JP2000185484A - Calendar and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a calendar bound with a thread of which the opposite ends of a thread-bound part hardly become loose and which is excellent in outward appearance. SOLUTION: On the occasion of forming a calendar 1 by binding a bundle 3 of a plurality of calendar paper leaves 2 with a thread 5 along the upper end edge of the bundle, a thread-bound part 6 is formed by single-thread chain stitch, while a needle is passed twice through the second stitch at the start of sewing and through the final stitch to make the thread entangled and thereby knots 11 and 12 are formed to make the thread hardly become loose. Moreover, the end part 5c of the thread at the start of sewing is cut in the vicinity of the surface of the calendar, while the thread 5d at the end of sewing is drawn out to the rear side of the calendar and cut to be in a prescribed length. Thereby the outward appearance of the calendar is made excellent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall-mounted calendar in which a plurality of calender sheets are stapled on top of them, and a method of manufacturing the same.

[0002]

2. Description of the Related Art Heretofore, as a calendar for this type of wall hanging, a plurality of calender sheets are sandwiched between two folded thick papers at the upper edges, and the calender paper and the thick paper are threaded in the vicinity of the lower edge of the thick paper. (See, for example, JP-A-9-58151).

[0003]

The thread-binding type calendar described in the prior art does not use metal or the like as a constituent member, and is composed of only paper and thread. Although it can be discarded as it is, or it can be easily broken by hand and discarded, there is an advantage that it greatly contributes to avoiding garbage pollution, but since the end treatment of the bound thread is not performed, the thread is frayed There is a problem that the appearance deteriorates, and in the worst case, the calendar papers fall apart.

In the case where thick paper sandwiching the upper edge of a sheet bundle is not used as in the above-mentioned calender, it is usual to sew only the sheet bundle and carry out cross winding from above to prevent fraying. However, this type of calendar has a problem in that it is necessary to wind a cloth after the sewing step, so that the number of steps is increased, and an extra cloth is required, resulting in an increase in cost.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a calender having a good appearance and a high productivity which can prevent the yarn from being frayed without cross winding. The purpose is to do.

[0006]

In order to achieve the above-mentioned object, according to the calendar of the present invention, a thread binding portion for binding a calendar sheet bundle with a thread is formed by single thread ring stitching and at least two thread stitches at the start of sewing. The yarn is entangled twice with the needle through the needle and the final eye to form a knot. According to the present invention, by adopting the single thread ring stitching, productivity can be increased and a knot can be formed by simply passing the needle through the same eye twice, and at least the second stitch at the start of sewing and the final stitch By tying the knot through the eye twice, it is possible to prevent the threads at both ends of the thread binding portion from fraying and to always improve the appearance.

Here, the thread binding portion is formed by single thread ring stitching through the needle of a sewing machine from the surface side of the calender, and the end of the thread at the start of sewing is cut in the vicinity of the calender surface.
If the end of the thread at the end of sewing is pulled out to the back side of the calendar, only one thread is present along the seam on the surface of the calendar, so that the appearance is further improved.

According to the method of manufacturing a calender of the present invention, a work formed by setting a plurality of calender sheets in a state to be bound is passed through a sewing machine for a single thread ring stitch, and a thread at the start of sewing is held by a thread fixing device. Start single thread chain stitching with
Make a knot by tying the thread through the needle twice at least for the second needle, and then perform single thread ring stitching, and tie the thread through the needle again at least on the last eye and apply tension to the thread to make a tightly knotted By this method, a knot tightly fastened to both ends of the thread binding portion can be formed, and the above-described calender of the present invention can be manufactured.

Here, if the yarn is entangled twice with the needle at the final stitch and then the yarn between the work and the needle is cut and the work is moved, the yarn that has been hung on the looper when the work is moved is obtained. Is pulled out through the work, and a large tension is applied to the yarn by the frictional resistance at that time, so that the knot can be strongly tightened.

Further, when the work is passed through a sewing machine to perform single thread ring stitching, single thread ring stitching is performed through the work so that the front side of a calendar formed from the work is the needle side of the sewing machine, and the thread fixing is performed. The thread extending between the device and the work is cut with a fixed knife disposed at a position where the sewn portion of the work runs and near the surface of the work, and is extended between the work and the needle at the end of sewing. The thread on the work side is cut while holding the remaining thread with the thread fixing device, and the thread on the back side of the work is sent to the looper while the thread is fed to the back side of the work. If the thread is cut and removed, there is only one thread along the seam on the surface of the sewn calender, and the thread at the beginning and end of sewing becomes almost inconspicuous. Capable of producing a very good-looking calendar.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of a calender according to the present invention. FIG. 1 (a) is a front view of the calender, FIG. 1 (b) is a side view of the calender, and FIG. FIG. 1D is a schematic perspective view showing the structure of the stitch at the start of the sewing of the binding portion (portion c in FIG. 1A), and FIG. 1D shows the stitch at the end of the thread binding portion (portion d in FIG. 1A). It is a schematic perspective view which shows a structure. The calendar 1 sandwiches the upper end of a sheet bundle 3 made up of a predetermined number of collated calendar sheets 2 with the folded cardboard 4 and binds the cardboard 4 with the thread 5 along the upper edge of the sheet bundle 3. It is configured together. Hereinafter, a portion bound by the thread 5 is referred to as a thread binding section 6. In the illustrated example, each calendar sheet 2 has a calendar sheet 2
Are provided.
On the other hand, the cardboard 4 is made of a material selected from cardboard, paper having sufficient strength, Japanese paper, and cardboard obtained by laminating (attaching) a plurality of sheets of paper to have strength. 3 is the same length as the width. Also, cardboard 4 folded in two
A round hole 9 for suspension is formed at a central position near the upper side. In addition, since the thumbtack is pierced in the thick paper 4, the round hole 9
Is not required. The cardboard 4 itself is not essential to the present invention. For example, when the calender sheet 2 has a necessary strength, a thin sheet may be used instead of the cardboard 4 or a calender sheet disposed on the outermost surface. The configuration may be such that the leaf 2 is lengthened and its upper end is folded to cover the upper end of another calendar sheet, or the paper covering the upper end of the sheet bundle is not used at all.

The thread binding portion 6 that binds the sheet bundle 3 and the cardboard 4 is formed in a straight line in the width direction substantially over the entire area except for small regions at both ends of the sheet bundle 3 and the cardboard 4. I have. The reason for providing the portions without the thread binding portions 6 at both ends is that the position where the needle is first passed and the position where the needle is finally passed when sewing with the sewing machine may be caught on the edge of the calendar 1 and cause trouble. This is because the distance from the end of the calender 1 is set so that there is no thread binding portion at both ends. On the other hand, if the region without the thread binding portion becomes longer, the calender sheet 3 is scattered at that portion. Therefore, from this point, the shorter is better, and usually it is preferably about 20 mm or less. In the embodiment shown in the drawings, one thread binding portion 6 is provided over substantially the entire width of the calendar 1, but instead, a plurality of short thread binding portions are arranged in a row at intervals. Or, a change such as arranging the thread binding portions in a plurality of rows may be added.

As shown in FIGS. 1C and 1D, the thread binding section 6 is formed by single thread ring stitching with one thread 5. When performing the single thread ring stitching, the needle of the sewing machine is passed through from the front side of the calendar 1, so that one thread 5a passes between each stitch on the front side of the calendar, and the loop 5b Are formed. Further, in the region at the start of sewing, the thread is entangled by passing the needle through the second needle A twice to form the knot 11. In the region at the end of sewing, the thread is entangled by passing the needle through the final eye B twice to form the knot 12. Is formed. Excess thread at the start of sewing is removed by cutting near the surface of the calender. For this reason, the end 5c of the thread slightly looks into the calender surface side. Hardly notice when you are, so they don't look bad. On the other hand, the thread 5d at the end of sewing is pulled out to the back side of the calendar and cut to an appropriate length, and cannot be seen from the front side of the calendar. Thus, the calendar 1 shown in FIG.
By forming the knots 11 and 12 at both ends of the thread binding section 6, no fraying of the thread occurs, and the appearance does not deteriorate, and the calendar sheet 2 has never been said to be loose. Furthermore, the front side of the calendar 1 is simply a single thread 5
It looks very good because it only looks like a is arranged in a straight line. The color of the thread 5 used for the thread binding unit 6 can be arbitrarily selected. For example, the color of the thread 5 may be inconspicuous as a color printed on the thick paper 4, or may be gold,
Use it as a part of the design as a conspicuous color such as red,
The effect on design may be exhibited.

Next, the advantage of using the single thread ring stitch for forming the thread binding portion 6 will be further described. As a sewing method of the cloth, in addition to the above-described single thread ring sewing, as a representative one,
A double chain stitch using the upper thread 15 and the lower thread 16 shown in FIG. 2A and a lockstitch using the upper thread 17 and the lower thread 18 shown in FIG. 2B are known. Can also be used to bind calendars. However, double chain stitching cannot be applied to the calendar of the present invention because it is not possible to perform a fraying prevention process at the start and end of sewing.
On the other hand, in the main sewing, the fray prevention processing can be performed by performing the three-stitch reverse stitching at both the sewing start and the sewing end. However, in the portion where the three stitch reverse stitching is performed, the appearance becomes poor because the thread becomes double or a plurality of stitches are formed. In addition, for the reverse sewing, it is necessary to convey the work (the thick paper 4 attached to the upper end edge of the paper bundle 3) in the reverse direction, which significantly lowers the productivity. In addition, since the lower thread needs to be wound around the bobbin and supplied to the sewing machine bed, the bobbin needs to be replaced once every 15 m to 40 m, which also lowers productivity. Furthermore, in the sewing machine that performs lock stitching, the mechanism of the bed portion of the sewing machine is complicated to scoop up the upper thread while supplying the lower thread with a rotary hook incorporating a bobbin. When the transport system is incorporated, it becomes difficult to incorporate the transport system, and the transport system itself requires a reversing mechanism for reverse stitching and becomes complicated. On the other hand, in the present invention, since the single thread ring stitching is adopted, the sewing is started at the second stitch at the second stitch.
By passing the needle through the needle and by passing the needle through the final end twice, a knot can be formed to prevent loosening, and the productivity is higher than that of the lockstitch. Moreover, in single thread chain stitching, only one thread needs to be supplied, and the thread can be fed from the outside of the sewing machine by winding out a thread wound several thousand meters. Therefore, the frequency of replacement is extremely low. Productivity is better than. Furthermore, the mechanism of the sewing machine bed is simple because the looper simply rotates at a fixed position in order to catch the thread coming from above, so that the work transfer system can be easily incorporated, and the transfer system itself can be installed. Is simple because there is no need to reverse.

Next, a work made by setting the cardboard 4 along the upper edge of the sheet bundle 3 is bound by single thread ring stitching.
A method for manufacturing the calendar 1 having the above configuration will be described. As shown in FIG. 3, this single thread chain stitch includes, as shown in FIG. 3, a normal single thread chain stitch sewing machine having a needle 21, a looper 22, and the like, a thread fixing device 24, a fixed knife 25, a thread waste suction hose 26, an automatic A device provided with a thread cutting device 27, a work transfer device and the like is used.
Here, the yarn fixing device 24 includes a clamp claw 24a and a fixed claw 24b for fixing and holding the yarn 5, a driving device 24c for reciprocating the clamp claw 24a, and a clamp claw 2
4a is provided with a cutter 24d for cutting the yarn 5 on the work side when the yarn 5 is pulled in and clamped (see FIG. 6 (f)). The fixed knife 25 is arranged at a position where the sewn portion of the work 30 runs and at a fixed position near the surface of the work, and is connected between the thread fixing device 24 and the work 30 when the work 30 is sent. The thread is automatically hooked on the fixed knife 25 and cut. The lint suction hose 26 is arranged at a position where the thread separated by the fixed knife 25 can be sucked. The automatic thread cutting device 27 sucks an extra thread extending to the lower surface side of the work 30 and cuts it at an appropriate length position. Is also located downstream. The work transfer device intermittently transfers a work 30 having a configuration in which the upper end of a sheet bundle 3 shown in FIG. However, as described later, at least at the second stitch at the start of sewing and at the last stitch, the needle can be passed through the same position twice,
The configuration is such that the work 30 is not transported.

Before explaining a single thread chain stitching operation for manufacturing a calendar, a normal single thread chain stitching operation by the needle 21 and the looper 22 will be described with reference to FIG. As shown in FIG. 4A, the loop 5 formed on the lower surface of the work 30
The needle 21 descends and pierces the work 30 in a state where the thread 5e passed through b is looped around the looper 22 and the work 30 is stopped. Then, FIG.
As shown in (b), when the needle 21 is slightly raised from the lowermost point, the thread 5f held by the needle 21 is loosened,
When a loop is formed, the looper 22 is rotating the thread 5f.
The thread 5f is passed through the thread 5e spread by the looper 22. And FIG.
As shown in (c), the needle 21 comes out above the work 30 and the work 30 is fed. Looper 22 continues to rotate,
While pulling in the thread 5f, remove the thread 5e that has been hung earlier. The needle 21 continues to rise, and the balance (not shown)
The thread 5 passing through is pulled up. And FIG. 4 (d)
In FIG. 4, the looper 22 continues to rotate, pulls the thread 5 f to the center, tightens the thread 5 e removed earlier by the balance, and when the work is fed, the thread 5 e is sufficiently tightened. A loop 5b shown in FIG. Thereafter, the same operation is repeated to perform single thread ring sewing.

Next, a method of manufacturing a calendar using the single thread ring stitch will be described. As shown in FIG. 5A, the work 30 (the upper end of the sheet bundle 3 shown in FIG.
Set in a state to be bound and bound)
Is stopped at a predetermined position. Next, FIG.
As shown in FIG. 5B, the needle 21 descends and pierces the work 30 (first stitch), and after the looper 22 hooks the thread 5, it rises to its original position, and as shown in FIG. 30
Moves by one pitch of the seam. The state of the yarn 5 at this time is the state shown in FIG. 7A, and the loop 5e is formed by the looper 22. Next, as shown in FIG. 5D, the needle 21 descends and pierces the work 30 (second needle), and as shown in FIG. 7B, the thread 5f is passed through the loop 5e which has been formed earlier. After the looper 22 hooks it, the needle 21 moves up to its original position. As a result, FIG.
As shown in FIG. 7E and FIG. 7C, the second loop 5f hung on the looper 22 is placed in the loop 5e formed earlier.
Is formed. A thread (not shown) pulls the thread 5 passing through the needle 21, whereby the loop 5 e formed earlier is tightened.

Next, as shown in FIG.
0, the needle 21 pierces the same position (second needle) of the work 30 again, and as shown in FIG. 7D, the thread 5g is passed through the loop 5f formed earlier, and the looper 22 passes the thread 5g. After being hooked, it rises to its original position. As a result, as shown in FIGS. 5 (g) and 7 (e), the loop 5f previously hooked on the looper 22 comes off the looper 22 and becomes a new loop 5g hooked on the looper 22.
Entangled so as to surround the. Thereafter, the work 30 moves by one pitch of the stitch, and during this time, the thread (5) passing through the needle 21 is pulled up by a balance (not shown).
The loop 5f is tightened to form the knot 11 (see FIG. 7F). During these operations, the tip of the thread 5 is fixed by the thread fixing device 24, so that the tension of the thread 5 is not loosened, and the knot 11 tightly tightened so as not to fray is formed.

Thereafter, ordinary single thread ring sewing is performed. Then, the work 30 moves and as shown in FIG.
When the thread 5 extending between the thread fixing device 24 and the work 30 passes through the fixed knife 25, the thread 5 is automatically caught by the fixed knife 25 and cut. Here, by locating the fixed knife 25 near the surface of the work 30, excess yarn can be cut off near the surface of the work 30,
As shown in FIG. 7 (g), the tip 5c of the thread sewn the work 30 can be set at substantially the same position as the thread 5a located on the surface side of the work 30, so that the appearance of the calendar can be maintained. On the other hand, the separated yarn 5i is sucked by the lint suction hose 26 (see FIG. 6A).

Next, the single thread chain stitching of the work 30 is continued, and when the sewing end shown in FIG.
As shown in (c), the needle 21 descends and pierces the work 30 (final eye), and the loop 5 caught on the looper 22
The needle 21 is passed through the j, and the looper 22 hooks the thread 5k passing through the needle 21 to form a new loop 5k (see FIGS. 8A, 8B, and 8C). Then, FIG.
As shown in (d), after the needle 11 returns upward, the needle 21 descends without moving the work 30, and the work 30 is pierced again at the same position (final eye) to form the needle 21 first. Pass through the loop 5k (see FIGS. 8C and 8D),
The looper 22 hooks the thread 5m passing through the needle 21 to form a new loop. Thereafter, as shown in FIG. 6 (e), the needle 21 returns upward, the looper 22 removes the loop 5k formed earlier, and wraps around the new loop 5m (see FIG. 8 (e)). .

Thereafter, as shown in FIG. 6E, when the needle 21 reaches the top dead center, the needle 21 and the looper 22 stop,
The work 30 is sent with the loop 5m hung on the looper 22. In parallel with this operation, the clamp claw 24a of the thread fixing device 24 advances, removes the thread 5i previously gripped, and then extends between the workpiece 30 and the needle 21 as shown in FIG. The thread 5 is retracted by being hooked and held by the fixed claw 24b, and the thread 5n on the work 30 side is cut by the cutter 24d. After that, the work 30 continues to move, and the cut thread 5n is hooked on the looper 22 as shown in FIG. Also, the lower loop 5m [see FIG. 8 (e)]
Is hooked on the looper 22, the loop 5m is pulled by the frictional resistance of the looper 22 and the thread passing through the work by the movement of the work,
The loop 5k is tightened tightly, forming a tightly knotted knot 12 without fraying.

Thereafter, as shown in FIG. 6 (h), when the extra thread 5n pulled downward by the movement of the work 30 reaches the position of the automatic thread cutting device 27, the automatic thread cutting device 27 Is cut into an appropriate length while sucking, to obtain an end yarn 5d of an appropriate length (see FIG. 8 (f)). Thus, the sewing of the work 30 is completed, and the calender 1 having the form shown in FIG. 1 is formed.

In the above-described embodiment, after finishing the final stitch, the work 30 is fed while the thread 5 is gripped and cut by the thread fixing device 24, and the frictional resistance of the thread to the looper 22 and the like is reduced. Apply tension to the loop 5m using
Although the knot 12 is configured to be tightened, the work 30 is conveyed before cutting the thread 5 and the knot 1 is
After sufficiently tightening the thread 2, the thread 5 may be cut and pulled down. At this time, when the work 30 is transported, the thread 5 passing through the needle 21 is fixed by an appropriate means. This may increase the tension of the thread and ensure that the knot is securely tightened. In this case, work 3
The feed speed of 0 may be the same as in the case of ordinary single thread ring sewing. Further, in the above embodiment, the knot is formed by passing the needle twice at the second and the last stitches at the start of sewing to prevent fraying. However, if necessary, the knot is formed twice at an appropriate position between the second stitch and the last stitch. Modifications such as forming a knot through a needle may be made.

[0025]

As described above, the calendar of the present invention is
The thread binding part is formed by single thread ring stitching, and the knot is formed by passing the needle twice at least at the second stitch at the start of sewing and at the last stitch, so that the thread may fray and make it look bad, or the calendar paper may fall apart. This has the effect of being able to withstand long-term use without increasing the productivity, and of having good productivity.

Here, the thread binding portion is formed by single thread ring stitching through the needle of a sewing machine from the surface side of the calender, and the end of the thread at the start of sewing is cut near the surface of the calender,
If the end of the thread at the end of sewing is drawn to the back side of the calender, only one thread is present along the seam on the surface of the calender, and an effect of very good appearance can be obtained. Also, by using the thread used for the thread binding portion as a part of the design, the appearance can be further improved.

In the method for manufacturing a calendar according to the present invention, a work in which a bundle of a plurality of calender sheets is set in a state to be bound is passed through a sewing machine for single thread ring stitching, and a thread at the start of sewing is passed through. Start the single thread chain stitch while holding it with the thread fixing device, tie the thread through the needle twice at least for the second stitch to form a knot, then perform the single thread chain stitch, and then pass the needle again at least twice at the last stitch Since the knot is tightly knotted by tangling the yarn and applying tension to the yarn, knots that are strongly tightened at both ends of the thread binding portion can be formed, and the above-described calender of the present invention can be manufactured with high productivity. It has the effect that it can be manufactured.

Here, if the yarn is entangled with the thread twice at the final stitch, the yarn between the work and the needle is cut, and the work is moved, the frictional resistance of the yarn that is cut and pulled out is removed. With this, a large tension is applied to the yarn, the knot can be strongly tightened, the knot tightly tightened can be formed by a simple operation, and the effect of manufacturing a calender having a thread binding portion that is less likely to fray can be obtained.

Further, when the work is passed through the sewing machine to perform single thread ring stitching, the work is subjected to single thread ring stitching so that the front side of the calendar formed from the work is the needle side of the sewing machine, and the thread fixing is performed. The thread extending between the device and the work is cut with a fixed knife disposed at a position where the sewn portion of the work runs and near the surface of the work, and is extended between the work and the needle at the end of sewing. The thread on the work side is cut while holding the remaining thread with the thread fixing device, and the thread on the back side of the work is sent to the looper while the thread is fed to the back side of the work. If the thread is cut and removed, there is only one thread along the seam on the surface of the sewn calender, and the thread at the beginning and end of sewing becomes almost inconspicuous. The effect is obtained that can be produced very good-looking calendar.

[Brief description of the drawings]

FIG. 1 shows one embodiment of a calendar of the present invention, wherein (a) is a schematic plan view, (b) is a schematic side view, and (c).
1A is a schematic perspective view showing a structure of a seam at a portion c in FIG. 1A, and FIG. 1D is a schematic perspective view showing a structure of a seam at a portion d in FIG.

FIGS. 2A and 2B are schematic perspective views showing a structure of a seam;

FIG. 3 is a schematic side view showing a main part of a sewing machine used in an embodiment of the method of the present invention.

4 (a), (b), (c), (d) are schematic side views illustrating a single thread ring sewing operation.

FIG. 5 (a), (b), (c), (d), (e),
(F), (g) and (h) are schematic side views illustrating the operation of one embodiment of the method of the present invention.

FIG. 6 (a), (b), (c), (d), (e),
(F), (g) and (h) are schematic side views illustrating the operation of one embodiment of the method of the present invention.

7 (a), (b), (c), (d), (e),
(F), (g) is a schematic perspective view explaining the formation process of the seam at the start of sewing in one embodiment of the method of the present invention.

8 (a), (b), (c), (d), (e),
(F) is a schematic perspective view illustrating the formation process of the seam at the end of sewing in one embodiment of the method of the present invention.

[Explanation of symbols]

 Reference Signs List 1 calendar 2 calendar sheet 3 sheet bundle 4 cardboard 5 thread 5a thread 5b loop 5c end of thread at the start of sewing 5d thread at the end of sewing 6 thread binding part 8 perforation 11,12 knot 21 needle 22 looper 24 thread fixing device 25 Fixed knife 26 Thread waste suction hose 27 Automatic thread cutter

Claims (5)

[Claims] 1. A calendar in which a bundle of a plurality of calendar sheets is bound with a thread along an upper end edge thereof, wherein a thread binding portion is formed by single thread ring stitching and at least the start of sewing. A calender characterized in that the thread is entangled twice with the needle through the second needle and the last eye to form a knot. 2. The thread binding portion is formed by single thread ring stitching through the needle of a sewing machine from the surface side of the calender, the end of the thread at the start of sewing is cut near the surface of the calender, and the end of the thread at the end of sewing is cut. 2. The calendar according to claim 1, wherein the end is pulled out to the back side of the calendar. 3. A work in which a bundle of paper sheets composed of a plurality of calender paper sheets is set in a state to be bound is passed through a sewing machine for single thread ring stitching, and a thread at the start of sewing is held by a thread fixing device. Start the single thread chain stitch with, tie the thread through the needle twice at least to the second needle to make a knot, and then
A method for producing a calender, comprising performing single-thread chain stitching, twisting the thread again through the needle at least twice at the final end, and applying tension to the thread to form a tightly knotted knot. 4. The thread according to claim 3, wherein after the thread is entangled twice with the needle at the final stitch, the workpiece is moved after cutting the thread to apply tension to the thread and strongly tighten the knot. How to make a calendar. 5. The method for manufacturing a calender according to claim 3, wherein the work is passed through a sewing machine such that the front side of the calender is the needle side to perform single thread chain stitching. Is cut at a position where the sewn portion of the work runs and near the surface of the work with a fixed knife, and at the end of sewing, the thread extending between the work and the needle is While holding with the fixing device, the thread on the work side is cut, and the thread on the back side of the work is sent to the looper while the work is sent, so that the end thread is pulled out to the back side of the work, and then the excess thread is cut and removed. A method for producing a calender, characterized in that: