The Dryer Box is a machine, which is used to dry the collar & cuffs. This drying function can be defined as a process in which the collars are equally hung in improvise carrier and let be heated by circulation of air in a Box chamber.
Process Requirements of Dryer Box
Equipment used
Following equipment are used for drying process:
Four trolley (specially design)
One rolling rod to roll the collar & cuffs (after dry)
Following Do’s and Don’ts are to be followed during operation:
Do not wear loose dress that may entangle with the machine parts while running.
Always wear rubber shoes.
Be aware of the first aid treatment procedure.
Don’t touch the electrical wire.
Always wear hand gloves (during operation)
Dryer Box Operation Procedure
Operation Staff
Operation stuffs of Finishing Process includes :
Manager
Textile Technologist / Production Executive
Production Co-ordinator
Operator
Assistant Operator
Dryer Box Installation Process
The Dryer Box Installation Process as follows :
Machine Parameters
Set-up Value
Temperature Setting
(100-120)0C for White Shade
(120-130)0C for Light Shade
(130-140)0C for Dark Shade
(150-170)0C for Curing
Machine Time/Speed
Auto
Exhaust Fan Setting
Auto
Checklist Before Operation
Before drying the Collars and Cuffs in the Dryer Box the Operator must perform the following items:
Heat up the machine before loading collars & cuffs
Check the exhaust & fresh air devices if working properly.
Check the steam valve for open position.
Set the trolleys’ protection screen firmly.
Check the machine doors whether they are properly locked or not.
Check the graphical device if working properly.
Operation Procedure
At first, hang the collars & cuffs by passing in a series of mini-roller arrangement. If all available rollers of trolley are filled up then load the trolley in the machine. Set the temperature by using the temperature regulator noting the required temperature in the program. Switch on the blower for circulation of hot air inside the machine. Hot air will circulate inside the machine and the evaporated water will be taken out by the exhaust opening (ensure that the exhaust ducting are properly opened). After the set running time is elapsed, attend the alarm and carefully open the machine door and check the dryness. The time and temperature setting can be increased if needed. When the loaded collars/cuffs are fully dry, they are unloaded by rolling it in specially designed roller and allow it for cooling, while the next load are being prepared.
Product Quality Check
Randomly check the product quality with the specification to ensure that the machine is not causing any defect.
Q.C. Sample Tests
After drying the collars & cuffs in Dryer Box, give two pieces of collars/cuffs of a batch to QC Lab to check the shade with body fabric.
Response to Equipment Faults
Following are the response to be taken in case of equipment fault of Dryer Box machine:
Machine Faults
Response
Machine not running
Electrical Engineer should be called
Temperature Display problem
Electrical Engineer should be called
Machine Stoppage Alarm Problem
Electrical Engineer should be called
Steam line problem
Mechanical Engineer should be called
Lower Motor problem
Electrical Engineer should be called
Exhaust & Fresh air device problem
Mechanical Engineer should be called
Hanging Trolley Problem
Mechanical Engineer should be called
Machine /Area Cleaning
The daily and weekly cleaning works for Dryer Box Machine are described below:
Clean the inside portion the machine daily
Clean the exhaust & fresh air devices daily
Clean the safety net daily that covers the blower fan (it is placed inside the machine).
Clean outer surface of the machine daily.
The Maintenance Department performs the preventive maintenance task as per the PM schedule. Refer to Maintenance Specification (Document No. 31-101) for details.
Applicable Forms & Documents
Forms & Documents Used
The necessary forms & documents for Dryer Box process are listed below :
Process Batch Card
Machine Downtime Report
Production Register of Dryer Box Machine
Document Flow
The document flow of Finishing Process is as follows :
Operator fills out the Batch Card and the concerned officer put his signature on it upon verification. The Batch Card moves with the fabric for the next step of finishing process (e.g. Tubular Compactor, De-water, Drying or Slitting).
Machine Downtime Report is maintained to keep record of any stoppage in production due to machine break down or any other reason. Operator fills this and the responsible officer sign on it upon verification
Production Register of Dryer Box Machine is used to keep records of date wise production details. Operator fills this out along with his remarks (if any) and this report is recorded for future reference.
Attachments
Examples of all applicable forms and documents are attached for
Know more about The Dryer Box Installation Process
This In House Test Method of sock abrasion tester describes the method of test in order to determine the sock in the stretched form to simulate wear conditions using a linear motion under a standard pressure. The correct number of test specimens are to be prepared and tested as specified within this test method in order to achieve a performance assessment of the product/fabric as described within the scope.
Sock Abrasion Equipment
Sodemat Sock Abrasion Tester.
Leg Formers.
Abrasive paper abradant, AO.P.1000.3M.314.
Foam backing
Elastic bands (1″ elastic strip with velcro ends).
The test specimens are to be conditioned in the standard atmosphere of 65% Relative Humidity (RH) +/- 2% and 20°C +/- 2°C for a minimum of 4 hours. All tests should also be carried out in this atmosphere.
Preparation
One whole sock/test, two socks minimum to be tested. Tests are carried out at four different places on the sock (two on the sole and two on the leg (one either side of the reinforcement area).
Sock Abrasion Tester Procedure
Select the correct leg former as follows: Sock size 6 – 8½ =39, 8 – 9½ =42, One size and 10 – 12 = 44
Pull the abrasion tester onto the former and ease the abrasion tester into position by firmly pulling the sock down until the pick line is in line with the projected heel line of the former. The sock should be central on the former as it would be on a wearer’s foot.
Secure the former on the machine on the leg position (see diagram 1).
Mount the previously prepared foam/abradant pad onto the slipper ensuring no creasing or sharp edges are present.
Position the slipper. by sliding along the bar, at the correct place for testing as required in the report.
Place the elastic holding bands 5cm apart with the slipper in the central area.
Sock Abrasion Test Procedure
Preset the counter to 100 cycles.
Lower the slipper onto the sock and put the protective cover in position (Safety).
Start the machine.
After 100 cycles lift off the protective cover and slipper. Brush off any loose fibre from the
test area and examine for wear (thinning, yarn breakdown, hole) in relation to the specified end-point (see Note 1).
Continue by repeating steps 8 – 10 until 500 cycles.
Replace foam/abradant pad and change every subsequent 500 cycles.
Repeat Steps 5 – 12 for the other leg position.
Repeat Steps 3 – 13 for the wear on the sole areas.
Repeat Steps 2 – 14 for the other sock by abrasion tester
Assessment/Results Of Tested Specimens
Record the number of cycles:
a) when thinning occurs
b) when hole appears.
Reporting Of Results
Report the mean of the two results for each area tested. The end-point is deemed to be when thread break-down creates a hole. Thinning is deemed to be when surface yarns have worn away, leaving the base structure intact. Sock abrasion tester is used in textile industry
The digital pipette controller of Sartorius are the best companion for daily liquid handling in textile laboratories, where the accuracy of the results as well as ergonomics are critical.
Textile Finishing Machine -The loom fabric at the grey stage or after being over dyed in the soaper machine is fed in the finishing range. This is an integrated finishing range assembled by Morrison U.S.A. In denim fabrics there are some very important parameters that are to be see over here such as skewing and shrinkage which can otherwise adversely affect the after wash characteristics of the fabric at the garment stage . The sanforising unit provide the premeditated shrinkage and the fabric set amount after operations are brushing, singing and softening.
This stage is very first stage which the fabric is completely opened up i.e. prepared for the further finishing process with the help of roller and j-scray.
COLD WASH:
Cold bath is used to prewett the fabric properly.
Conclusion
Textile Finishing Machine – Fabric is passed through hot chamber for heat setting. This process is used to avoid shrinkage and elongation problem.
This In House Test Method of fabric coating machine which describes the method in which Auto Testing Services Limited carries out the testing in accordance with the above standards. This operating procedure has been written to complement the above standard and not to replace the standard in part or in full. The correct number of test specimens are to be prepared and tested as specified within this test method in order to achieve a performance assessment of the product/fabric as described within the scope.
Fabric Coating Machine Equipment
Roaches Hot Plate
Teflon Mask (see note 1 for preparation)
Calibrated Thermocouple
Standard Seaming Tape
Calibrated Timer
Calibrated Ruler
CRE Tensile Tester (Constant Rate of Extension)
Set of 4 Neoprene Jaw faces 75 x 25 mm
Conditioning
The test specimens of Fabric Coating Machine are to be conditioned in the standard atmosphere of 65% Relative Humidity (RH) +/- 2% and 20°C +/- 2°C for a minimum of 16 hours. All tests should also be carried out in this atmosphere.
Health & Safety
In all cases technicians must use appropriate safety equipment, goggles, gloves, machine guards. Prior to testing technicians must ensure hands are clean and dry. Unqualified staff must be supervised.
Preparation of Test Specimens/Materials
Check with individual Store Group Procedures for any deviations from this Standard.
Fabric should be in a fully relaxed state before commencing preparation.
At least 150mm away from the selvedge.
Mark out five samples 200 x 75 mm the longest direction parallel to the warp (length) of the fabric. No two samples should contain the same warp and weft threads.
Draw a line in the bottom corner to indicate the length direction.
Cut out the samples.
Cut off 5 samples of standard seaming tape 200mm long.
Switch on the Roaches Hot plate unit. Set the top plate only to heat up to 150°C 2°
When up to temperature check with calibrated thermocouple placing in the centre of the hot plate. If not correct adjust setting and re-check.
Thread tape through slot in Teflon mask.
Place on top of coated side of fabric.
Line up the tape position with the marker slot at the bottom of mask.
Place on a piece of card to ease transportation onto the hot plate.
Lower top plate and start calibrated timer for 30 seconds.
Remove from hot plate and allow to cool for at least 60 seconds.
Gently remove the mask taking care not to disturb the bond of tape to fabric.
Test Procedure ofFabric Coating Machine
If you are using the automatic control machine
Check with fabric coating machine operating instruction for setting up machine.
Select suitable load cell for fabric being tested (100N preferred).
Fit the jaws:-
Front – 75 x 25 mm (Neoprene faced)
Back – 75 x 25 mm (Neoprene faced)
Set safety stops in motion.
Set to S.I. units (Newton)
Adjust gauge length to 75mm, confirm using a calibrated ruler.
If you are using a manual control machine:-
Set fabric coating machine speed to 100 mm/min
Set chart recorder to 1:1 ratio.
Set extension cycling controls:- Minimum 0.0mm and Maximum 200 mm
Load range 100 N (this may need to be adjusted depending on the force required to separate the sample from the seaming tape).
Calibrate the machine without the sample in the jaws to the chart recorder.
If you are using software-controlled machines confirm machine setting are correct according to the above settings.
Log onto the computer or stamp the chart and record all the test and sample details.
Place the first sample in the jaw with the tape in the top jaw and the fabric in the bottom jaw with the fused section central between the top and bottom jaws.
Start the machine and continue until 100mm peel has occurred.
Note any samples where fabric coating breakdown occurs.
Repeat for the remaining 4 samples.
Test Procedure of Fabric Coating Machine
Assessment/Results of Tested Specimens
On completion of all the test samples:-
Computerised machine print of the results.
Manual machine, remove the chart paper and work out the results as follows:-
From each trace calculate the minimum peeling force to the nearest Newton and the median force, when doing this discount the initial peak.
Take the mean average for each set of 5 results.
Assessment Results of Tested Specimens
Reporting Of Results
Convert the final results to N/50mm width using the formula below:-
Force in Newton’s Seaming tape width in mm x 50 =x N/50mm width
Ensure all the results are fully completed on the worksheet including any deviations in the test method.
Fabric Coating Machine for Sale
High-efficiency Intelligent Fabric Coating Machine (service capacity ranging from 40kgs to 130kgs, with two options for process of either organic, aqueous film coating or sugar coating)
PLC control with Touch Screen.
Hot air inlet cabinet.
Air Exhaust cabinet.
Peristaltic pump for film coating.
Spray gun (three pieces).
Mixing drum with Steer.
Strong Electric cabinet.
Electricity: 380V, 50Hz, 3 phases.
Power consumption 40 KW or Steam.
Automatic dumping unit
All contact parts SS 316 L & non contact parts SS 304.
Three stage filter unit.
Air compressor & voltage stabilizer will provided by buyer.
Unit as above (without tax & vat)……………………..
We sale all types of fabric coating machine in Bangladesh.
