In order to ensure color fastness and wash durability of a pigment printed fabric a complete curing process must take place. Read also Printing and Packaging Machine Spare Parts
This is achieved after the printing process and in the drying stage where the print paste, through the binder’s fusion process, binds with the surface of the fabric.An incomplete curing will cause one or a combination of the following: Cracking of the printed areas, particularly if thicker pigment paste is used Flaking of the pigment paste Poor crocking in both dry and wet state Poor wash fastness and durability
Preventive Suggestions:
The curing temperature often depends upon the type of the
base fabric, the extent of the coverage, the thickness of the paste and the
type of binders used.However, as a general rule, for an effective curing to take
place, the printed areas need to be exposed to temperatures of no less than 360
degrees Fahrenheit for approximately 8 to 10 seconds.
Corrective Measures
For this problem no corrective measures are available.Incomplete Steaming and Fixing of Wet Prints-
Definition and Causes
When using the wet print process it is important to ensure a thorough and complete steaming process is carried out. This is done to facilitate the dye absorption and establish sharp print definition. Failure to do this will result in one or a combination of the following:
Lack of full dye exhaustion
Poor crocking
Poor color fastness and wash durability
Preventive Suggestions
Correct steaming process must be used. Prior to printing the
fabric must be checked for the presence of An-ionic softener residue. Any
left-over residue might affect the steaming procedure.
Corrective Measures
For this problem no corrective measures are available.Incomplete Removal of Base Color in Discharge Printing-
Definition and Causes
The basic premise of discharge printing, which is done on an already dyed fabric, is to remove the dyed base, in pre-determined areas, and to replace it with a new color thus creating a printed pattern. This type of printing is normally done on synthetic and cellulose fabrics where lighter shades need to be printed on a darker ground color. The incomplete removal of the base color will result in a lack of print sharpness and definition.
Preventive Suggestions
The use of appropriate chemicals and at correct conditions
is essential.The chemicals that are used are of the” reducing” types and
must be used, in most cases, in an alkali stable condition. Any presence of acid based components may lead to the
decomposition of the reducing agents.
Corrective Measures
For this problem no corrective measures are available. Incomplete Pattern Transfer in Heat Paper Transfer Printing-
Definition and Causes
Heat paper transfer printing is a common process predominantly used on synthetic fabrics. It is a delicate process but it can be performed at very high rates of production. It is done by placing the especially constructed patterned papers on to the surface of the fabric and through the application of heat cause the transfer of the patterns from the paper to the surface of the fabric.
The most common problem with this process is the incomplete
transfer of patterns which is due to the inappropriate finish of the fabric.
Preventive Suggestions
If the fabric is contaminated with certain silicone softeners and resins, this transfer process may be adversely affected.
Corrective Measures
For this problem no corrective measures are available.
Minimum
slot opening distance (MM) anti-knife (L * W * L * W)
250*70*250*70mm
Minimum
slot height
7*100mm
For
Board Thickness
0-10mm
Main
motor power
7.5KW
Total
power
16KW
Paper
kicking accuracy
Degree
of bending of the national standards, kicking paper error of plus or minus
1.5MM
Slotted
precision
Degree
of bending of the national standard, slotted error of plus or minus 2MM
Function and Feature: Our company has developed ZYM series of roller printing and die-cutting machines, , which is a new ideal production equipment in carton production industry in recent years.
Conclusion
The Die Cut Printing Machine is mainly the automatic document feeder board., printing, slotting, corner cutting, trimming, drilling (any shape), and other procedures forming a printing and die cutting equipment, the compact mechanical structure, simple operation, adjustment convenient, advanced performance, high efficiency, ensure that processing of high-grade cardboard carton production industry an ideal replacement machine. It is suitable for a variety of shaped cardboard boxes or cartons.
What is Fall Protection – Every year many construction workers are killed or seriously injured as a result of falls from height, most of these accidents are preventable. You can read HP Canon Printer Fuser Roller sss
What Is Fall Protection:
It involved every plan and equipment put in place to prevent people working at height from falling, it is important that before you make up your mind to go on height to work that all necessary protection are in place for your protection, viz sss
Guard rails system
Personal Fall arrest system
Safety nets etc
Warning Line system
Floor covering or barricade system
All these primary fall protection system must be constructed in such a way that it should be able to withstand the total weight that will be put on it in the event of emergency.
All personnel working at height must wear and use correctly a safety harness with double lanyard for 100% fall protection.
Tips on the use of double lanyard
Do not hook the two lanyard at the same time
Hook only one lanyard at a time, it is enough to hold you
Use the remaining lanyard to hook before removing the first one in case you want to change your location and there is obstruction that will not allow the first lanyard to travel with you
Do not tie knot on the lanyard, as this will reduce the strength of the lanyard.
Always hook up above your head to reduce the free fall distance
Laundry Maintenance are not maintained periodically. No machine maintenance schedule (catalog basis). No SOP is posted in place.
Approved printing artwork and instructions not displayed and not in local language.
Standard handling procedure of chemicals is not displayed only MSDS is posted.
Laundry Maintenance
Laundry formulas are not posted in local language and not displayed. Operators not aware of laundry formulas.
No maintenance record maintained for laundry machines.
No inspection process in place after each batch. No inspection report to verify that seconds are repaired/rewashed before entering production workflow.
Approved laundry reference sample not available with laundry formula in local language attached.
No record maintained for 100% inspection after washing.
No SOP established for chemical handling. MSDS not found for some chemicals.
Factory does not conduct water quality test to ensure consistency for laundry. Laundry is not strong in research & development to provide washing formulas.
Lighting should be between 60-80 FC (645-861 Lux) and at least 80 FC (861 Lux) in inspection areas, but also not too high.
knitting machine contents list does not include knitting needles
items in the box under the knitting machine are not on the list no testing lab available yarn store has other items stored in it accessory store has other items stored in it operator training room required for regular training programmes
Organized Warehouse/Store with segregation by shade.
Segregation with OK and reject accessories & Fabrics.
Reject Fabric & accessories area should be marked.
AQL base quality report.
Special machine with calibration certificate and SOP
Lighting should be more than 40 FC in warehouse and store.
Approved sample with proper comments should be hanged on each line.
Approved sample with accessories to be displayed in finishing section.
Sample of packing standard should be displayed in packing area.
Sample room to be well organized and with adequate lighting with more than 40FC.
Special machines operator must to be designated.
Inspection area must to be with adequate lighting with about 70 FC.
Quality Manager and QA auditor/Manager must stay on site to solve their question.
Well equipped lab room with expert technicians.
Needle free zone should be secured and the needle detector machine must be operational.
Pressing standard should be displayed on pressing area.
Temperature & pressure should check 2-3 times per day for fusing machine with proper report.
Sufficient storage for bulk cut parts and properly covered.
Conclusion
Laundry Maintenance – Sufficient space, rack or trolley should be arranged for storage of bulk cut parts and light color should be covered with poly bags in cutting section.
