manufacturing flowchart of the embodiment of the present invention.
[Explanation of symbols]
4 Artificial leather liquid raw material 5 Hopper 6, 7 Cooling roll set 8 Base material 50 Extrusion mechanism 60, 70 Retention zone 80 Dried flower 40, 90 Liquid raw material 41 Protective layer 91 Bottom layer

Claims (3)

In the method of manufacturing artificial leather with pressed flowers inside,
The raw materials required for the production of transparent artificial leather are put into a hopper, and processed by a pretreatment mechanism having a high-pressure, electrothermal drive shaft function.The artificial leather raw material is converted from a solid into a hot melt state, and reduced to a liquid state by a screw extrusion mechanism. A liquid, and a first step for the next manufacturing step;
The dried flowers are passed through a cooling roll set on a substrate having a tensile characteristic and adhered to the substrate, and the cooling roll set on the end side of the dried flowers forms a liquid stagnation area, and flows down in the liquid stagnation area in the first step. The second step of receiving the artificial skin liquid raw material, immersing the dried flower on the base material and the base material with the liquid raw material, performing high-temperature sterilization, forming a protective film, and extruding and excluding the air on this side. When,
Another set of cooling rolls is installed, and the base material that has passed through the second step is passed through the other set of cooling rolls. The bottom surface of the base material on the opposite side is partitioned to form a liquid retention zone, another artificial skin liquid material is retained in this liquid retention zone, and the bottom surface of the base material is immersed to form a bottom film and a protective function. A third step of sterilizing and vacuum-protecting the dried flowers, thereby completing an artificial skin with pressed flowers inside,
A method for producing an artificial skin having a pressed flower on the inside, comprising: The method according to claim 1, wherein the artificial skin liquid raw material for forming the bottom layer of the base material is a colored material. The pressed flower inside according to claim 1, wherein the passage time of the dried flower end liquid staying section provided on the base material is set by the flow rate of injecting the artificial skin liquid material into the liquid staying section. Method of manufacturing artificial leather with

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