Wednesday, 30 December 2015

Lean Manufacturing Tools Series-"5'S" (part-2)

5S is a perfect example of a bottoms-up approach to the lean methodology. There are many businesses, particularly in manufacturing, that are incredibly disorganized, leading to massively inefficient business practices, lost time, and sometimes even workplace injuries. 5S refers to the practice of workplace organization, and the methodical process of optimizing the layout of a manufacturing plant or workstation to become the most efficient, upbeat, and productive workplace it can become.
Appropriately named, 5S is the name given to the process because each step starts with the letter „S‟. Started by Toyota in the 1960‟s, it has framed the success of many manufacturing plants. The fundamental basis behind 5S is that a person or workstation will never waste time looking for tools and equipment because everything has its own place, is appropriately labeled, and flows to the point where the tool is within reach of where the worker will find themselves when working. If 5S is implemented properly, it is common to see efficiencies increase by a solid 20-30%.
[5S.jpg]





The first „S‟ is “Sort”, or “Seiri”.
 Management, or possibly the workers themselves, should go about the workplace and take note of which tools, equipment, and supplies are not needed for the everyday operation of the plant. If one is not needed, it is discarded, or at the very least,removed from the shop floor. Some tools and equipment will not be able to be discarded or removed because they are used, but only infrequently. If this is the case, then these tools should be noted as infrequently used, to be dealt with later.

The next phase is oftentimes considered the most important phase of the five. This is where
items are arranged, or 'Straightened' (or 'Seiton') systematically and methodically. All of the tools that were identified as unnecessary in the „Sort‟, phase have been discarded, so this phase
should be easy. You just simply place the tools such that workflow is maximized, and no tool is
any more than 30 seconds away from even the least experienced worker. This step is best
accomplished either by the worker that will be conducting the work or with their direct input.
It may help to include a diagram of all tools and their locations that is readily accessible for
reference for the worker during this step.
The next, and least popular stage is „Sweep‟, or Seisō. This step is where the workplace is cleaned,
and a new policy of periodic cleaning is implemented. Most manufacturing facilities find that
performing this step at the end of every shift is the ideal time for this action. The most
important aspect here is to maintain the workplace  in the order in which step 2 has identified as
being ideal.
As discussed earlier, all of the processes described here are not worth anything unless complete
buy-in by the average worker on the floor is achieved and practiced. This is where step 4 comes
in, „Standardize‟, or „Seiketsu‟. This is the step in which all personnel who will be practicing the 5 steps on a daily basis are brought completely on board and the practices are standardized by forms, procedures, personnel assignments, and workstation ownership.
The final step is that of „Sustain‟, or „Shitsuke‟. This step focuses on the requirement to maintain a constant expectation of good lean practices through feedback systems, evaluation and mentoring, training, and auditing. The company has come a long way in improving the workplace, and maintaining it in that improved state is a necessity.

It may not always be apparent as to when a company should use the 5S methodology to improve the workplace. Before any improvement is attempted, management should commission a study to improve their chances of finding the processes that should lead to a leaning of the workplace through 5S.
Everyday I will publish one tool's description.So visit my blog for next article where I will discuss about"Poka-Yoke "
Prepared By: Md. Tarikul Islam
                        01912885383
                         jonytex073@gmail.com




Tuesday, 29 December 2015

Lean Manufacturing Tools Series (Part-1)


It is true to say base of lean manufacturing is its concepts. But lean tools are very important too. They help in implementing, monitoring, and evaluating lean efforts and its results. On the other hand if used without proper understanding this can spoil your lean efforts. So it is very important to understand the tools before thinking about using them. So I thought of publishing a series of posts on these tools. I got the assistance of an experience contributor in making this series. Some of the tools we are going to discuss in this series of posts are listed below. I have no doubts you have been waiting for this kind of information.
 1. 5S
 2. Error proofing (Pokayoke)
 3. JIT
 4. Kaizen
 5. Kanban
 6. Pull system
 7. Work leveling – Heijunka
 8. Work cells
 9. Quick Changeover or SMED
 10. TAKT Time
 11. TOC – Theory of Constraints
 12. VSM – Value Stream Mapping
 13. Workflow Diagram
 14. TPM – Total Productive Maintenance
 15. Visual workplace
 16. Cause and Effect Diagram
 17. 5 Why technique
 18. Six Sigma
 19. Hoshin Kanri
 20. Jidoka
 21. Genji Gembutsu
 22. Andon

Everyday I will publish one tool's description.So visit my blog for next article where I will discuss about" 5'S "
Prepared By: Md. Tarikul Islam
                        01912885383
                         jonytex073@gmail.com





Friday, 25 December 2015

Learning to lead:A simple Lean journey (Part-2)




Prepared By: Md. Tarikul Islam
                        01912885383
                         jonytex073@gmail.com




Thursday, 24 December 2015

Learning to lead:A simple Lean journey










Prepared By: Md. Tarikul Islam
                        01912885383
                         jonytex073@gmail.com

Lean History





Prepared By: Md. Tarikul Islam
                        01912885383
                         jonytex073@gmail.com

Sunday, 20 December 2015

Details about Sourcing:::an important part of apparel merchandiser

‘Sourcing is defined as the process of determining how and from where manufactured goods or components will be procured.’ The main motivational force to do sourcing of garments/fabrics is to give the highest level of satisfaction, at low production cost. Today’s business strategy is shifting the certain operations from apparel value chain to low cost and takes competitive advantage to enhance the profit margin.

For garment export house fabric and trims are the raw material which needs to be outsourced. Sourcing is basically determining the most cost efficient vendor of materials, production, or finished goods at the specified quality and service level. It is closely associated and an important part of apparel merchandiser’s responsibility.

Sourcing department along with apparel merchandiser plays the vital role to execute and shipment of export order successfully. Merchandiser must make sure that all approvals related to fabric and trims should be coordinated with the sourcing department in given timeframe. Fabric sourcing department is basically engaged in determining how and where its merchandise i.e. fabric will be obtained within the scheduled time and cost. The different parameters in sourcing i.e. lead time, process of fabric and trim approvals, cost of logistics and incoterms need to keep in mind while deciding the sourcing tactics for particular export order.

Types of sourcing:

Type fabric sourcing

Description

Local manufacturer

Fabric is manufactured locally, with local infrastructure.

Traditional export

Local fabric is exported to garment manufacturing countries.

International sourcing
.

Fabric is made locally, but raw i.e. yarn or fibre is sourced from other country


Global sourcing


Fabrics are made with parts sourced from abroad as part of global sourcing strategy.


Off-shoring

Raw material is exported first i.e. yarn or fibre, then fabric is
reimported to meet the demand.

Global manufacturing    Fabric is manufactured in other country.


Role of production merchandiser in sourcing:
The sourcing and merchandising has the same goal to meet i.e. to get right fabric/trims at right place on right time and with right price. As merchandiser is key person in whole order processing hence sourcing is the integral part of merchandising activities. The role of merchandiser in sourcing can be described as

In small export house merchandiser bares the responsibility of sourcing
In large export houses sourcing team coordinates merchandiser to source the fabric and trims.
Merchandiser is responsible for calculate fabric and trim consumption per garment and coordinate it with sourcing department.
The approvals related to fabric i.e. lab-dips, desk-loom, print-strike-off, dye-lot, thread run, needs to get from buyer within time frame.
The art work, trim card need to get approved from buyer which is responsibility of merchandiser.
To maintain the proper buffer in Time and action calendar is the responsibility of merchandiser.

The process of fabric/trims sourcing
The process of fabric sourcing is very dynamic, it changes with the fabric type, cost quoted by fabric supplier, lead time, buyers requirement. The typical process of fabric sourcing in an export house can be described as:

The material and information flow

The material and information flow in sourcing is from buyer to either to buying house or garment manufacturer. And buying house or garment manufacturer passes this information to fabric and trim supplier. According to information fabric and trim supplier supplies the material to garment manufacturer. Sometimes buyer has nominated supplier for fabrics and trims hence; buyer shares all the information to fabric and trims supplier directly and ask merchandiser to source the fabric and trims as per requirement of order. In this case the all-risk related to fabric and trims i.e. delay, variation, quality checks is transfer to fabric and trim supplier and solely bare by the buyer.

Factors affecting sourcing of fabric and trims

Lead time:

Fabric and trim sourcing is very time consuming process which includes desk loom and lab-dip approvals, trim and art work approval, FPT approval. The fabric sourcing itself will take lead time of 30-60 days depending upon type of fabric for yarn dyed fabric it takes approx.45 day, for piece dyed fabric it take approx. 30 days and for fibre dyed fabric it takes approx.55-60 working days. Merchandiser needs to decide the supplier of the fabric supplier on the basis of type of fabric and time remains in hand to complete the export order. If fabric sourced from other country, then time required for transportation needs to keep in mind.

Trim sourcing is another important factor that needs to take care. For trims generally it takes 30 days to get in-house. That is also depends upon type of trims and from where trims are getting procured.

Logistics:
Logistics is one of the main factors which affects the fabric sourcing drastically. There are several aspects those are 1. Time required for transportation 2. Infrastructure for logistics 3. Cost of logistics. Merchandiser needs to keep in mind these factors while placing the order for fabric or trims. The time required for transportation is very important to achieve the accurate lead time of fabric/trims procurement. Absence of adequate infrastructure will lead to delay in fabric procurement. Cost of logistics will directly affect the cost of garment; hence merchandiser should be well aware about these aspects of logistics and then place the order for fabric and trims.

Quality parameters:
The demand for high-quality low-cost fabric/trims coupled with the need to reduce costs to increase operating profits is driving more companies to outsource manufacturing overseas. Though sourcing is an effective way to do business but sometimes fabric and trims supplier cannot meet the quality parameters, which will lead to trouble for apparel merchandiser to execute the export order.

The ability of sourcing partners to produce quality fabric and trims consistently depends on a number of factors. One of the main factors is skill of the workforce and their worker’s flexibility to work to produce wide range of fabrics and trims. The technology up -gradation of the sourcing partners. Another important factor is the accuracy of written communications and instructions received from the garment manufacturer/ apparel merchandiser.

Sourcing costs:
The sourcing decisions are taken mainly on the basis of cost manufacturing. But now a days garment exporters makes strategic bonding with fabric and trims vendors. The buyers also makes bonding with fabric and trims vendors, these are called nominated vendor. The sourcing cost depends upon following factors
Labour wages
Manufacturing cost
Cost of logistics/transportation
Incoterm negotiated(for international sourcing)
When comparing the costs of manufacturing a fabric and trims offshore or domestically, manufacturers must include all the hidden costs of added processes and steps that go hand in hand with offshore production. The cost of sourcing is optimised when fabric and garment manufacturing units are under one roof or closer to each other. The freight chargers are increased when there delay in manufacturing and material need to send with air freight.

Minimum Order Quantity (MOQ):

This is the important factor that affects the sourcing. For sourcing of fabric and trims there is always a MOQ for which directly affects the cost. Every supplier requires a certain MOQ to produce the fabric and trim economically; otherwise the cost of running the production is higher if production is below MOQ. If garment exporter places the order of raw material below MOQ then generally cost will be more for that. Hence throughout the supply chain MOQ is maintained the in order to achieve the appropriate cost of production.

Types of supplier:

In garment industry suppliers are appointed by export house or by buyer, for the production of fabric and trims. As there are limitations of manufacturing of fabric and trims for garment export houses, though some export houses has in-house fabric production, it has become increasingly common in garment industry to source the fabric and trim from others rather than employing a large production capacity themselves. The main advantage of sourcing the fabric and trim is the transfer of risk and enables the garment exporter to concentrate on only garment production. However, another concerns have been expressed about the prevalence of supplier because of a perception that the exporter has less control over the skills and training of supplier’s employees and so there may be a negative impact on quality and health and safety on site. There are two types of suppliers namely

Nominated supplier
Non nominated supplier

For both type of supplier lead time generally remains same irrespective of MOQ, order quantity, quality parameters of the raw material. Transit lead time will change with the location of the supplier i.e. domestic and overseas supplier.

Nominated supplier:

Nominating the supplier is a common practice in garment industry, a procedure that was initiated by buyers to achieve better control over their supply chain, is now a very common practice followed in the garment export industry and has many aspects to it. These days a buyer nominates suppliers mainly for products like accessories, fabrics, packaging material and logistics to gain better control over their supply chain, get consistent quality and on time deliveries. The most important factor is the standardization of the product as, by nominating suppliers, buyers intended to get raw materials which is having consistent quality and with no defects or flaws. The second important reason for nomination is on time deliveries as buyers were getting delayed orders and most of the times agents/manufacturers blamed suppliers of trims, accessories or fabrics for the delays.

Advantages of nominated supplier:

Time saving for garment manufacturer because they only have to deal with one company to provide basic raw material.
Quality assurance of the raw materials is consistent and taken care by buyer
Nominated supplier can be involved in product development since they are already having good experience in this field.

Along with these advantages there are certain disadvantages for nomination of suppliers

Nominated Suppliers may become overconfident about their product quality
There may be a Monopoly of supplier in the market
Nomination may leads to unethical practices like corruption by agents and traders
Loss of price competitiveness as suppliers sometimes overcharge

Non-nominated supplier:
Non nominated suppliers are the garment manufactures source of raw material.  Sometime buyers provide the specification of the raw materials and ask garment manufacturer to source the same their own suppliers. Non nominated supplier has their own advantages and dis advantages.

As they have challenge to sustain in business, hence non nominated supplier try their best to follow the instructions given by buyer or garment manufacturer
 The cost is competitive to market, which makes them advantageous
Garment exporter may get chance to explore with the innovative products offer by non-nominated supplier.

The disadvantages of these suppliers are

There may be flaws in quality of the raw material due to communication gap between buyer and supplier.
To get involved these suppliers in product development process is difficult task.
It will be difficult for buyer to control the social compliance and ethical business practice norms on these suppliers effectively.

Ordering specifications:

Garment exporter must give specifications to the supplier to get the accurate raw material. The ordering specifications are as

Raw material
Ordering specification

Fabric
§  Fabric design (desk-loom)
§  Fabric swatch(if provided by buyer)
§  Lab-dip/colour standard
§  GSM (Gauge in case of knitted)
§  Yarn count
§  Cuttable fabric width
§  EPI/PPI
§  Fabric finish
§  Requirements of dyes and finishing chemicals
§  Unit of measurement i.e. meter/ yard for woven and KG for knitted
§  Order quantity
§  Shrinkage tolerance
§  Fastness properties

Buttons
§  Raw material i.e. wood, nylon etc.
§  Colour (sample provided by buyer)
§  Unit of measurement I.e. linge
§  Order quantity
§  Quality parameters
§  Button strength
§  Colour fastness
§  Order quantity

Zippers
§  Raw material i.e. metal, nylon
§  Colour
§  Length
§  Type of puller
§  Zipper finish
§  Fastness properties
§  Zipper strength requirements

Thread
§  Colour I.e. thread run
§  Thread specifications i.e. 2 ply, 3 ply
§  Fibre type i.e. filament yarn, or staple yarn
§  Thread ticket no. (thread count)
§  No. of cones
§  Meter of thread content on cone i.e. 1000, 5000 meter.
§  Finish
§  Thread construction
§  Fastness properties
§  Strength
§  Heat sensitivity

Label
§  Type of label i.e. printed, jacquard
§  Design specification of label
§  Size specification of label
§  Colour combination
§  Font type
§  Font size
§  Line spacing
§  Care Instructionstype
§  Fastness properties
§  Dimensions of the label

Polybag
§  Polybag Thickness
§  Raw material specification i.e. polyethylene. Polypropylene etc.
§  Colour
§  Dimensions
§  Specification of Print on polybag
§  Type of closure
§  Type of dents

Cartons
§  No of plies i.e. 3,7
§  Raw material
§  Dimensions
§  GSM of the paper
§  Print specification of cartons
§  Type of carton
§  Dimension tolerance
§  Bursting strength

Interlining
§  Fibre content
§  Construction specification i.e. woven/non-woven
§  GSM
§  Colour
§  Fastness properties
§  Fusible /non-fusible
§  Shrinkage

Approximate Lead time requirement for domestic and overseas sourcing

Article   Domestic sourcing           Overseas sourcing
Fabric (solid dyed)           30 days 45 days
Fabric (y/d dyed)             45-60 days           55-70 days
Fabric (fibre dyed)           75-90 days           90-120 days
Buttons                10-15 days           20-25 days
Zipper   7-10 days             10-15 days
Thread  7-15 days             -
Label     7-15 days             20-25 days
Poly bag               7-10 days             -
Cartons 7-10 days       
      -

These lead time are depends upon the quantity and considering the ideal condition. In any emergency case supplier can also supply the fabric is less duration.
Prepared By: Md. Tarikul Islam
                        01912885383
                         jonytex073@gmail.com