P.227. What does machine diameter mean in knitting machine?
C.227. It is a measure that determines the width of the tissue to be produced in circular knitting machines. The use of the product, that is, the working speed. It is the speed of the lock system in flat knitting machines and the needle bed in circular knitting machines in m/s. This speed is determined by the knitting principle of the machine (RL, RR, LL), the patterning condition, the machine width or diameter, the structure of the knitting and the yarn properties used. Machines of different diameters are selected according to the Inch (") is used as the unit
p.228. What does system mean in knitting machine, please explain?
C.228.A needle group in weft knitting machinesa unit consisting of a cam mechanism and a yarn guide, forming a knitting row.system is called. As the number of systems in knitting machines increases, the number of rows produced in one revolution will also increase.
However, the maximum number of systems that can be used in flat knitting machines is limited to 6. Today, machines with 3-4 systems are generally produced.
S.229. What is the result of the increase in the number of systems in knitting machines?
C.229. As the number of systems increases in knitting machines, the number of rows produced in one revolution increases.
S.230. Circular knitting machines What does system density mean?
C.230. For circular knitting machinesThe defined system density is the ratio of the number of systems to the machine diameter.
S.231. Knitting process on circular knitting machines Why is it higher than flat knitting machines?
C.231. Knitting process on circular knitting machinesThere is an uninterrupted operation as it is provided with the movement of the needle bed always in the same direction. The production of these machines is very high, as many systems can be placed around the needle bed and continuous operation can be achieved.
Q.232. What does may and row mean in knitted fabrics?
C.232. Loop bars along the width of the fabric in knitted fabrics.“may” is the rows of loops along the length of the fabric."desk"is called.
S.233. How many types of circular knitting machines according to the needle bed and what are they?
C.233. Circular knitting machines are of two types: single plate (single needle bed) or double plate (double needle bed).
S.234. What is the maximum number of systems that can be used in flat knitting machines, why are machines with less systems (3-4) produced and what are the reasons for this?
C.234. The maximum number of systems that can be used on flat knitting machines is limited to 6. Today, machines with 3-4 systems are generally produced;
There are two reasons for this:
1- Since the knitting process is provided by the reciprocating movements of the systems, there is a discontinuous work. Since the head, which consists of many systems, will also be heavy, it will require a lot of energy to increase the speed of the head from zero each time.
2- At the end of each row, the systems have to go out of the knitting zone. As the number of systems increases, so will the width of the head, it will be necessary to leave extra room on the sides of the needle bed.
S.235. What does the number of systems in a circular knitting machine depend on?
C.235. Number of systems in a circular knitting machine; It depends on the machine diameter, the working principle of the machine (plain, rib, harosha), patterning capacity and machine fineness. The number of systems is usually an even number and in jacquard machines, it is desired to be exactly divisible by two and three in order to knit 2, 3, 4 colored patterns besides the basic structures.
Q.236. What are the factors that give the number of loops and how to find them?
C.236. The product of may and row numbers per unit length gives the theoretical loop density (number) per unit area.
S.237. Rib needle in double plate knitting machinesscheme and interlock needle”how to do the layout.
C.237. In double-plate knitting machines, the needles in one needle bed can be placed between the needles in the other needle bed. This needle layout“rib needle”called layout. The needle arrangement in which the needles are placed opposite each other is the "interlock needle".called layout.
S.238. What are the features of single jersey fabrics?
C.238.It is the simplest and most commonly used type of knitting produced only on a bed of needles. All needles on the needle bed participate in the knitting process.
• The appearance of the front and back sides of the fabric is different.
• The fabric structure is uneven, so curling is seen at the edges.
• Loop runaway runs up and down through the fabric structure.
• It is possible to remove the fabric from the starting and ending points.
• The transverse flexibility of the fabric is approximately twice the longitudinal flexibility.
S.239. What are the features of rib fabrics?
C.239. They are double plate knits produced by using both needle beds. All needles in both needle beds are used to create this structure.
• Front and back surface appearance is the same.
• Balanced fabrics, no curling on the edges.
• Loop runaway formed in the fabric moves down along the same may.
• The transverse elasticity of the fabric is approximately twice that of the single jersey knit. Its longitudinal flexibility is almost the same as that of single jersey.
• The thickness of the fabric is approximately twice that of the single jersey.
S.240.What are the features of interlock fabrics?
C.240. They are double plate knits produced by using two needle beds as in rib knit structure. The needles in both needle beds are arranged in such a way that they face each other.
• Front and back surface appearance is the same.
• Balanced fabrics, no curling on the edges.
• Loop runaway formed in the fabric moves down along the same may.
• The transverse flexibility of the fabric is less than that of rib.
Q.241. How is the patterning possibility of single jersey fabric knitting compared to other weaves?
C.241. Single jersey knitted fabric knitting has less patterning opportunity compared to other knits.
P.242. According to which technique is the single jersey knitted fabric produced?
C.242. Single jersey fabric is produced with RL flat knitting technique.
S.243. How do the loops look on the front and back of fabrics produced with RL plain weave?
C.243. Fabrics produced with RL plain weave have straight (R) loops on one side and reverse (L) loops on the other side.
S.244. Different images are obtained by working with which elements in the patterning of RL weaves.
C.244. In patterning RL weaves auxiliary knitting elements such as hangers, jumpersBy working with it, different images are obtained.
P.245. Explain the properties of single jersey fabrics?
C.245. Single jersey fabric is produced with RL flat knitting technique. Fabrics produced with RL plain weave have straight (R) loops on one side and reverse (L) loops on the other side. In patterning RL weaves auxiliary knitting elements such as hangers, jumpers By working with it, different images are obtained. Colorful patterns can be obtained with the jacquard technique. Patterns such as lines in the transverse direction can be applied with colored threads. In addition, it is possible to obtain different patterns by arranging the needle and steel sequences. These fabrics are; Their front and back faces look different from each other. They are fabrics that are produced in the form of a tube, but can also be used in the form of open width by cutting.. Wider widths can be obtained in single jersey fabrics compared to rib and interlock fabrics. They stretch at about the same rate both transversely and longitudinally. If they are stretched too much, they may distort their shape. When they are used as clothing, they do not wrap around the body compared to other weft-directional knitted fabrics, due to their low elasticity. Single jersey knitted fabric knitting has less patterning opportunity compared to other knits. Since the knitting pattern is formed on a single needle on a single plate, it is the knitting type with the least amount of yarn consumed per unit area. When they are cut, curls occur from the sides towards the back of the fabric, and from the top and bottom to the front of the fabric. They are less prone to wrinkling. Single jersey knitted fabrics are used especially in summer outerwear, sportswear, medical clothing.
Q.246. Give examples of single jersey fabric types?
C.246. 30/1 Open-End Single Jersey-30/1 Ring Single Jersey-30/1 Combed Single Jersey-20/1 Open-End Single Jersey-20/1 Ring Single Jersey-20/1 Combed Single Jersey-30/1 Open-End 5% Lycra Single Jersey-30/1 Ring 5% Lycra Single Jersey,-30/1 Combed Cotton 5% Lycra Single Jersey-30/1 Ring FullLycra Single Jersey-30/1 Combed Full Lycra Single Jersey
Q.247. Tell us about Lacoste ( lacost ) Knitted Fabrics?
C.247. It is obtained in two ways as single and double collected lacoste:
Single-collection lacoste from four systems Double-collection lacoste consists of six systems. These fabrics are created using two types of needles and two types of steel. They are fabrics with high stability. The fabric has a single ply structure. RL is knit construction. There is an R loop in the front and an L loop in the middle. However, these L loops are not as distinct as in single jersey fabric. This is due to the knit structure of the fabric.Lacoste fabrics are produced in hanger-loop combination.A row of loop hanger-loop-hangeras you go, other row; hanger-loop-hanger-loopgoes in the form.
Double-collection lacoste is formed by repeating the sequences described above twice. To create this fabric, two needle channels and two types of needles, long-short-footed, are needed.
P.248. In how many ways are Lacoste Knitted Fabrics obtained and how many systems are they?
C.248. It is obtained in two ways as single and double collected lacoste. Single-collection lacoste from four systems Double collection lacoste consists of six systems.
S.249. Explain the features and usage areas of double-gathered lacoste knitting?
C.249. There are R loops on the front of the double-gathered lacoste knit, while the hanger form is clearly noticeable on the middle surface. The longitudinal flexibility of the fabric is less, the transverse flexibility is better than single jersey fabrics. He has a full attitude. The classic lacoste T-shirt has a wide range of uses in sports top and bottom clothing. It is also used in bedding.
S.250. What does vanize knitting mean?
C.250. RL Knitted fabric with two different colors of yarn or yarn with different properties (brightness, twist, thickness, raw material, etc.) in single plate ( single jersey ) circular knitting machines is used for knitting that has different color or appearance characteristics on the front and back of the fabric and the reverse.vase braidsIt called.
What are impacted teeth?
When one or more teeth fails to grow in the correct position and is therefore held below the normal gum line, it is called an impaction. This can be complete, such as completely unerrupted (buried) third molars (wisdom teeth) or partial when just part of the tooth is visible in the mouth.
Why are impactions important?
For best function and appearance the teeth should grow in a healthy alignment. When one or more teeth is impacted, this can affect the function of that tooth but also the function and appearance of other teeth.
Whether all impactions should be treated is still controversial and your dentist and oral and maxillofacial team can explain the advantages and disadvantages or treatment for you, which is usually surgical.
Q.251. In which knitting machines are vanize knitted fabrics produced and what are their properties?
C.251. RL They are produced on single plate (over jersey) circular knitting machines. The basis of this knitting is that two yarns make loops at the same time, in the same system and on the same needle. The appearance of the threads on the front and back is achieved by feeding the threads from the thread lugs (shuttles) to the needle from different points. The texture formation does not differ from the single jersey knit system. The only difference here is that the yarn feed is made with double yarn. They are obtained by feeding two threads from the same point. The fed yarn raw material may consist of the same or different material. In single and double plate circular knitting machines, vanize fabric is obtained by running two yarns with different properties so that one can be seen on the front side and the other on the back side of the knitting. In this type of knitting, which is called vanized single jersey in the knitting industry, the method is the same as in single jersey knitting. The difference is that the shuttle works according to the double eye and jacquard system. In this knitting, which looks like a double-layered fabric, the yarns can be made of different materials according to the request and purpose. For example, in sweatpants, floss can be used on the front and cotton yarn on the back.
Q.252. Describe Two-Thread Knitted Fabrics?
C.252. This weave is created in four systems using two different numbers of yarn. First of all, the thread to be seen on the fabric surface is passed over the shuttle, and the thread to be seen on the reverse side is passed through the back hole. The thread to be seen on the reverse is the thread with a thicker number. Two yarn fabrics are produced on single plate sinker equipped circular knitting machines.This fabric is created with the help of special sinkers. It is worked with two threads. Lining yarns take place on the back surface by gaining hanger form. The threads seen on the front face in the first row are knitted with all needles. In the second row, these lining threads took place in the form of lining by skipping three needles with the effect of sinkers. These lining threads are not seen on the front, while there are normal loops, on the back surface completely lining threads are dominant. The transverse-longitudinal stretch of the fabric is quite limited. This feature is due to the strength that the lining yarns bring to the knitting. The fabric has a fuller handle.
S.253. Explain Three Yarn Knitted Fabrics?
C.253. Three yarns are used in making this knitting. Two of the three yarns used are the same numbered yarn and the other is a different numbered yarn. The first of them acts as a filling on the surface of the fabric and the other in between.
The thicker thread is seen on the reverse surface of the fabric. The yarn used, ground yarn and connection yarn Ne 30/1, 10/1 carded yarn is used as lining yarn.
Separately three threads (ground, lining and connecting thread)It is a type of knitting obtained by knitting in a way that creates a reverse surface that will create a stronger structure.
It is heavy and weighty compared to two yarns. The most important feature of these weaves is that the thick yarn is less visible on the surface, and the surface image quality is provided on fabrics with two different colors.
Three yarn knit fabrics are used in single plate circular knitting machines.
The difference of triple yarn machines from single jersey machines is that the structure and arrangement of the shuttle, sinker, needle and locks are special for three yarns.
They are a type of knitting obtained by preparing three-yarn knitted sinkers in different ways and feeding yarn from three separate channels.
One of the two yarns used in knitting with the same number is the ground and the other is the binding yarn.
The third thread is the pile thread, which is thicker than the binding thread and appears on the reverse of the fabric as skipping. The fabric front has regular R looped bars.
On the back, there is a mesh-like structure. This mesh look is due to the skipping of the lining yarn. The transverse stability of this fabric is good. Its elasticity is extremely limited.