Fundraising campaign to bring to market the ideal ZARIF 2023 sewing technology that revolution in straight stitch sewing.
In 1994, we revolutionised sewing technology with the creation of the ZARIF double thread chain stitch technology using a rotary looper. This breakthrough was officially recognised in 2000 with US Patent No. 6095069. It has taken us almost 26 years to perfect this innovative technology, making it the world's first ideal solution for sewing straight stitches.
To achieve this, we first developed a prototype ZARIF sewing machine based on our new technology in 1997. We modified an industrial lockstitch sewing machine (Class 1022, Orsha, Belarus) to carry out our initial trials. Through extensive testing, we identified areas for improvement and gradually improved the machine by applying our expertise. Finally, in 2023, we successfully created the world's first ideal ZARIF technology for straight stitch sewing.
We now need financial support to develop an industrial version of the ZARIF sewing machine based on our prototype and to start production to bring it to market. We have set up a «Fundraising» page on our company website where anyone can make a contribution to help us bring our innovative product to market.
We need your support! You can donate any amount to help us reach our goal. If your donation is $10 or more, you'll automatically receive a pre-order for the industrial version of the ZARIF sewing machine at a 10% discount as soon as it's produced. The number of discounted machines you can purchase depends on your donation. For example, a donation of $50 entitles you to five machines at a discounted price.
Why ZARIF Sewing Machine? The ZARIF sewing machine is the world's first machine with a very simple mechanical design. It can sew a wide range of materials up to 8 mm thick with a short needle bar stroke of 32 mm without any adjustments. It ensures consistent stitch quality without skipped stitches, thread breakage, needle breakage and needle point deformation. What's more, the machine allows you to easily switch between needle sizes from Nm. 130/21 to Nm. 60/8 without any adjustments. You'll also be the first to sew with our new double thread chain stitch (type 401) with loops turned 180 degrees so that the underside of the chainstitch seam looks more like a thick thread along the seam than a chain of threads. You will also be able to join any materials tightly for the first time with a chainstitch seam and tack the end of the chainstitch seam securely with condensed stitches of 0.5 mm stitch length.
Early Access for Supporters. Anyone who donates $10 or more will receive exclusive early access to the industrial version of the ZARIF sewing machine at a reduced price, before it's available to the public. This ensures that our early supporters can benefit from the innovation they have helped bring to life.
Join Us in Advancing Sewing Technology. Your support will help us revolutionise the sewing industry. Together we can bring the ZARIF sewing machine to market, offering an innovative solution that delivers superior stitch quality, versatility and simplicity.
Help us make this technological breakthrough a reality!
About
Welcome to our website, where you will find detailed information about our ideal ZARIF 2023 double thread chain stitch technology with rotary looper, which has revolutionised straight stitch sewing for the first time in human history.
We are a small technology company based in Uzbekistan, founded in 2012 by mechanical engineer and inventor Zarif Sharifovich Tadjibaev.
We are the first and only company in the world to revolutionise straight stitch sewing with our ideal ZARIF double thread chain stitch technology with rotary looper. Our founder developed this advanced technology in 2023 by perfecting his original ZARIF double thread chain stitch technology with rotary looper, which he invented in 1994 and patented in the USA in 2000 (Patent No. 6095069).
Our founder, Zarif Tadjibaev, is an expert in sewing technology and patenting. He graduated with honours from the Tashkent Institute of Textile and Light Industry with a degree in Mechanical Engineering for Machinery and Equipment of Light Industry. He also worked for over 20 years at the Tashkent Institute of Textile and Light Industry, where he taught undergraduate courses in «Machine Parts» and «Sewing Production Equipment's» and a master's course in «Patent Law». From 2002 to 2004 he was head of the Sewing Technology Department.
In 2001, he defended his PhD dissertation thesis entitled «Development and justification of parameters for working units of a double thread chain stitch sewing machine» in the field of «Machinery and Equipment of Light Industry».
At the end of 2011, he left the Tashkent Institute of Textile and Light Industry, and in 2012, he established his own company, ZARIF SEWING MACHINE CO., LTD. to devote himself fully to further perfecting the ZARIF double thread chain stitch technology he invented in 1994, with the aim of making it the world's first ideal technology for straight stitch sewing. And he achieved his goal in 2023.
Our ideal ZARIF 2023 double thread chain stitch technology has revolutionised sewing machine design and straight stitch sewing.
1. For the first time, a rotary looper is used to form a double thread chain stitch, resulting in the world's first new double thread chain stitch type 401, where the top and bottom thread loops are rotated 180 degrees.
2. For the first time, an ordinary needle with a single long groove is used to form a double thread chain stitch, as the needle does not participate in the pre-tightens of the top thread loop placed in the previous stitch.
3. For the first time, materials up to 8 mm thick can be sewn with a needle bar stroke of 32 mm.
4. For the first time it is possible to sew materials of different thickness, density, stiffness and elasticity without any adjustments by setting the normal tension for all threads.
5. For the first time it is possible to sew without skipped stitches, thread breakage, needle breakage and needle point deformation, provided the thread is free of knots and the needle size matches the material being sewn.
6. For the first time, using our know-how, it is possible to tightly pull the top thread loop in a stitch to achieve a dense material join, or to loosely pull the top thread loop in a stitch to get smooth seams on light materials and elastic seams in stretchable materials without adjusting normal thread tension.
7. For the first time, the maximum allowable gap between the needle and the tip of the looper has been increased to 0.5 mm, allowing an easy transition from a Nm. 130/21 needle to a Nm. 60/8 needle without adjusting the looper relative to the needle.
8. For the first time, high stitch formation reliability has been achieved without the use of needle guards.
9. For the first time, the length of the double thread chain stitch can be reduced to 0.5 mm, allowing the end of the chainstitch seam to be more securely tucked against unraveling by condensing the stitches with a stitch length of 0.5 mm.
10. For the first time, it is possible to develop different types of sewing machines, with different types of platforms and different types of material feed, with a very simple mechanical design that operates with high reliability and long service life.
The «eternal» disadvantages of the existing technologies, lockstitch type 301 and double thread chain stitch type 401, which do not exist in our ideal ZARIF 2023 sewing technology.
It is well known that the lockstitch type 301 and the double thread chain stitch type 401 are currently used for straight stitch sewing and that the technologies for forming these stitches were invented in the 19th century.
These existing technologies for sewing straight stitches have many disadvantages, which can be called «eternal» disadvantages, because they are inherent in the technology of forming these stitches.
«Eternal» disadvantages of existing lockstitch technologies (type 301), which are not present in our ideal ZARIF 2023 double thread chain stitch technology.
The «eternal» disadvantages of the existing lockstitch technologies are due to the use of a hook that houses a bobbin with the bottom thread.
1. Frequent changer of the bottom thread wound on the bobbin of hook (shuttle), due to the small size of the bobbin.
2. A very large number of types of hooks (shuttles), differing in mechanical design, size, movement and direction of the axis of oscillation or rotation.
3. All types of hooks (shuttles) have a very complex mechanical design and require high precision manufacturing and assembly.
4. Deflection of the needle when the needle moves down while sewing through thick seams may cause the needle to collide with the needle plate and hook (shuttle), resulting in breakage of the needle or deformation of the needle point.
5. To obtain a high-quality seam with a lockstitch of type 301, the threads must be intertwined in the middle of the stitched materials, the threads must tightly join the materials, it is necessary to obtain a smooth seam on light materials and an elastic seam on elastic materials, which requires adjusting the tension of the threads when changing the thickness, stiffness and elasticity of the materials being stitched, while it is impossible to obtain a highly elastic seam.
6. With a small stroke length of the needle bar equal to 32 mm, it is impossible to sew materials up to 8 mm thick.
7. The maximum allowable gap between the hook point and the needle is 0.1 mm, which requires adjusting the hook relative to the needle when switching from needle Nm. 130/21 to needle Nm. 60/8.
8. All existing technologies of forming a lockstitch type 301 cannot guarantee sewing without skipping a stitch and without breaking threads.
9. During sewing, the top thread loses its mechanical strength with increasing sewing speed, due to the large number of repeated movements of the top thread through the eye of the needle, the stitched material and thread guides, since even a standard hook consumes a sufficiently large length of the top thread to form a stitch.
10. All types of thread take-ups unevenly shorten and tighten the loop of the top thread and it is impossible to evenly shorten and tighten the loop of the top thread.
11. All types of hooks (shuttles) require lubrication, and non-lubricated hooks limit the sewing speed.
12. All types of hooks (shuttles) must be cleaned of dirt, and getting thread segments into the hook slip zone can lead to jamming of the hook and sudden braking of the sewing machine.
«Eternal» disadvantages of existing double thread chain stitch technologies (type 401), which are not present in our ideal ZARIF 2023 double thread chain stitch technology.
The «eternal» disadvantages of the existing double thread chain stitch technologies are due to the use of a looper carrying the bottom thread.
1. All existing technologies for the formation of a double thread chain stitch type 401, where the looper carries the bottom thread, are not able to tightly join materials, as well as qualitatively sew combinations of various materials, such as textile-leather, textile-plastic, knitwear-leather and knitwear-plastic.
2. For high-quality sewing of various materials, it is necessary to adjust the tension of the threads, i.e. it is impossible to sew various materials qualitatively under normal tension of threads.
3. To form a double thread chain stitch, it is necessary to use a special needle with two long grooves, which is less durable for longitudinal bending than a conventional needle with one long groove.
4. To increase the reliability of stitch formation, it is necessary to use movable and fixed needle guards.
5. Deflection of the needle when the needle moves downwards, during sewing through thickened seams, can lead to a collision of the needle with the body of the looper and the needle guards, which can lead to needle breakage or deformation of the needle point.
6. With a small stroke length of the needle bar equal to 32 mm, it is impossible to sew materials up to 8 mm thick.
7. The maximum allowable gap between the looper point and the needle is 0.1 mm, which requires adjusting the looper relative to the needle when switching from needle Nm. 130/21 to needle Nm. 60/8.
8. All existing technologies for the formation of a double thread chain stitch type 401 cannot guarantee sewing without skipping a stitch and without breaking threads.
9. Loopers have rather complex mechanisms.
10. All existing technologies for forming a double thread chain stitch of type 401 do not allow reducing the stitch length to 0.5 mm in order to securely tack the end of the chain seam.
Fundraising campaign to bring to market the ideal ZARIF 2023 sewing technology that revolution in straight stitch sewing.
In the section «Disadvantages of existing sewing technologies» on our website and in our video film «1_ZARIF 2023_Revolution in sewing_Eternal disadvantages of existing sewing technologies 301_401» (https://youtu.be/Js3Ds1_iVLU) the «eternal» disadvantages of existing lockstitch and double thread chain stitch technologies are described in detail.
These existing sewing technologies will never become the ideal technology for straight stitch sewing, no matter how they evolve in the future, due to their «eternal» disadvantages.
The development of an ideal technology for straight stitch sewing, free from the «eternal» disadvantages of the existing sewing technologies, can only be achieved by inventing a new technology for forming the double thread chain stitch type 401, as it is technically impossible to invent a new technology for forming the lockstitch type 301 without using a hook.
However, the task of inventing a new double thread chain stitch technology and making it the ideal solution for straight stitch sewing is a very challenging one.
All previous attempts to invent a new double thread chain stitch technology and make it the ideal solution for straight stitch sewing were unsuccessful. For example, the new double thread chain stitch technology using a special hook (see US Patent No. 3811392, 1974, https://patents.google.com/patent/US3811392A/) was never commercialized. We believe that any new double thread chain stitch technology using a special hook cannot become an ideal solution for sewing due to the complexity of the special hook design and the need for lubrication.
We were the first in the world to invent the new ZARIF double thread chain stitch technology with rotary looper in 1994.
It has taken us almost 26 years to perfect this innovative ZARIF sewing technology, making it the world's first ideal solution for sewing straight stitches.
To achieve this, we first developed a prototype ZARIF sewing machine based on our new technology in 1997. We modified an industrial lockstitch sewing machine (Class 1022, Orsha, Belarus) to carry out our initial trials. Through extensive testing, we identified areas for improvement and gradually improved the machine by applying our expertise.
Finally, in 2023, we successfully created the world's first ideal ZARIF technology for straight stitch sewing.
We now need financial support to develop an industrial version of the ZARIF sewing machine based on our prototype and to start production to bring it to market. We have set up a «Fundraising» page on our company website where anyone can make a contribution to help us bring our innovative product to market.
We need your support! You can donate any amount to help us reach our goal. If your donation is $10 or more, you'll automatically receive a pre-order for the industrial version of the ZARIF sewing machine at a 10% discount as soon as it's produced. The number of discounted machines you can purchase depends on your donation. For example, a donation of $50 entitles you to five machines at a discounted price.
Why ZARIF Sewing Machine? The ZARIF sewing machine is the world's first machine with a very simple mechanical design. It can sew a wide range of materials up to 8 mm thick with a short needle bar stroke of 32 mm without any adjustments. It ensures consistent stitch quality without skipped stitches, thread breakage, needle breakage and needle point deformation. What's more, the machine allows you to easily switch between needle sizes from Nm. 130/21 to Nm. 60/8 without any adjustments. You'll also be the first to sew with our new double thread chain stitch (type 401) with loops turned 180 degrees so that the underside of the chainstitch seam looks more like a thick thread along the seam than a chain of threads. You will also be able to join any materials tightly for the first time with a chainstitch seam and tack the end of the chainstitch seam securely with 0.5 mm condensed stitches.
Early Access for Supporters. Anyone who donates $10 or more will receive exclusive early access to the industrial version of the ZARIF sewing machine at a reduced price, before it's available to the public. This ensures that our early supporters can benefit from the innovation they have helped bring to life.
Join Us in Advancing Sewing Technology. Your support will help us revolutionise the sewing industry. Together we can bring the ZARIF sewing machine to market, offering an innovative solution that delivers superior stitch quality, versatility and simplicity.
Help us make this technological breakthrough a reality!
Our global mission in straight stitch sewing with our ideal ZARIF double thread chain stitch technology with rotary looper.
1. To simplify the mechanical design of a sewing machine for straight thread seams.
2. To sew a straight thread seams without skipping stitches, thread breakage, needle breakage and needle tip deformation.
3. To ensure high quality sewing with straight thread seams on different materials and combinations of materials up to 8 mm thick with a short needle bar stroke of 32 mm without adjusting the normal tension of the threads.
4. To ensure tight joining of all types of materials without adjusting the normal tension of the threads with our new double thread chain stitch type 401, where the loops of the top and bottom threads are rotated 180 degrees.
5. To ensure a smooth thread seam when sewing lightweight fabrics and an elastic thread seam when sewing elastic fabrics without adjusting the normal tension of the threads.
6. To ensure that the end of the chain seam is reliably tack against unravelling by reducing the stitch length to 0.5 mm using condensation stitching at the end of the chain seam.
7. To provide an easy transition to other needle numbers when sewing different materials without adjusting the looper relative to the needle, in the range from needle number Nm.130/21 to needle number Nm.60/8, by increasing the maximum allowable gap between the point of the looper and the needle to 0.5 mm.
8. To ensure the further development of the automation of the sewing process in sewing with straight thread seams.
9. To ensure high reliability and high service life of sewing machines and automatic sewing systems in sewing with straight thread seams.
10. To provide large-scale replacement of the lockstitch type 301 with our new double thread chain stitch type 401, thus eliminating the need to frequently refill the bottom thread during the sewing process.
Customers will enjoy the following benefits when using the ZARIF double thread chain stitch sewing machine, thanks to our revolutionary ideal ZARIF sewing technology of 2023 using a rotary looper.
1. For the first time, the sewing process is carried out with the new double thread chain stitch type 401, which, thanks to the 180° turned loops of the top and bottom threads, made possible by the use of a rotary looper, as a result, the underside of the chain stitch is very similar to the lockstitch type 301, which uses a thick bottom thread.
2. For the first time, with one model of sewing machine with a small needle bar stroke of 32 mm, various materials up to 8 mm thick can be sewn with quality, without any adjustments, it will be sufficient to set the normal tension for the threads.
3. For the first time, the sewing process is performed without skipping stitches, threads breakage, needle breakage and needle tip deformation.
4. For the first time, a needle with one long groove was used for sewing with a double thread chain stitch, which will not come into contact with the body of the looper when moving down.
5. For the first time, the use of the double thread chain stitch makes it is possible to obtain a tight joint of the materials and to reduce the thickness of the bottom side of the chain seam, this is thanks to the strong pulling force of the loop on the top thread in the stitches, obtained through the use of know-how.
6. For the first time, it is now possible to slightly tighten the loop of the top thread in the stitches using know-how, which increases the smoothness of the seam in light materials and the elasticity of the seam in elastic materials.
7. For the first time it is possible to reduce the length of a double thread chain stitch to 0.5 mm, which makes it possible to reliably tack the end of a chain seam against unravelling by condensation stitching with a stitch length of 0.5 mm, it is also possible to obtain a high-strength and hard-to-unravel chain seam, by reducing the stitch length to 0.5 mm after each stitch.
8. For the first time, it is easy to change to other needle sizes without adjusting the looper relative to the needle, in the range from Nm. 130/21 to Nm. 60/8, as the maximum permissible gap between the tip of the looper and the needle has been increased to 0.5 mm.