Determination of calcium carbonate dispersing power (threshold effect)
Principle
The products to be tested are titrated with a calcium acetate solution in the presence of carbonate ions.
The amount of calcium carbonate inhibited per gram of test product is calculated.
The test provides an indication of the strength of the threshold effect (CaCO3 dispersing power) of chemicals based on polyacrylic acids.
Chemicals and apparatus
Glassware: 250-ml beakers (not less than 3 per test substance),
several pipettes, measuring cylinders, etc.
2 g test substance is weighed into a 250-ml beaker, dissolved in
50 ml de-ionized or distilled water and the solution is
adjusted to pH 8 with caustic soda 3 % while being stirred.
10 ml soda solution 2% is stirred in, the mixture is made up to 150 ml
and adjusted to pH 11 with caustic soda 3%.
Phase 1: Preliminary titration
The amount (ml) of calcium acetate solution which causes permanent turbidity of the test solution is first determined for each product.
Phase 2: Main titration
To confirm the preliminary titration results, further tests are carried out with a series of linearly graduated amounts (ml) of calcium acetate solution, the mid-point of the series being the amount (ml) found from the preliminary titration. –> see example
Increments of 4 ml are suggested.
Important: The weighed amount used for this titration should be enough to consume 20 – 30 ml calcium acetate solution.
Example Prelim. titration: weighed amt. = 2.0 g actual consumption = 60 ml Main titration: weighed amt. = 0.8 g calc. consumption = 24 ml The main titration is hence performed with :20 ml, 24 ml and 28 ml.
Important: As the reaction is time-dependent, the time varying with the product, wait one hour before definitive assessment !
In this case the end-point of the
titration is at 24 ml calcium
acetate solution
Calculation
The amount of calcium that can be
inactivated per gram of product and/or the maximum water hardness for which 1 g/l is enough is calculated.
Important
: 1ml of the 2 % calcium acetate solution contains 5.067 mg Ca
Maximum amount of Ca that can be
inactivated per gram of product:
mg Ca / g = 5.067 x cons. Ca acetate
in ml
weighed
amount
Maximum water hardness for 1 g product:
°dH* / g = 0.7 x cons. Ca acetate in
ml
weighed
amount
100% COTTON
FUSED EC 2325
M COLLAR, BAND
& CUFF. T/C
NON – FUSED T 6112 M F/PLKT.
BUTTER FLY
N/A.
MAIN LABEL
“WEATHER PROOF” ATT.AT
¾ ² BELOW FROM NECK SEAM 4
SIDE STITCH
PIN
N/A.
SIZE LABEL
WOVEN SIZE LBL ATT. UNDER THE MAIN LBL.
POLY
USE.
CARE LABEL
IN SIDE SEAM AT WEARERS LEFT SIDE 4″ UP FM BTM
BACK BOARD SIZE
N/A.
BUTTON (HORN)
18/L NECK = 1 PCS, FRONT= 6
PCS, 2 PCS EACH CUFF. 14/L EACH
COLLAR & SLV PLKT 1 PCE.
FOLDING SIZE
½ FOLD
SPARE BTTN.
ATT.
AT LOWER INSIDE 14/L 1 PCE 2 ” & 18/L 1 PCE 3 ” FM BTM HEM.
CLIP
PLASTIC CLIP WITH ELASTIC 1
PAIR.
THREAD
MATCING.
TISSUE
N/A.
COLLAR STAY
N/A.
CUFF PRESENTATION
N/A.
COLLAR
B/D COLLAR (SINGLE LAYER).
HANG TAG “WETHERPROOF INTAGRATED” ATT. AT 3RD BTN HOLE WITH BLACK D/LOOP.
* PRICE TICKET ATTACHED
UNDER SLV SEAM THROUGH TOP OF WEARER’S LEFT CUFF SEAM COLOUR & SIZE WISE
WITH WHITE TAG PIN 3″.
CUFF
2 ¼ ” ROUND CUFF , 1 HOLE 2 BTN,
2 PLT AT CUFF JOINT. PLKT EDGE TO 1ST PLT 1 ¾ “, PLT TO PLT GAP ½ ”
FRONT
1 ½ ² WIDTH
WELTED KANSAI (4 NIDDLE D/ST.).
BACK
1 ½ ” BOX AT BACK.
* COLLAR POINT –
3″
*
COLLAR HEIGHT – 1⅞”
*
BAND HEIGHT – 1⅛”
*
COLLAR SPREAD – 3″
*
TIE GAP – ¼ ”
YOKE
DDOUBLE.
POCKET
1 CHEST ROUND PKT WITH “V”
SHAPE. HEM (1″
× 1 ¾ “), CORNER BOX ST. PKT 1L × W = (5 ¾ ” × 5 ½ “)
NOTE
COLLAR BTN DOWN ½ ” SELF FAB. INSIDE GRMNT MUST BE FUSED INT.
FLAG LBL ATT. AT PKT SEAM. (DO NOT STITCH LBL DOWN) FOLLOW THE SAMPLE.
* ONE BODY ONE WAY CUT & MAKE.
INTER LINING
COLLAR, BAND & CUFF BIAS CUT, ONLY F/ PLKT STRAIGHT CUT.
Type of Optical Dilatometer Test : Dimensional Changes in Materials (Expansion and Shrinkage) with temperature Type of materials: Ceramics, Glasses, Carbon Composites, minerals and Polymers Test methods: ASTM E-228, ASTM C-372, ISO 7991 Type of system: Digital, horizontal, single sample, compact, benchtop system Temperature: -100 to 800 °C or higher Measuring system: Fused silica Sample Size (max): 50 mm long x 20 mm diameter LVDT Displacement Range: ±2.50 mm Temperature resolution: 0.05 °C Displacement Resolution: 0.01 microns or better Contact Load: adjustable Temperature Control: User Programmable Heating Rate: 1 to 30°C/minute (programmable at 0.01°C increments) Factory calibration with high purity platinum
Quality of fabric is key to the success of our business. This manual is to help suppliers understand the criteria to determine a fabric to be correct for quality. Suppliers must use the testing manual to select the required tests for product. If you supply fabric which does not meet Standards you will be liable for any returns & loss of profit to our business. We reserve the right to request extra testing at any point in the sampling & sealing process when deemed necessary. WE want to make their customers happy by producing clothing to be as easy as possible to care for. Therefore with this in mind, where possible we expect all product to be machine washable at 40c & tumble dryable.
FABRIC APPROVAL PROCEDURES
TECHNICAL SUBMISSION
Technical
Submission is the term used to describe a fabric at the development stage, a
fabric
which
is being proposed to Matalan but not actually bought yet.
A full physical test report must be submitted in line with the performance requirements. This can be in the form of a test report carried out for another retailer if available to save on testing
costs or from an independent testing house.
The
technical submission must be correct for handle, appearance and finish.
Technical
Approval can only be given when the below is submitted to the Buying Team /
Technologist:
• Fabric Specification Sheet
• Technical Hanger
• Physical Test Report
Upon approval Technical Hangers must be distributed to Garment & Fabric Suppliers
BULK FABRIC SUBMISSION Every fabric must be tested at 1st Bulk as per the required performance standard. Bulk Approval can only be given when the below requirements are submitted to the Buying Team / Technologist. • Bulk Hanger • 1st Bulk Test Report • All Legal Testing ( fibre comp, flammability etc ) Bulk submission is required on the 1st Bulk of each design or colourway. Some departments may require full/part garments to illustrate garment wash/placement etc. Bulk Colour Continuity must be monitored ensuring that each batch is a close match to the bulk hanger. If any batches are off-shade/borderline to the approved 1st Bulk Hanger, a A4 piece clearly labelled with the batch number must be submitted to the Buyer/Technologist. Bulk Shade Bands will need to be submitted on certain product areas. These occur with certain was processes & dye routes e.g. pigment garment dye. 2 copies of each shade band should be sent to the Buying Team for assessment. The bulk shade band should consist of the lightest & darkest points that are deemed commercial against the bulk hanger.
Materials Plastics, Composites Operation Two-handed operation required to release the pendulum Test Type Charpy test according to ISO 179, ASTM D 6110 Charpy test details Impact Energy capacity: 5.50 joules Instrumented pendulum Charpy pendulum with low vibration lightweight double carbon rod pendulum. Adapter plates for 10 mm wide and 4 mm thick specimen (ISO specimen) Data acquiring System for online monitoring and data acquisition (fixed) Core i5. Software Software including standardized test programs covering over 600 standards – Multi user license. Virtual testing software provides the option of using the software for teaching/training of wide range of tests without a testing machine Accessories Installation and commissioning of the apparatus as well as the training of NTU rep on site will be responsibility of the supplier at his own cost Read about Steel Ball Drop Impact Test Machine
Adapter plates for 10 mm wide and 4 mm thick specimen (ISO specimen) Data acquiring System for online monitoring and data acquisition (fixed) Core i5. Software Software including standardized test programs covering over 600 standards – Multi user license. Virtual testing software provides the option of using the software for teaching/training of wide range of tests without a testing machine Accessories Installation and commissioning of the apparatus as well as the training of NTU rep on site will be responsibility of the supplier at his own cost Read about Steel Ball Drop Impact Test Machine
Blade to the jaw above the distance: 22 ± 0.2mm 7 impact blade angle: 37 °±l °
Volume: about 550400690 mm
Seam Failure – Seam Slippage
DESCRIPTION:
Where the yarns in the fabric pull out of the seam from the edge. This often occurs on fabrics constructed of continuous filament yarns that are very smooth and have a slick surface. Also caused by loosely constructed fabrics. MINIMIZING SEAM FAILURES – SEAM SLIPPAGE:
Consider changing the seam construction to a French seam construction;
Increase the seam width or width of bite;
Optimize the stitches per inch;
Contact your fabric supplier.Seam Slippage on Rayon Fabric
Skipped Stitches
DESCRIPTION: Where the stitch length is inconsistent, possibly appearing as double the normal stitch length; or where you can see that the threads in the stitch are not properly connected together. Caused by the stitch forming device in the sewing machine missing the thread loop during stitch formation causing a defective stitch. On looper type stitches, this will allow the stitch to unravel causing seam failure.
MINIMIZING SKIPPED STITCHES
Use a better quality sewing thread. This may include going to a higher performance thread designed to minimize sewing interruptions. (See the Thread Selection Guide and/or Minimizing Thread Breakage & Skipped Stitches);
Insure proper machine maintenance and sewing machine adjustments;
Make sure sewing machines are properly maintained and adjusted for the fabric and sewing operation. (See Machine Maintenance Checklist);
Observe sewing operators for correct material handling techniques. 401 Chainstitch
Carton Machinery – Manufacturing of packaging materials including carton boxes(auto virgin paper & normal recycle paper),Card Board, Tissue Paper, Back Board, Neck board, Poly bag, Hanger, Offset Printing Press, Printed lebel, Care lebel, Plastic Clip, Colar insert, Butter fly, Tie bed, Gum Tape, Photo Inlay Board, Poly Recycle. Read about Carton Sealing Machine
5 ply Auto Coruugated Carton Machine
Slitter Machine
N.C Cutter Machine
Carton Printing Machine
Die Cutting Machine
7 ply Auto Coruugated Carton Machine
Slitter Machine
N.C Cutter Machine
Carton Printing Machine
Boiler -2.5 ton
Fork Lift-3000 Kg
Fork Lift-3500 Kg
Air Compressor
Air Compressor
Digital Bursting strength Tester
Manual Corrugation Machine
Auto Sheet Cutting
Hand Cutting
Pasting Machine
Pressure Machine
Four Bar Rotary Machine
Slotting Machine
Stitching Machine
Die Cutting Machine
Heidelberg Offset Printing Machine
Model:MOZPS (Two colour)
25.25×19 Inch
Heidelberg Offset Printing Machine
Model:GTO 46 (One colour)
12×18 Inch
Rolland Offset Printing Machine
Printed label Machine Four colour
Printed label Machine Six colour
Polar ECM 115 Cutting Machine
Laminating Machine
Die Cutting
Paper Cutting
Label Printing
TYPE
NAME OF ITEM
GARMENTS QTY.
ORDER QTY.
UNIT PRICE
REMARKS
ORDER NO./BUYER
MASTER CARTON
75108 PCS
H&M
H&M STANDARD AUTO CARTON
NORD SHIRT
SC4
58X 40 X 40 CM
300 CTN
US$1.28/PC
WITH PUNCHING
SC4
58X 40 X 40 CM
675 CTN
US$1.28/PC
NO PUNCHING
SC4a
58X 40 X 35 CM
25 CTN
US$1.19/PC
WITH PUNCHING
SC4a
58X 40 X 35 CM
30 CTN
US$1.19/PC
NO PUNCHING
SC4b
58X 40 X 30 CM
5 CTN
US$1.11/PC
WITH PUNCHING
SC4b
58X 40 X 30 CM
5 CTN
US$1.11/PC
NO PUNCHING
BULK HANGERS
A Bulk Hanger should be submitted to the relevant Matalan Buyer consisting of bulk production fabric ( approx A4 size ) in its fully processed state, e.g. post wash with an original swatch attached to a completed Fabric Hanger Top Some Buying Departments may require full/part garments to illustrate fabric effects/placement/garment wash to be submitted. These can be submitted using the Bulk Fabric Hanger Top. This is then used as the standard for subsequent batches.
BULK COLOUR CONTINUITY
If any batches are off shade/borderline to the bulk hanger, each lot must be submitted to the Matalan Buyer clearly labelled with the batch number.
BULK SHADE BANDS
These occur with certain wash processes and dye route e.g. pigment garment dye. One copy of each shade band should be submitted to the Matalan Buyer using the Bulk Shade Band Hanger Top.