Category Archives: Finishing

Slitter Machine || Functions Of Different Parts Of A Slitter Machine

Slitter machine is used for tubular knit fabric to make it in open form. In open form fabric finishing line; slitter machine is used after hydro-extractor, de-watering and drying machine.

Slitting is a process that is applied for cutting the tubular fabric through the intended break Wales line on lengthwise direction prior to stenter processing. During slitting, it is required to be aware about the cutting line otherwise, fabric faults can be occurred there.

Objectives of Slitting: Following objectives are achieved by the slitting machine.

  • To open tube fabric according to specific needle mark.
  • To prepare the fabric for next stentering process.

Slitter Machine parts and their functions: Following are the main machine parts and their functions.

  1. Rotary Blade: Rotary blade is used for cutting the fabric through break Wales line.
  2. Ring: Ring is use to help the cutting process.
  3. Guide Roller: After slitting, plaiting of the fabric is done. Guide roller guides the fabric to plaiting.
  4. Plaiting: Open fabric is make plait by plaiting.
  5. Sensor: Sensor is used for identify the specific Wales line. It makes sense for cutting through break Wales’s line.

Checking Parameters: Following parameters are checked after slitting.

  1. Cutting Line Check: Fabric cutting line is checked by the operator of the slitting machine. Operator checks that the rotary blade cut fabric through break Wales’s line or not.
  2. Bow and Slant check: Bow and slant is checked in the delivery side of the machine by the operator.
  3. Fabric Faults: Various fabric faults also checked in slitting process.

Different branded slitter machine is available in the market. So, choose your required one and perform your slitting operation.

Functions Of Knit Fabric Dryer | Checking Parameters Of Dyed Knit

Dryer is the third steps of finishing process of knit fabric. After passing hydro-extractor and de-watering machine, the knit fabrics enter into the dryer. It is important to know about the efficiency of the dryer and production capacity. I have written about dyed yarn drying process in one of my blog.

Functions of Dryer: Various types of functions are achieved by the dryer. Following functions are most common.

  • To dry the fabric.
  • To control the overfeed system.
  • To control the vibration which increase the G.S.M.
  • To control the shrinkage% of the fabric.
  • To control the GSM of the fabric.
  • To match the shade of the fabric.
  • To adjust the tone of the fabric.

Dryer: Various types of dryer are used for dry the knit fabric. I have present two dryer profiles for getting general idea about the fabric dryer.

Machine name Dryer
Brand Ruckh
Origin Germany
Speed 4-30 m /min
Temperature range 100-180 C
No of chamber 3
No of blower 6
Production capacity applied for Open and tube fabric
No of rotamatic burner 2

Another dryer,

Machine name

Dryer

Brand

Dilmenler
Origin Turkey
Speed range 4-30 m/min
Temperature 110-220 C
Used utilities Electricity, Gas ,Compressed air
No of motor 8
Capacity 8 ton per day
Chamber 3
Applied for Open and tube
No of rotamatic burner 3

Checking Parameters: During drying of the fabric, various types of quality test are carried out to be confirming out the requirements of the delivery products. Dried knit sample is stored for future proof. Following parameters are checked in drying section.

  • Shade Check: After drying of the fabric, dried sample shade is checked with customer approved swatch. If any deviation is found then the operator informs his shift officer, who takes necessary steps to overcome the problem. In dryer, shade of the fabric is adjusted by changing the machine parameter depending on the shade type. Experienced personnel are required for doing this shade checking.
  • Width Check: Width of the fabric adjusts in drying process. Operator measures fabric width by using measuring tape and compare with required width.
  • Weight Check: Weight of the fabric is checked by cutting the fabric by GSM cutter and weighted it by electronic balance. After taking the weight of the fabric, it compare with the standard weight.
  • Fabric Faults: Various types of knitting and dyeing faults are checked after drying.

So, dryer plays an important role in finishing section.

Process Sequence of Finishing Machineries | Finishing Process Of Knit

Finishing machineries are used for applying various types of finishes to the fabric or textile materials. All the finishing sequence is not same. Finishing sequence depends on the material types. Say, dyed yarn finishing process or garments finishing process is not similar as knit fabric finishing process. Although, finishing sequence of open form and tubular fabric form is not similar.

After dyeing, knit fabric is required to finish. During dyeing all knit fabrics are dyed in tubular form. Knit fabrics are finished in open or tubular form according to the buyer’s requirement.

Here, I have given various finishing process line, which is maintained in a dyeing and finishing unit.

Following machineries are used for tubular form fabric finishing:

Hydro-Extractor Machine

De-Watering Machine

Dryer

Tubular Compactor

Following machineries are used for open form fabric finishing:

Hydro-Extractor Machine

De-Watering Machine

Dryer

Slitter Machine

Stenter Machine

Open Compactor

Following machineries are used for collar and cuff finishing:

Hydro-Extractor

Softening Machine

Dryer

So, it is the finishing sequence of knit fabric.