KR20230016094A - Method for manufacturing medical tray liner paper - Google Patents

Abstract

The present invention relates to a method for manufacturing medical tray liner paper, comprising the steps of: (S4) mixing wet strength enhancer for enhancing wet strength with a beat mixture (C) to manufacture main materials; (S5) using a fourdrinier machine (30) with the main material to form first paper (W1) having a specific tensile strength in the longitudinal and horizontal directions; (S6) using a cylinder-type paper making machine (40) with the main material to second paper (W2) having a tensile strength difference between the longitudinal direction and the horizontal direction larger than the first paper (W1); (S7) combining the first paper (W1) formed by the fourdrinier machine (30) with the second paper (W2) formed by the cylinder-type paper making machine (40) to form a combined paper result (W); and (S8) compressing and dewatering the combined paper result (W). The purpose of the present invention is to provide a method for manufacturing medical tray liner paper which has strong durability to prevent the paper from being torn or destroyed even when effectively absorbs body fluids or sterilized water on medical equipment.

Description

Method for manufacturing medical tray liner paper {Method for manufacturing medical tray liner paper}

The present invention relates to a method for manufacturing a medical tray liner, and more particularly, to a medical tray liner that effectively absorbs liquid substances on medical instruments used in the process of performing medical activities such as washing or procedures and is not easily damaged at the same time. Its object is to provide a method for manufacturing tray liner paper.

In general, hospitals use various medical instruments in the process of performing medical activities such as surgery or procedures. The medical instruments are placed on a stainless tray disposed in a space accessible to a doctor and used. At this time, the upper surface of the tray is covered with liner paper on which a plurality of medical instruments are laid out.

By being positioned between the medical device and the tray, the linerage prevents contamination of the medical device by the tray or conversely, contamination of the tray by the medical device used in the medical practice. In addition, Linerage absorbs liquid substances such as patient's body fluids or sterilized water that come to medical devices during the course of medical practice, enabling hands to accurately hold medical devices without slipping, and also prevents liquid substances from transferring to the tray. .

However, as the amount of absorbed body fluid or sterilized water increases, the durability of the liner paper decreases, and accordingly, a situation in which it is easily torn or damaged by sharp parts of medical devices frequently occurs. In this case, the medical instruments come into direct contact with the trays, severely contaminating the trays, and after the end of the medical practice, problems such as passing through the trays and falling to the floor while being transported to a sterilization place in a state wrapped around the medical instruments used by the trays have occurred.

The present invention was created to solve the above problems, and despite effectively absorbing bodily fluids or sterilized water on medical instruments, a method for manufacturing medical tray liner paper capable of strong paper durability that does not get crushed or damaged intended to provide

Another object of the present invention is to provide a method for manufacturing medical tray liner paper, which can be manufactured in bulk so as to maximize the amount of moisture absorption.

In order to achieve the above object, the method for manufacturing medical tray liner paper according to the present invention comprises the steps of preparing a main raw material by mixing a wet paper strength enhancing agent for enhancing wet paper strength with a beating mixture (C) (S4); Forming a first paper (W1) having a specific tensile strength in the longitudinal and transverse directions using the main raw material by using a long net paper machine (30) (S5); Forming a second paper-paper (W2) having a greater tensile strength difference between the longitudinal and transverse directions than the first paper-paper (W1) using the main raw material by using a circular mesh paper machine (40) (S6); A step (S7) of laminating the first paper paper (W1) formed by the long net paper machine (30) with the second paper paper (W2) formed by the round net paper machine (40) to form a laminated product (W); And a step (S8) of compressing and dehydrating the lamination result (W); characterized in that it comprises a.

In the present invention, the step (S1) of mixing coniferous pulp with water to dissociate and cutting and fibrillating the dissociated fibers to obtain a first refined product (C1); obtaining a second refined material (C2) in which hardwood pulp, which is shorter and thicker than softwood pulp, is mixed with water to dissociate, and the dissociated fibers are cut and fibrillated (S2); It further includes a step (S3) of obtaining a beaten mixture (C) by mixing the first refined material (C1) obtained in the step (S1) and the second refined material (C2) obtained in the second beating step (S2). .

In the present invention, in step (S3), the beating mixture (C) is implemented by mixing 10 to 30 parts by weight of the second beaten material (C2) with 100 parts by weight of the first beaten material (C1).

In the present invention, the step (S7) further includes a step (S7-1) of spraying a reinforcing agent to the rear surface of the first paper paper (W1) transferred to the circular mesh paper machine (40).

In the present invention, forming wrinkles (CREPE) in the press-and-dehydrated laminated product (W) (S9); and drying the wrinkled laminated product (W) (S10).

In the present invention, in the step (S9), the doctor blade 91 of the crepe forming unit 90 is obliquely adhered to the upper dehydrating roller 72 of the squeezing and dehydrating unit 70, and the lower dehydrating roller 71 ) and the upper dehydration roller 72, the transfer speed of the laminated product (W) is faster than the transport speed of the laminated product (W) that is wound and transferred to the heating drum 51 of the Yankee dryer.

According to the present invention, it is possible to realize a large amount of medical liner that is not easily crushed or damaged while effectively absorbing bodily fluid or sterilized water on medical instruments during medical practice.

In addition, since the liner paper is made of 100% natural materials such as softwood pulp and hardwood pulp, it is environmentally friendly because it naturally rots and disappears when discarded.

1 is a view for explaining the overall configuration of a medical tray liner manufacturing apparatus according to the present invention;
2 is a view for explaining that the first and second wing rollers are installed in the raw material supply unit of FIG. 1;
3 is a view for explaining the process of laminating the first paper and the second paper in FIG. 1;
4 is a view for explaining a process of forming a crepe on the compressed and dehydrated laminated product of FIG. 1;
5 is a block diagram for explaining a method for manufacturing a medical liner according to the present invention;

Hereinafter, a method for manufacturing a medical tray liner according to the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, what is described as "above" or "above" may include not only what is directly on top of contact but also what is on top of non-contact. Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. Terms are only used to distinguish one component from another. Singular expressions include plural expressions unless the context clearly dictates otherwise. In addition, when a certain component is said to "include", this means that it may further include other components without excluding other components unless otherwise stated. In addition, terms such as "...unit" and "module" described in the specification mean a unit that processes at least one function or operation. When an embodiment is otherwise implementable, a specific process sequence may be performed differently from the described sequence. For example, two processes described in succession may be performed substantially simultaneously, or may be performed in an order reverse to the order described.

1 is a view for explaining the overall configuration of a medical tray liner manufacturing apparatus according to the present invention, FIG. 2 is a view for explaining that first and second wing rollers are installed in the raw material supply unit of FIG. 1, and FIG. 1 is a view for explaining the process of laminating the first paper and the second paper, and FIG. 4 is a view for explaining the process of forming a crepe on the pressed and dehydrated laminating result of FIG.

As shown, the manufacturing apparatus for manufacturing medical tray liner paper according to the present invention includes a first raw material supply unit 10 and a second raw material supply unit 20 in which main raw materials are accommodated; A long net paper machine (30) for forming a first paper (W1) having a specific tensile strength in the longitudinal and transverse directions from the main raw material supplied from the first raw material supply unit (10); A circle mesh paper machine (40) for forming a second paper paper (W2) having a greater difference in tensile strength between the longitudinal and transverse directions compared to the first paper paper (W1) from the main raw material supplied from the second raw material supply unit (20) and; a Yankee dryer 50 having a rotating heating drum 51; As being endlessly transported between the long netting machine 30, the round netting machine 40 and the Yankee drying machine 50, after separating the first grassland W1 from the long netting machine 30, the round netting paper machine 40 A first transfer unit 60 for forming and transferring a laminated product (W) by laminating with the second paper (W2) formed in; a compression dehydration unit 70 for compressing and dehydrating moisture contained in the lamination result (W) transferred to the first transfer unit 60; a second transfer unit 80 that separates the compressed and dehydrated laminated product W from the first transfer unit 60 and guides the surface of the heating drum 51 to wind; A crepe forming unit 90 for forming a crepe in the form of fine wrinkles on the resultant lamination (W) before the resultant lamination (W) compressed and dehydrated in the compression and dehydration unit 70 is transferred to the second transfer unit 60; It is installed between the long netting machine 30 and the round netting machine 40 and supplies a reinforcing agent for reinforcing the bonding force with the second papermaking machine W2 to the first paperboard W1 transported by the first transfer unit 60 Reinforcement supply unit 100; characterized in that it comprises.

The first raw material supply unit 10 is installed in the head box 11 in which the main raw material in suspension state supplied to the long net paper machine 30 is accommodated, and is installed in the head box 11 to supply the main raw material to the long net paper machine 30. It has a nozzle 12 for spraying to the long conveyor 31. A pump (not shown) is installed in the nozzle 12, and the main raw material accommodated in the head box 11 is sprayed widely to the long net conveyor 31 to form a thin first paper.

In the second raw material supply unit 20, the main raw material in suspension is accommodated to maintain a specific water level, and the ring net 41 constituting the circular netting machine 40 is approximately 3/4 of the suspension mixed with the main raw material and water. It is locked and supported to rotate.

The netting machine 30 is implemented by weaving wires in the horizontal and vertical directions, and the net conveyor 31 for forming the first paper W1 by the raw material supplied from the first raw material supply unit 10, and the netting It includes a plurality of long rollers 32 that feed the conveyor 31 in an endless track. At this time, the long network conveyor 31 has an air gap of 120 mesh.

The first paper W1 formed on the long net conveyor 31 is formed by mutually combining pulp fibers of the main raw material injected in an unspecified direction through the nozzle 12 of the first raw material supply unit, and is specified in the longitudinal and transverse directions have tensile strength.

The circular netting machine 40 is implemented by weaving wires in the horizontal and vertical directions, and rotates the circular net 41 forming the second paper W2 while being partially immersed in the second raw material and rotating the circular net 41 It includes a ring network body (42). At this time, the ring net 41 has an air gap of 80 mesh.

Since the second papermaking W2 formed in the ring net 41 is attached to the pulp fibers of the main raw material in the ring net rotated from the bottom to the top in the main raw material, the pulp fibers are directionally coupled by gravity, and thus the end There is a difference in tensile strength in the direction and the transverse direction. More precisely, in the second paper W2, the tensile strength in the longitudinal direction corresponding to the direction of gravity is greater than the tensile strength in the transverse direction.

On the other hand, the second raw material supply unit 20 is completely immersed in the received main raw material and rotates, and artificially forms the flow and vortex of the main raw material to the lower surface and side surface of the ring net 41 First and second wing rollers 21, 22 ) is installed. The first and second wing rollers 21 and 22 have a structure in which a plurality of wings are formed on the roller, and are moved in the opposite direction to the circular net 41 by a drive motor (not shown) installed outside the second raw material supply unit 20. rotated

The rotating first and second wing rollers 21 and 22 form a vortex around the annulus 41 and at the same time form a continuous flow of the main raw material, and the vortex generated around the annulus 41 is an annulus 41 Even in the process of forming the second paper (W2) on the surface of the pulp fiber concentration around the ring net (41) is not excessively high. That is, the first and second wing rollers 21 and 22 rotating in the opposite direction to the ring net 41 are pulp around the ring net 41, even if the second paper W2 is continuously formed in the ring net 41 The purpose is to keep the fiber concentration distribution as constant as possible, and accordingly, to continuously form the second paper W2 having a constant thickness.

The Yankee dryer 50 includes a heating drum 51 in which the laminated product W transported by the second transfer unit 80 is wound and rotated at the same time, and a drying box 52 surrounding the side and upper sides of the heating drum 51. ), and a heating blower 53 installed inside the drying box 52 to inject high-temperature air toward the heating drum 51 and then exhaust it. Since the bottom surface of the laminated product W is dried by the heating drum 51 and the outer circumferential surface is blown by the heating blower 53 by the Yankee dryer 50, rapid drying during transportation is possible.

In this embodiment, the diameter of the heating drum has a size of 3 to 4 m, and the temperature of the heating drum 51 is in the range of 120 to 150 °C.

The first transfer unit 60 is endlessly transported between the long netting machine 30, the round netting machine 40, and the Yankee dryer 50, and separates the first papermaking W1 from the long netting machine 30. After that, it is laminated with the second paper (W2) formed in the circular mesh paper machine (40) to form a laminated result (W). This first transfer unit 60 is a first felt conveyor 61 that feeds endlessly between the long netting machine 30, the round netting machine 40 and the Yankee dryer 50. A circular net adhesion roller 62 closely adhered to the upper surface of the circular net paper machine 30, a net adhesive roller 63 closely adhered to the net conveyor 31 of the net paper machine 40, and a first felt conveyor ( 61) is composed of a plurality of support rollers.

The squeezing and dehydrating unit 70 is composed of a lower dehydrating roller 71 that adheres to the lower surface of the first transfer unit 60 on the side of the Yankee dryer 50 and an upper dehydrating roller 72 that adheres to the upper surface. The lower dehydration roller 71 and the upper dehydration roller 72 are pressed in opposite directions, so that the first conveying part 60 and the laminating product (W) passing between the lower dehydration roller 71 and the upper dehydration roller 72 is pressed, and in this process, the moisture contained in the laminated product (W) is dehydrated.

The second transfer unit 80 is endlessly transported between the compression and dewatering unit 70 and the Yankee dryer 50, and after separating the dehydrated lamination result W from the first transfer unit 60, the heating drum 51 ) is guided to wind the surface of The second transfer unit 80 wraps the compression and dehydration unit 70 and the heating drum 51, and then the second felt conveyor 81 transported in an endless track, and the laminated result via the upper dehydration roller 72 of the compression and dehydration unit. It consists of a drum guide roller 82 guiding (W) to the surface of the heating drum 51 and a plurality of support rollers supporting the second felt conveyor 81.

The crepe forming unit 90 forms a crepe before the resultant lamination (W) compressed and dehydrated in the compression and dehydration unit 70 is transferred to the second transfer unit 80 . The crepe forming unit 90 includes a doctor blade 91 obliquely adhered to the upper dewatering roller 72 and a blade body 92 supporting the doctor blade 91 at a specific angle.

The reinforcing agent supply unit 100 is installed between the long netting machine 30 and the round netting machine 40 and reinforces the binding force with the second papermaking machine W2 with the first papermaking W1 transferred to the first conveying unit 60. supplies reinforcements for

5 is a block diagram for explaining a method for manufacturing a medical liner according to the present invention;

The medical tray liner of the present invention is manufactured by the manufacturing apparatus of FIGS. 1 to 4.

More specifically, in order to manufacture medical tray liner paper, coniferous pulp is mixed with water to dissociate, and the dissociated fibers are cut and fibrillated to obtain a first refined product (C1) (S1). .

In addition, a step (S2) of obtaining a second refined material (C2) is performed in which hardwood pulp, which is shorter and thicker than softwood pulp, is mixed with water to dissociate, and the dissociated fibers are cut and fibrillated.

In the first step (S1), the softwood pulp is longer than the hardwood pulp in the second step (S2). In this embodiment, the softwood pulp has a length of 2 to 2.5 mm, the hardwood pulp has a length of 0.5 to 0.9 mm, and the hardwood pulp is used as thicker instead of shorter than the softwood pulp.

Since the first step (S1) independently beats only the softwood pulp that is longer and thinner than the hardwood pulp, and the second step (S2) independently beats only the hardwood pulp that is relatively shorter and thicker than the softwood pulp, the softwood pulp and It is possible to maximize the formation of fine hairs in each pulp fiber of hardwood pulp, and accordingly, it is possible to increase the degree of beating for hydrogen bonding.

If coniferous pulp and hardwood pulp are mixed and beaten, each pulp has a different length or thickness, so neither of the hardwood pulp and hardwood pulp is excessively beaten or beaten during the physically strong beating process. will become absent

Next, a step (S3) is performed to obtain a beaten mixture (C) by mixing the first refined material (C1) obtained in the step (S1) and the second refined material (C2) obtained in the second beaten step (S2). .

Here, the beating mixture (C) is implemented by mixing 10 to 30 parts by weight of the second beaten material (C2) with 100 parts by weight of the first beaten material (C1), preferably 24 parts by weight. Accordingly, the beating mixture (C) is mixed with long fibers (softwood pulp) as a main component and short and thick short fibers (hardwood pulp) as a secondary component.

If the second refined material (C2) is less than 10 parts by weight, the moisture absorption of the finished liner paper is reduced because the content of the second refined material (C2) composed of relatively short and thick pulp fibers is small. Since the content of the first refining material (C1) composed of long fibers is small, the tensile strength of the finished liner paper is low.

A step (S4) of preparing a main raw material by mixing a wet strength enhancer for enhancing wet strength with the beating mixture (C) is performed.

Here, the wet strength enhancer is a step of mixing a wet strength enhancer, for example, epoxy, in an amount of 0.5 to 8 parts by weight based on 100 parts by weight of the beating mixture (C1). In step (S4), the wet strength enhancer causes the pulp fibers to form a long chain by causing or reacting with covalent bonds, and the liner paper manufactured according to this maintains the strength of the paper even when excessively absorbing moisture or liquid materials.

When manufacturing liner paper from the beating mixture (C) produced in steps (S1) to (S4), the manufactured liner paper has a strong tensile strength, and the liner paper absorbs moisture or liquid substances on medical devices. Even if it is, liner paper can maintain strong wet paper power.

Through this series of steps (S1) to (S4), the main raw material constituting the liner paper is manufactured.

Next, a step (S5) of forming a first paper (W1) having a specific tensile strength in the longitudinal and transverse directions by spraying the main raw material with the long net paper machine (30) is performed.

In step S5, the first raw material supply unit 10, strictly speaking, the main raw material diluted to 0.2% is injected into the long netting machine 30 through the nozzle 12 installed in the head box 11, and the long net conveyor 31 ) is a step of forming the first paper (W1) on.

At this time, since the first paper 31 is transported in the horizontal direction and the long net conveyor 31 with water drainage is formed, the first paper paper W1 formed by the long net conveyor 31 has a specific tensile strength in the longitudinal and transverse directions However, the tensile strength in the longitudinal direction is approximately 60:40 compared to that in the transverse direction.

Next, a second papermaking machine (40) is used to form a second papermaking machine (W2) having a greater difference in tensile strength between the longitudinal and transverse directions compared to the first papermaking machine (W1) (S6) is performed. .

Step (S6) is, in the second raw material supply unit 20 containing the main raw material diluted to 0.2%, the second papermaking on the circular net 41 by fixing the pulp fibers of the main raw material to the circular net 41 that is partially immersed in the main raw material and rotated. This is the step for forming (W2).

At this time, since the second paper (W2) is formed by fixing the pulp fibers of the main raw material diluted with the ring net (41) rotated in the longitudinal direction, the second paper (W2) formed in the ring net (41) is the first paper (W1) It has a larger tensile strength difference between the longitudinal and transverse directions compared to , and more specifically, the tensile strength in the longitudinal direction is greater than the tensile strength in the transverse direction. This is because the entangled state of the fibers in the longitudinal direction is uniform because the pulp fibers are long. This second paper (W2) has a greater tensile strength in the longitudinal direction than that in the transverse direction at a ratio of around 80:20. That is, the difference in tensile strength between the longitudinal direction and the transverse direction in the second paper stock W1 formed in step S6 is the tensile strength between the longitudinal direction and the transverse direction in the first paper W1 in step 52 will be greater than the difference.

On the other hand, step (S6) performs the step (S6-1) of forming an artificial flow and vortex of the main raw material around the ring net (41) while the second papermaking (W2) is formed. Step (S6-1) is performed by rotating the first and second wing rollers 21 and 22 completely immersed in the main raw material contained in the first and second raw material supply units 20 in the opposite direction to the circular net 41. By this step (S6-1), a vortex is formed around the lower surface and side surface of the ring net 41 so that the pulp fiber concentration distribution is constant around the ring net 41 while the second papermaking W2 is formed, Accordingly, the second paper W2 having a certain thickness can be continuously formed.

Next, a step (S7) of laminating the first paper paper (W1) formed by the long netting machine 30 with the second paper paper (W2) formed by the round netting paper machine 40 to form a laminated product (W) is performed. do.

Step S7 is performed by the first transfer unit 60 that is endlessly transported between the long net paper machine 30, the round net paper machine 40 and the Yankee dryer 50, and the first transfer unit 60 After the first felt conveyor 61 adsorbs and separates the first paper paper W1 from the long net conveyor 31, transfers it to the circular net paper machine 40, and then laminates it with the second paper paper formed in the circular net 41. It is a step.

On the other hand, step S7 further includes a step (S7-1) of spraying a reinforcing agent to the back of the first paper W1 transferred to the circular mesh paper machine 40.

Step (S7-1) is performed by the reinforcing agent supply unit 100 installed between the long netting machine 30 and the round netting machine 40, and the reinforcing agent supplying unit 100 is carried by the first felt conveyor 61. This is a step of spraying and supplying a reinforcing agent for reinforcing the binding force with the second paper paper W2 to the first paper paper W1 being transferred. At this time, the reinforcing agent injected and supplied to the back of the first paper (W1) may be starch or a strength enhancer, and the bonding strength of the first paper (W1) with the second paper (W2) is increased by this reinforcing agent.

Next, a step (S8) of compressing and dehydrating the laminated product (W) is performed.

In step (S8), the lamination result (W) is the lower dehydration roller 71 and the upper dehydration roller 72 of the compression dehydration unit 70 located on the side of the Yankee dryer 50 together with the first felt conveyor 61 Through this process, the moisture content of the laminated product (W) is in the range of 55 to 75%, preferably 65%.

The combined yield of the laminating product (W) transported to the squeezing and dehydrating unit 70 is close to 90%, and as such a laminating product (W) passes through the squeezing and dehydrating unit 70, a water content suitable for forming wrinkles to be described later is obtained. is to become

If the moisture content of the laminated product (W) is 75% or more, wrinkles are not easily generated in the laminated product, and at the same time, the laminated product (W) is not sufficiently dried during the drying process in the Yankee dryer 50, If the moisture content is less than 55%, the powder (paper dust) is generated in the process of forming wrinkles, which can contaminate the surroundings.

Next, a step (S9) of forming wrinkles (CREPE) on the compressed and dehydrated laminated product (W) is performed.

In step S9, as shown in FIG. 4, the doctor blade 91 of the crepe forming unit 90 is obliquely adhered to the upper dehydrating roller 72 of the squeezing and dehydrating unit 70, and the lower dehydrating roller 71 and the upper dehydration roller 72 by making the conveying speed of the laminating result (W) faster than the conveying speed of the laminating result (W) wound around the heating drum 51 of the Yankee dryer and being transferred. That is, the speed at which the laminated product (W) passes through the lower dehydrating roller 71 and the upper dehydrating roller 72 is faster than the speed at which the heating drum 51 is wound, and the doctor blade 91 moves through the upper dehydrating roller 72 ), to form a plurality of wrinkles (K) on the laminated result (W) by obliquely adhering to the.

Since this step (S9) proceeds immediately after the lamination result (W) is compressed and dehydrated, it is possible to prevent the occurrence of wrinkles in the process of forming wrinkles (K), and the wrinkles (K) increase the elongation of the liner paper. do not tear easily.

If the wrinkles (K) are performed in a state in which the laminated product (W) is completely dry, a large amount of dust is generated in the process of forming wrinkles, and these seeds may be attached to the liner and contaminate the medical tool when packaging the medical tool. there is.

The wrinkles formed on the lamination result (W) increase the elongation of the completed liner paper, so that durability that is not easily torn by sharp parts of the medical device can be realized, and by making it bulky as a whole, a lot of body fluid or sterilized water on the medical device can absorb

And, by performing the step (S10) of drying the wrinkled laminated product (W), the medical liner of the present invention is completed.

Through this series of steps (S1) to (S10), a second paper paper (W2) having the same tensile strength as the first paper paper (W1) having different tensile strengths in the longitudinal and transverse directions is manufactured, and the first and second By laminating the paper (W1) (W2), it is possible to realize wet paper power that is not easily damaged while effectively absorbing body fluid or sterilized water on the medical device.

In this way, according to the present invention, it is possible to realize a large amount of medical liner that is not easily crushed or damaged while effectively absorbing bodily fluid or sterilized water on medical instruments during medical practice.

In addition, since the liner paper is made of 100% natural materials such as softwood pulp and hardwood pulp, it is environmentally friendly because it naturally rots and disappears when discarded.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is only exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

I0 ... first raw material supply unit 20 ... second raw material supply unit
30 ... long net machine 31 ... long net conveyor
32 ... Long net roller 40 ... Circular net keeper
41 ... illusion 42 ... illusion body
50 ... Yankee dryer 51 ... Heating drum
52 ... drying box 53 ... heating blower
60 ... first transfer unit 61 ... first felt conveyor
62 ... Circular mesh adhesion roller 63 ... Long mesh adhesion roller
70 ... compression dewatering unit 71 ... lower dehydration roller
72 ... upper dewatering roller 80 ... second transfer unit
81 ... second felt conveyor 82 ... drum guide roller
90 ... crepe forming part 91 ... doctor blade
92 ... Blade body 100 ... Reinforcement supply unit

Claims (6)

preparing a main raw material by mixing a wet strength enhancing agent for enhancing wet strength with the beating mixture (C) (S4);
Forming a first paper (W1) having a specific tensile strength in the longitudinal and transverse directions using the main raw material by using a long net paper machine (30) (S5);
Forming a second paper-paper (W2) having a greater tensile strength difference between the longitudinal and transverse directions than the first paper-paper (W1) using the main raw material by using a circular mesh paper machine (40) (S6);
A step (S7) of laminating the first paper paper (W1) formed by the long net paper machine (30) with the second paper paper (W2) formed by the round net paper machine (40) to form a laminated product (W); and
A method for manufacturing medical tray liner paper, characterized in that it comprises a; step (S8) of compressing and dewatering the lamination result (W). According to claim 1,
mixing coniferous pulp with water to dissociate, and cutting and fibrillating the dissociated fibers to obtain a first refined product (C1) (S1);
obtaining a second refined material (C2) in which hardwood pulp, which is shorter and thicker than softwood pulp, is mixed with water to dissociate, and the dissociated fibers are cut and fibrillated (S2);
A step (S3) of obtaining a beaten mixture (C) by mixing the first refined material (C1) obtained in the step (S1) and the second refined material (C2) obtained in the second beating step (S2); Characterized in that, a method for manufacturing medical tray liner paper. According to claim 2,
In the step (S3), the beating mixture (C) is implemented by mixing 10 to 30 parts by weight of the second beating material (C2) with 100 parts by weight of the first beating material (C1). Tray liner paper manufacturing method. The method of claim 1, wherein the step (S7),
The method for manufacturing medical tray liner paper, characterized in that it further comprises a step (S7-1) of spraying a reinforcing agent to the back surface of the first paper paper (W1) transferred to the circular mesh paper machine (40). According to claim 1,
Forming wrinkles (CREPE) on the compressed and dehydrated laminated product (W) (S9); and
Drying the wrinkled laminated product (W) (S10); characterized in that it further comprises, the medical tray liner manufacturing method. The method of claim 5, wherein the step (S9) is,
The doctor blade 91 of the crepe forming unit 90 is obliquely adhered to the upper dehydration roller 72 of the compression dehydration unit 70, and the lower dehydration roller 71 and the upper dehydration roller 72 pass through Laminate A method for manufacturing medical tray liner paper, characterized in that the conveying speed of the resultant (W) is made faster than the conveying speed of the resultant lamination (W) that is wound and transferred to the heating drum (51) of the Yankee dryer.

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