JPH11208178A - Manufacture of winding pen cylinder using polymer synthetic sheet and product thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a winding pen cylinder by using a polymer synthetic sheet for obtaining use durability of an enclosed pen core and stability of a quality by lowering a cost by simplifying a processing steps and avoiding a disconnection of an outer layer on the way at the time of peeling off in the case of using and its product. SOLUTION: The method for manufacturing a pen cylinder by winding a sheet material of a polymer synthetic sheet around a bar-like pen core comprises the steps of previously cutting the synthetic sheet formed by unidirectionally rolling substantially in a rectangular sheet material so that an edge of a long side of the rectangle has a predetermined oblique angle to the rolling direction (S31), coating one surface of the cut sheet material with a glue (S32), and forming the pen cylinder (S33) by winding the sheet material coated with the glue around the core so that its short side becomes substantially parallel to the axis of the core.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for manufacturing a paper-wound pen barrel, and more particularly to a method for manufacturing a paper-wound pen barrel using polymer synthetic paper and a product thereof.

[0002]

2. Description of the Related Art Wound-type pens are widely used for pen-type erasers, crayons, cosmetic pens and the like because of their convenience in use. When used, when the pen core at the tip is exhausted, a tear is formed in the pen cylinder by wrapping around the pen core and drawing a cotton line for tearing to be attached to the paper constituting the pen cylinder And then take the edge of the paper at the breach,
A new one-stage pen core can be exposed by peeling the paper on the outer layer of the pen cylinder perpendicular to the tear line previously formed on the paper. FIG. 1 shows a method of manufacturing a conventional paper-wound pen cylinder. FIG.
2 (A) and FIG. 2 (B) are sheets of a conventional "wood-free printing paper" wrapping pen barrel manufactured according to the method of manufacturing a paper wrapping pen barrel shown in FIG. Shows the shape material and the whole product. As shown in FIGS. 1 and 2, the conventional method of manufacturing a paper-wound pen cylinder is as follows:
Step 2: cutting the sheet material 21 of the outer layer constituting the pen cylinder in a future use in order to easily tear the sheet material 21 by pressing or the like. Forming a plurality of intermittent tear lines 22 having an edge and a predetermined angle of inclination; step 3: attaching a cotton line 23 to one surface of the sheet material 21; step 4: sheet material Applying a glue to the end of 21; and step 5: winding the sheet material 21 to form a wound pen cylinder.

[0003] In the execution of the winding operation in step 5, when the pen core is hard or semi-rigid, the sheet-shaped material 21 is wound directly around the pen core. When the pen core is a soft cosmetic or the like, first, the sheet material 21 is wound around a hard core such as an iron product to form a pen cylinder. Then, the hard core is taken out and the center of the pen cylinder is filled with a cosmetic material.

However, when this high quality printing paper pen cylinder manufactured by the above manufacturing method is wound around a core such as cosmetics or an eraser, the core material is made of a large amount of oil, fragrance, grease or the like. In addition to containing additives, high quality printing papers have a high absorbency for these additives, which sometimes causes the additives to be absorbed, migrated, or diffused in the scent In addition, there is a problem that the product is easily deteriorated and the storage stability is deteriorated. In addition, since high quality printing paper is manufactured from natural fibers, its tear strength is not uniform. Therefore, even if an intermittent tear line is formed in the pen cylinder in advance, the paper does not break when tearing. In some cases, it does not tear smoothly due to the uniform characteristics, and it often breaks in the middle, which is inconvenient to use. This is another disadvantage of the conventional high quality printing paper pen cylinder. If the pen core is soft, the entire pen may be broken at a tear line formed in advance. In addition, the high moisture absorption characteristics of the high-quality printing paper itself affect the sticking operation and the tension control when the sheet is wound around the core body, causing instability of the operation, causing many defective products and increasing costs. Also, because it is difficult to control the thickness of high-quality printing paper, even if a sheet of a fixed length is wound around the same core to form a pen cylinder, it can Since the outer diameter is often uneven, problems such as dimensional matching between the outer diameter of the pen cylinder and the inner diameter of the pen cap arise. In addition, the manufacturing process of the conventional high-quality printing paper wound pen cylinder is complicated and complicated, and the degree of relying on manual labor is too high, so that it is impossible to reduce the cost.

The first object of the present invention is to simplify the production process in view of the fact that the conventional pen body using high-quality printing paper has various problems in terms of function and cost.
An object of the present invention is to provide a method of manufacturing a wound pen cylinder using polymer synthetic paper, which can significantly reduce costs, and a product thereof.

A second object of the present invention is to provide a polymer synthetic paper having the property of having a relatively high tear strength in a first direction and having a relatively low tear strength in a second direction orthogonal to the first direction. By using, the outer layer of the pen cylinder can be smoothly torn perpendicularly to a predetermined direction during use, and a method of manufacturing a wound pen cylinder using polymer synthetic paper which is not likely to be broken in the middle and its use. To provide products.

A third object of the present invention is to provide a pen core made of a polymer synthetic paper which does not absorb additives and moisture, so that a pen core such as a cosmetic or an eraser wrapped in the pen cylinder is formed. However, the use of polymer synthetic paper that can avoid deterioration due to the transfer of additives contained therein to the pen cylinder, improve storage stability, and stabilize the quality of the pen cylinder To provide a method of manufacturing a wound pen cylinder and a product thereof.

[0008]

The invention according to claim 1 of the present invention relates to a manufacturing method for forming a pen cylinder by winding a sheet material of polymer synthetic paper around a rod-shaped pen core. (A) cutting the polymer synthetic paper formed by the unidirectional rolling into a substantially rectangular sheet material, and making the edge of the long side of the rectangle have a predetermined inclination angle with respect to the rolling direction; (A)
Applying glue to one surface of the sheet material cut in step (b); and winding the sheet material around the pen core such that the short side thereof is substantially parallel to the axis of the pen core. Step (c) of forming a cylindrical body
And a method of manufacturing a wound pen cylinder using polymer synthetic paper.

[0009] In addition to the method of manufacturing the above-mentioned wrapping pen cylinder of the polymer synthetic paper, preferably, in the step (a), at the same time as or after the cutting operation, the edge of the short side of the rectangle of the sheet material is formed. Perpendicularly, further form a plurality of short tear lines or zigzag cutouts, or, after the step (c), perpendicular to the edge of the terminal of the outermost layer of the sheet material formed in the pen cylinder. To form a plurality of tear lines.

[0010] The present invention also provides a winding pen cylinder using polymer synthetic paper manufactured by the above manufacturing method.

Other features of the present invention and its specific structure, functions and effects will be described in detail below with reference to the accompanying drawings.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a method of manufacturing a first embodiment of a winding pen cylinder using polymer synthetic paper according to the present invention will be described with reference to FIG. This manufacturing method includes the following steps: Step 31: Cutting a polymer synthetic paper formed in advance by unidirectional rolling into a substantially rectangular sheet-like material, and forming an edge of a long side of the rectangle at a predetermined inclination with respect to the rolling direction. Forming a plurality of short tear lines or zigzag cutouts at an angle and at the same time as or after the cutting operation, perpendicular to the short side edge of the sheet material; Applying a glue to one surface of the sheet material cut in step 31; step 33: applying the substantially rectangular sheet material so that the short side thereof is substantially parallel to the axis of the pen core material; Wrapping the outer periphery of a pen core or another type of hard core rod to form a wrapped pen cylinder.

FIG. 4 shows a step of cutting a sheet material for forming a wound pen cylinder using polymer synthetic paper according to the manufacturing method.

As shown in FIG. 4, polypropylene (P
P), polyethylene terephthalate (PET), polystyrene (PS), polyethylene (PE) ..., etc.
It has a considerably high tear strength perpendicular to the rolling direction and a fairly low tear strength in a direction perpendicular to the rolling direction. The polymer synthetic paper 41 formed by the unidirectional rolling is cut into a substantially rectangular shape having a long side L and a short side W as shown in FIG. sheet material 42 to have θ
To form The purpose of setting the inclination angle θ will be described later.

Next, FIG. 5A will be referred to. Simultaneously with or after the cutting operation on the sheet-like material 42, a plurality of short tear lines 43 are formed perpendicular to the edge of the short side W of the rectangle. FIG.
As shown in (B), by winding the sheet-like material 42 around the outer periphery of the rod-shaped pen core 8, a wound pen cylinder 45 using polymer synthetic paper can be formed. In use, the outer layer of the pen cylinder 45 is wound in the opposite direction from the tip of the pen core 8 in the direction perpendicular to the rolling direction (not shown) by grasping the middle part of the adjacent short tear lines 43. Since the inclination angle θ is provided, a portion where the outer layer is peeled is formed in a tapered spiral shape.

Further, a zigzag cutout 44 as shown in FIG. 6A may be formed in place of the short tear line 43, perpendicular to the edge of the short side W of the sheet material 42. Good.
Sheet material 42 having this zigzag cutout 44
Is wound around the outer periphery of the rod-shaped pen core 8,
As shown in FIG. 6B, a wound pen cylinder 46 using polymer synthetic paper can be formed. The function of the zigzag cutout 44 is similar to that of the short tear line 43 described above.

Next, with reference to FIG. 7, a description will be given of a method of manufacturing the second embodiment of the wound pen cylinder using polymer synthetic paper of the present invention. The manufacturing method includes: Step 71: cutting a polymer synthetic paper formed in advance by unidirectional rolling into a substantially rectangular sheet-like material, and forming an edge of a long side of the rectangle at a predetermined inclination with respect to the rolling direction. Providing an angle; step 72: applying glue to one surface of the sheet material cut in step 71; step 73: applying the substantially rectangular sheet material to a pen core having a short side thereof. Forming a wound pen cylinder by winding it around a pen core or a hard rod-shaped core so as to be substantially parallel to the axis of the material; and step 74: a sheet-like shape already formed on the pen cylinder. Forming a plurality of short tear lines orthogonal to the terminal edge of the outermost layer of the material.

Step 7 of the manufacturing method according to the second embodiment
Steps 2 and 73 are the same as steps 32 and 33 of the manufacturing method of the first embodiment, respectively. The difference is that in step 71 of the present manufacturing method, as in step 31 of the above-described manufacturing method, the cutting operation is performed simultaneously or simultaneously. Thereafter, a plurality of short tear lines or zigzag cutouts are not formed in advance in a direction perpendicular to the short side of the rectangular sheet material. Instead,
According to the present manufacturing method, after the pen cylinder 47 (see FIG. 8) is formed, a plurality of pen cylinders 47 are formed in a step 74 directly at right angles to the outer edge 49 of the outermost layer of the sheet material of the pen cylinder 47. A technique of forming a short tear line 48 is employed. The action of this tear line 48 is the same as the action of the short tear line 43 described above.

[0019]

The manufacturing method of the first embodiment and the manufacturing method of the second embodiment according to the present invention, and the pen cylinder manufactured by the manufacturing method can simplify the processing steps, thereby reducing the cost. In addition, when the outer layer of the wound pen cylinder is peeled off during use, it can be prevented from being cut off in the middle. Moreover, the present invention is an excellent invention that can secure the use durability and the quality stability of the pen core wrapped by the pen cylinder.

Although the preferred embodiment of the present invention has been described above, this embodiment is merely provided for explanation and does not limit the scope of the present invention. The present invention can be practiced even if other changes are made within the scope of the substantial content of the present invention. Therefore, the scope of the present invention is based on the description of the claims in the claims.

[Brief description of the drawings]

FIG. 1 is a process flow chart of a conventional method of manufacturing a paper-wound pen cylinder.

2A is a developed plan view of a sheet-like material for forming a pen cylinder manufactured according to the conventional method of manufacturing a paper-wrapped pen cylinder of FIG. 1, and FIG. It is a front view which shows the whole product including the pen cylinder manufactured according to the manufacturing method of the paper winding pen cylinder.

FIG. 3 is a process flow chart of a method for manufacturing a winding pen cylinder using polymer synthetic paper according to the first embodiment of the present invention.

FIG. 4 is a plan view showing a step of cutting a sheet-like material for forming a winding pen cylinder body by the manufacturing method of the first embodiment of FIG. 3;

FIG. 5A is a plan view showing a case where a plurality of short tear lines are formed in advance at right angles to the short sides of the rectangular sheet-shaped material shown in FIG. 4 at the same time, and FIG. It is a front view which shows the product of the winding pen cylinder body using the polymer synthetic paper of this invention manufactured by the sheet-shaped raw material shown to FIG.

FIG. 6A is a plan view showing a case where a plurality of zigzag cutouts are formed in advance along the short edge of the rectangular sheet-like material shown in FIG. (B) is a front view showing a product of a pen cylinder body using another polymer synthetic paper of the present invention manufactured by the sheet-like material shown in (A).

FIG. 7 is a process flowchart of a method for manufacturing a pen cylinder using polymer synthetic paper according to a second embodiment of the present invention.

8 is a front view showing a product of a pen cylinder using polymer synthetic paper formed by the manufacturing method of the second embodiment of FIG. 7;

Claims (4)

[Claims] In a manufacturing method for forming a pen cylinder by winding a sheet material of a polymer synthetic paper around a rod-shaped pen core, a polymer synthetic paper formed in advance by unidirectional rolling is substantially (A) cutting into a rectangular sheet material, and making the edge of the long side of the rectangle have a predetermined inclination angle with respect to the rolling direction; and gluing one surface of the sheet material cut in step (a). (B) applying the sheet material, and (c) forming a pen cylinder by winding the sheet material around the pen core so that the short side thereof is substantially parallel to the axis of the pen core. A method for manufacturing a wound pen cylinder using polymer synthetic paper, characterized by having: 2. In the step (a), at the same time as or after the cutting operation, a plurality of short tear lines or zigzag-shaped cutouts are formed perpendicular to the edges of the rectangular short sides of the sheet material. The method for manufacturing a wound pen cylinder using polymer synthetic paper according to claim 1. 3. The method according to claim 1, further comprising, after the step (c), forming a plurality of short tear lines perpendicular to the end edge of the outermost layer of the sheet material formed in the pen cylinder. Item 4. A method for producing a wound pen cylinder using the polymer synthetic paper according to Item 1. 4. A winding pen cylinder using polymer synthetic paper manufactured by the manufacturing method according to claim 1.