ZARIF SEWING MACHINE CO., LTD. - ZARIF sewing technology 2023

IMPROVEMENT OF ZARIF DOUBLE THREAD CHAIN STITCH FORMING TECHNOLOGY FROM 2021

In September 2023, we improved our ZARIF double thread chain stitch technology forming from 2021, and as a result, the quality of the seam when sewing various materials has improved. Revolutionary ZARIF technology of forming a double thread chain stitch from 2023 using a rotary looper provides high-quality sewing of various materials with the help of a new double thread chain stitch type 401 without any adjustments.

FUNDRAISING CAMPAIGN

We have launched a Fundraising Campaign for the mass production of an industrial version of our prototype ZARIF double thread chain stitch sewing machine, which works on the basis of our revolutionary ZARIF double thread chain stitch forming technology from 2023.

All customers interested in buying the world's first most universal industrial version of the ZARIF double thread chain stitch sewing machine can pre-order in the section of our Website «Order ZARIF sewing machine» for just $10 and buy it from us with a 10% discount after the start of its mass production.

ZARIF sewing technology 2023

REVOLUTIONARY BREAKTHROUGH IN SEWING VARIOUS MATERIALS WITH A STRAIGHT THREAD SEAM

We have made a revolutionary breakthrough in sewing various materials with straight thread seam with our revolutionary ZARIF double thread chain stitch technology from 2023 using a rotary looper, which humanity has not been able to do for centuries.

40_Revolutionary ZARIF sewing technology 2021-Sewing of various materials, threads #20 and #40 S/2.

REVOLUTIONARY ZARIF DOUBLE THREAD CHAIN STITCH TECHNOLOGY FROM 2023 USING A ROTARY LOOPER

In 2023, we invented the revolutionary ZARIF double thread chain stitch technology using a rotary looper, which made a revolutionary breakthrough in sewing with a straight thread seam of various materials up to 8 mm thick with a small needle bar stroke of 32 mm.

We invented our revolutionary ZARIF double thread chain stitch technology from 2023 by improving (a lot of know-how) our ZARIF double thread chain stitch technology from 1994, where we used a rotary looper for the first time in the world to form a double thread chain stitch and for which US Patent No. 6095069 was granted in 2000.

Our revolutionary ZARIF double thread chain stitch technology from 2023 has allowed us to make the following revolutionary breakthroughs in the field of sewing with a straight thread seam, which humanity has not been able to do for centuries:

1. For the first time in the world, sewing machines that work on the basis of ZARIF double thread chain stitch forming technology from 2023 have a very simple mechanical design.

2. For the first time in the world, the use of a rotary looper to form a double thread chain stitch.

3. For the first time in the world, thanks to the use of a rotary looper, sewing with a new double thread chain stitch type 401, where the loops of the top and bottom threads are rotated 180 degrees.

4. For the first time in the world, a needle with one long groove is used to form a double thread chain stitch.

5. For the first time in the world, a smooth reduction and tightening of the top and bottom threads is carried out using two rotating two-disc cam thread take-ups.

6. For the first time in the world, sewing materials up to 8 mm thick is carried out using a needle bar with a small stroke of 32 mm.

7. For the first time in the world, high-quality sewing of various materials without any adjustments, when the top and bottom threads have normal tension.

8. For the first time in the world, adjustment of the degree of tightening of the top thread loop in the stitch without changing the normal tension of the top and bottom threads, using know-how.

9. For the first time in the world, a very tight join of any types of materials and their combinations is carried out using a double thread chain stitch.

10. For the first time in the world, sewing without skipping stitch.

11. For the first time in the world, sewing is carried out without breaking threads.

12. For the first time in the world, sewing is carried out without breaking the needle and without deforming the needle tip.

13. For the first time in the world, it is possible to reduce the length of a double thread chain stitch to 0.5 mm.

14. For the first time in the world, a large-scale replacement of the lockstitch type 301 with a new double thread chain stitch type 401.

15. For the first time in the world, the most reliable and durable technology of forming a double thread chain stitch has been used for sewing.

ZARIF TECHNOLOGY DOUBLE THREAD CHAIN STITCH FROM 1994 USING A ROTARY LOOPER (see US Patent No. 6095069)

Where:

1- top thread; 2- needle; 3- material; 4- needle plate; 5- bottom thread; 6- bottom thread guide; 7- rotary looper; 8- pusher of the bottom thread.

Attention: Our revolutionary ZARIF technology double thread chain stitch from 2023 using a rotary looper will be published after the Patent for Inventions is issued for it.

THE HISTORY OF THE REVOLUTIONARY ZARIF DOUBLE THREAD CHAIN STITCH TECHNOLOGY FROM 2023

In 1994, we were the first in the world to invent ZARIF technology for forming a double thread chain stitch type 401 using a rotary looper and for which US Patent No. 6095069 was issued in 2000.

As is known from history, the rotary looper was invented in 1857 by the American inventor James Edward Allen Gibbs, and he used it in the technology of forming a single thread chain stitch type 101 for his single thread chain stitch sewing machine and for which US Patent No. 17427 was issued in 1857.

If, in the technology of single thread chain stitch, the rotary looper makes one revolution in one cycle of needle movement, then in our ZARIF technology double thread chain stitch from 1994, the rotary looper makes two turns in one cycle of needle movement.

The rotary looper consists of one part and is the only working unit in sewing technology that is able to circle the loops of threads around its body, turning them 180 degrees with its tail.

Therefore, the use of a rotary looper in our ZARIF double thread chain stitch technology from 1994 allowed us to be the first in the world to obtain a new double thread chain stitch type 401, where the loops of the top and bottom threads are rotated 180 degrees.

Sewing machine single thread chain stitch Company «SINGER», produced in the 19th century.

In 1994, we were the first in the world to invent ZARIF technology for forming a double thread chain stitch type 401 using a rotary looper and for which US Patent No. 6095069 was issued in 2000.

The rotary looper consists of one part and is the only working unit in sewing technology that is able to circle the loops of threads around its body, turning them 180 degrees with its tail.

In addition, the use of a rotary looper in our ZARIF double thread chain stitch technology from 1994 allowed:

1. For the first time in the world to use a needle with one long groove to form a double thread chain stitch, since the needle does not take part in pre-tightening the loop of the top thread located in the previous stitch.

2. For the first time in the world to use two rotating two-disc cam thread take-ups for feeding and tightening threads, which smoothly shorten and tighten the loops of the top and bottom threads during the formation of the stitch.

3. For the first time in the world to develop a double thread chain stitch sewing machine with a very simple mechanical design.

4. For the first time in the world, completely eliminate the collision of the needle with the body of the looper when the needle moves down.

In 2021, we have improved our ZARIF double thread chain stitch technology from 1994.

In September 2023, we managed to make further improvements to our ZARIF double thread chain stitch technology forming from 2021, as a result of which the quality of the seam improved when stitching various materials.

REVOLUTIONARY ZARIF DOUBLE THREAD CHAIN STITCH TECHNOLOGY FROM 2023 HAS MADE THE FOLLOWING TECHNOLOGICAL REVOLUTIONS IN THE FIELD OF SEWING

For the first time in the world, a rotary looper is used to form a double thread chain stitch.

For the first time in the world, the length of a double thread chain stitch can be reduced to 0.5 mm.

For the first time in the world, thanks to the use of a rotary looper, a new double thread chain stitch type 401 was obtained, where the loops of the top and bottom threads are rotated 180 degrees.

For the first time in the world, a needle with one long groove is used to form a double thread chain stitch.

For the first time in the world, the collision of the needle (1) with the body of the looper (2) is completely excluded when the needle moves down in the formation of a double thread chain stitch.

For the first time in the world, high reliability of stitch formation without the use of left and right needle guards.

For the first time in the world, the simplest needle mechanism (crank pin-crank mechanism) is used to form a double thread chain stitch.

For the first time in the world, the top and bottom threads are smoothly shortened and tightened using two rotating two-disc cam thread take-ups.

For the first time in the world, sewing materials with a thickness of 8 mm with a small needle bar stroke of 32 mm.

For the first time in the world, the maximum allowable gap (a) between the looper point and the needle has been increased to 0.5 mm, and the height (b) of the needle lifting from the lower position is constant for all stitched materials.

PROTOTYPE MOST UNIVERSAL ZARIF DOUBLE THREAD CHAIN STITCH SEWING MACHINE, WORKING ON THE BASIS OF REVOLUTIONARY ZARIF DOUBLE THREAD CHAIN STITCH TECHNOLOGY FROM 2023

REVOLUTIONARY BREAKTHROUGHS IN THE FIELD OF SEWING ENGINEERING

In 1997, we manufactured the world's first prototype ZARIF double thread chain stitch sewing machine, working on the basis of our ZARIF double thread chain stitch technology from 1994 using a rotary looper, by reconstructing the lockstitch sewing machine class 1022 of the Company «Orsha» (Belarus).

Industrial lockstitch sewing machine 1022 class of the Company «Orsha» (Belarus), on the basis of which a prototype of the most universal ZARIF sewing machine double thread chain stitch.

Our experiments carried out on a prototype ZARIF sewing machine allowed us to discover the shortcomings of our ZARIF double thread chain stitch technology from 1994 in sewing various materials.

Then, in 1997, we set a goal, by improving our prototype ZARIF sewing machine, to make it the most universal sewing machine in the world for high-quality sewing of various materials.

Only in 2023, thanks to our continuous research and experimentation for about 26 years, we managed to introduce a lot of know-how into our prototype ZARIF sewing machine and as a result we invented our revolutionary ZARIF double thread chain stitch technology, which allowed us to achieve our goal.

Prototype of an most universal ZARIF double thread chain stitch sewing machine, working on the basis of our revolutionary ZARIF double thread chain stitch technology from 2023.

Our prototype most universal ZARIF double thread chain stitch sewing machine, working on the basis of our revolutionary ZARIF double thread chain stitch technology from 2023, has made the following revolutionary breakthroughs in the field of sewing engineering:

1. The world's first sewing machine with a very simple mechanical design.

2. The world's first sewing machine that sews without skipping a stitch, without breaking threads, without breaking the needle and without deforming the needle tip.

3. The world's first double thread chain stitch sewing machine using a rotary looper, a needle with one long groove and two rotating two-disc cam thread take-ups for feeding and tightening the top and bottom threads.

4. The world's first double thread chain stitch sewing machine, sewing with a new double thread chain stitch type 401, where the loops of the top and bottom threads are rotated 180 degrees.

5. The world's first sewing machine capable of sewing materials up to 8 mm thick with a small needle bar stroke of 32 mm.

6. The world's first sewing machine capable of qualitatively sewing various materials up to 8 mm thick without adjusting the normal tension of the top and bottom threads.

7. The world's first double thread chain stitch sewing machine capable of tightly joining materials using a double thread chain stitch.

8. The world's first double thread chain stitch sewing machine capable of reducing the length of a double thread chain stitch to 0.5 mm to reliably tacking the end of the chain seam from unraveling by condensation stitches with a stitch length of 0.5 mm.

9. The world's first double thread chain stitch sewing machine, capable of using know-how to adjust the degree of tightening of the top thread loop in the stitch without adjusting the normal tension of the top thread.

10. The world's first double thread chain stitch sewing machine, where the maximum allowable gap between the looper point and the needle is increased to 0.5 mm, which makes it easy to switch from needle Nm. 130/21 to needle Nm. 60/8 without adjusting the looper relative to the needle.

PROTOTYPE MOST UNIVERSAL ZARIF DOUBLE THREAD CHAIN STITCH SEWING MACHINE: TYPE STITCH, WORKING UNITS AND TECHNICAL SPECIFICATIONS.

TYPE STITCH: NEW DOUBLE THREAD CHAIN STITCH TYPE 401

In our ZARIF double thread chain stitch technology from 1994, we used a rotary looper for the first time in the world to form a double thread chain stitch, which allowed us to obtain a new double thread chain stitch type 401, in which the loops of the top thread and the bottom thread are rotated 180 degrees.

Normal new double thread chain stitch type 401, used for tight joining of materials.

KNOW-HOW

Elastic new double thread chain stitch type 401, is used to obtain a smooth seam on light materials and an elastic seam on elastic materials.

WORKING UNITS:

Rotary looper.

Needle with one long groove.

Pusher of the bottom thread.

Take-up of the top thread.

Take-up of the bottom thread.

Bottom feed.

TECHNICAL SPECIFICATIONS:

Application: For all materials.

Platform type: Flat.

Length of a stitch: From 5 мм to 0,5 мм.

The maximum speed of sewing: 5000 s.p.m.

Needle bar stroke: 32 mm.

Lift of the presser foot: 9 mm.

Maximum thickness of sewing material: 8 mm.

Type and number of needles: DPx5 or DPx17, from Nm.60/8 to Nm.130/21.

Type feed material: Bottom feed.

THE WORLD'S FIRST MOST UNIVERSAL ZARIF DOUBLE THREAD CHAIN STITCH SEWING MACHINE WITH A VERY SIMPLE MECHANICAL DESIGN

In 2023, based on our revolutionary ZARIF double thread chain stitch technology from 2023, we produced a prototype of the world's first most universal ZARIF double thread chain stitch sewing machine with a very simple mechanical design.

We have manufactured a prototype ZARIF sewing machine double thread chain stitch of an on the constructive basis of an industrial lockstitch sewing machine of the 1022 class of the «Orsha» Company (Belarus), removing from it the mechanisms of the lever thread take-up of the top thread and the hook.

The simplicity of the mechanical design of the ZARIF double thread chain stitch sewing machine positively affects the reliability of its operation and reduces the cost of its manufacture.

KINEMATIC DIAGRAM OF THE PROTOTYPE OF THE MOST UNIVERSAL ZARIF DOUBLE THREAD CHAIN STITCH SEWING MACHINE FROM 2023

LARGE-SCALE REPLACEMENT OF THE LOCKSTITCH TYPE 301 WITH A NEW DOUBLE THREAD CHAIN STITCH TYPE 401

As know, of all types of thread seams, straight thread seams are very widely used in the manufacture of various sewing products, such as clothing, headgear, shoes, bags, backpacks, upholstered furniture, car covers, soft toys, tents, home textiles, etc.

It is also known that thread seams are a universal type of joining materials, since they allow join any types of materials compared to non-thread types of joining materials, such as joining materials using welding and adhesives.

Consequently, at present, the further development of technologies for the formation of thread stitches is an urgent task of our time.

Our revolutionary ZARIF double thread chain stitch technology from 2023 solves this urgent task in sewing straight thread seams.

As know, at present, a lock stitch type 301 and a double thread chain stitch type 401 are mainly used to produce a straight-line thread seam, the formation technologies of which were invented back in the 19th century, which have eternal disadvantages, because of which it is impossible to make an ideal-universal sewing machine based on them.

In our video «39_Revolutionary ZARIF sewing technology 2021-Disadvantages of existing technologies stitch #301_401» (https://youtu.be/FsgVxkKsyz8), we have shown in detail the eternal disadvantages of existing technologies for forming a lockstitch type 301 and a double thread chain stitch type 401, involving various types of hooks (shuttles) and loopers, where the looper carries the bottom thread.

As it is known, at present, a lockstitch type 301 is mainly used as a straight thread seam, and the proportion of the use of a double thread chain stitch type 401 is relatively small, due to the eternal disadvantages of existing technologies for the formation of a double thread chain stitch.

The commercialization of our revolutionary ZARIF double thread chain stitch technology from 2023 in various types of sewing machines and automated sewing systems, allows to increase the share of the use of the double thread chain stitch type 401 in a straight thread seam due to the wide replacement of the lockstitch type 301.

Where:

1- main shaft; 2- needle; 3- rotary looper; 4- thread guide of the bottom thread; 5- pusher of the bottom thread; 6- feed dog; 7- presser foot; 8- nut for regulation of pressure of a press foot on a material; 9- two dick-shaped cam thread take-up of the top thread; 10- tension device of the top thread; 11- two dick-shaped cam thread take-up of the bottom thread; 12- tension device of the bottom thread; 13- lever for regulation of length of a stitch and reverse feed.

Lockstitch type 301.

Double thread chain stitch type 401.

Large-scale replacement of the lockstitch type 301 with a new double thread chain stitch type 401.

OUR AUTOMATIC THREADS TRIMMING TECHNOLOGY

In 2023, we also invented our very simple automatic threads trimming technology for our revolutionary ZARIF double thread chain stitch technology from 2023.

NEW ERA FOR FURTHER DEVELOPMENT OF SEWING AUTOMATION

Our revolutionary ZARIF double thread chain stitch technology from 2023 opens a new era for further development of sewing automation, since it is the only sewing technology in the world that guarantees sewing without skipping a stitch, without breaking threads, without breaking the needle and without deforming the needle tip.

PATENT PROTECTION OF OUR NEW INVENTIONS

We plan to patent our revolutionary ZARIF double thread chain stitch technology from 2023 and automatic thread trimming technology in many countries around the world.

COMMERCIALIZATION OF THE REVOLUTIONARY ZARIF DOUBLE THREAD CHAIN STITCH TECHNOLOGY FROM 2023, WITH STITCH FORMATION IN ONE DIRECTION.

Now we can start commercializing our revolutionary ZARIF double thread chain stitch technology from 2023 into various industrial sewing machines such as:

1. Industrial sewing machines with flat-bed, cylinder-bed and post-bed.

2. Industrial sewing machines with any existing type of material feed, including needle feed of material, since, in ZARIF double thread chain stitch technology, the needle can move freely along the groove of the needle plate.

We can also start commercializing our revolutionary ZARIF double thread chain stitch technology from 2023 in various automated sewing systems, such as:

1. Automated sewing systems with automatic feed of material in one direction along the groove of the needle plate made for the needle and stitch formation.

2. Automated pattern sewing machines with a 360-degree rotating head with material feed in any direction according to the program, where the head and the lower part with the needle plate together according to the program synchronously rotate in the direction of material feed.

We have a technical solution to increase the stitch length to 10 mm.

COMMERCIALIZATION OF THE REVOLUTIONARY ZARIF DOUBLE THREAD CHAIN STITCH TECHNOLOGY FROM 2023, WITH STITCH FORMATION IN ANY DIRECTION.

We also have a technical solution that allows our revolutionary ZARIF double thread chain stitch technology from 2023 to get a stitch when feed the material in any direction, i.e. when feed the material in the range of 360 degrees.

Based on this technical solution of ours, it is possible to develop various automated sewing machines with stitch formation in any direction, such as various automated pattern sewing machines, various automated sewing systems, quilting machines with one and two heads.

PLATFORM TYPES OF INDUSTRIAL SEWING MACHINES