Ink type, color, print size, location and opacity expectation
Coverage, edge definition, adhesion and hand feel
Heat transfer
Film type, artwork size, position and pressing limits
Edge lift, color, surface change and durability
Embroidery
Thread reference, size, stitch file, backing and placement
Density, distortion, puckering and small-detail clarity
Woven label
Yarn colors, dimensions, fold, cut edge and sewing method
Legibility, alignment and edge comfort
Metal badge
Material, finish, logo relief, fixing method and protective backing
Finish consistency, security and damage to contents
Step 7: Add Labels, Packaging and Carton Instructions
Packaging influences both cost and product condition. Define hangtags, barcode labels, care or origin labels, tissue, inserts, dust bags, polybags and carton packing early enough to include them in costing and compliance review. Show where each label is placed and who supplies the artwork or data.
State the folding method, whether straps are secured, which hardware needs protection and how bags are arranged in the carton. If shape recovery matters, define stuffing or support. Carton dimensions may remain provisional until the final sample is available, but the target pack quantity and destination requirements should be known.
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Packaging level
Questions to resolve
Record in the pack
<正文>
On-product
Which permanent labels are required and where?
Artwork, material, size, language and sewing position
Individual pack
How is the bag folded and protected?
Folding diagram, inserts, bag type and warning requirements if applicable
Inner pack
Are colors or sizes bundled?
Assortment, quantity and identification label
Export carton
What pack quantity protects the product and fits handling needs?
Carton type, target dimensions, gross-weight limit and marks
Pallet or delivery unit
Does the destination require a specific configuration?
Pallet, wrap, label and routing instructions where applicable
Step 8: Translate Quality Expectations into Checks
“Good quality” is not an inspection instruction. Identify the dimensions, functions and appearance points that matter most. Define test methods when a result cannot be judged visually. Requirements should fit the product's use, materials, target market and buyer risk assessment rather than being copied blindly from another style.
Link every critical quality check to a specification, approved sample or test requirement. Decide who will inspect, at which stage, using what sample plan or acceptance rule. The detailed Custom Bag Quality Inspection Checklist can help turn the tech pack into an inspection-ready document.
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Quality topic
Objective requirement example
Where to record it
<正文>
Dimensions
Named measurement point with finished tolerance
Measurement specification
Function
Zipper opens fully without catching; buckle locks and releases correctly
Functional-check list
Workmanship
No open seams, skipped stitches, exposed raw edges or unsecured thread ends in defined areas
Defect reference sheet
Appearance
Logo position, panel symmetry and acceptable color reference
Artwork page and approved sample
Strength
Buyer-defined load or performance test appropriate to intended use
Test protocol and report requirement
Packing
Correct assortment, protection, barcode and carton mark
Packaging specification
Step 9: Use the Sample to Close Open Points
The first sample is a working prototype, not a ceremonial approval. Review it against the tech pack point by point. Record each comment with a photo, location, requested change and priority. Distinguish a defect from a design revision: a defect fails the current specification, while a design revision changes it.
After each review, update the master pack and issue a clean revision. Do not rely on a marked sample alone, because marks can be lost and physical samples can deteriorate. Keep the final approved sample together with the final production issue. Our Custom Bag Sample Development Process explains how to organize prototype rounds and approvals in more detail.
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Comment status
Meaning
Required action
<正文>
Must correct
Product does not meet an agreed critical requirement
Revise before approval and show evidence
Design change
Buyer is changing the previous instruction
Update specification, cost and timing impact
Factory proposal
Supplier suggests a method, material or tolerance change
Buyer approves or rejects in writing
Accept for this sample
Temporary deviation is understood but not approved for bulk
Keep the production requirement unchanged
Approved
Point is accepted for the next controlled stage
Capture it in the master pack and approval record
A Practical Tech-Pack Workflow
A disciplined workflow keeps design, sourcing and production aligned. Build the pack early, then increase its precision as evidence becomes available. The document should mature with the product rather than being written once and forgotten.
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Stage
Buyer output
Factory output
Decision gate
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Concept and range selection
Brief, reference images and target parameters
Feasibility questions and relevant examples
Choose a workable product direction
Initial tech pack
Drawings, preliminary BOM, dimensions and branding
Cost assumptions, options and risk comments
Authorize prototype
Sample round
Consolidated review against the pack
Revised sample and updated material evidence
Approve or request another round
Pre-production
Production issue, artwork and packaging approvals
Material confirmations and production plan
Release bulk manufacturing
Production and inspection
Approved standards and inspection instructions
Goods, in-process records and packing evidence
Accept, correct or hold shipment
Reorder record
As-produced pack and lessons learned
Confirmed repeat specification
Start the next order from controlled data
The complete custom bag manufacturing process shows where these gates fit between design and delivery. When scheduling work, also allow enough time for sample rounds, material approvals and packaging confirmation; see How Long Does Custom Bag Production Take? for a fuller planning framework.
Common Tech-Pack Mistakes
Treating a reference photo as a specification
A photo can communicate style, but it rarely reveals hidden construction, material performance or exact scale. Use it as a reference and state which features should be followed.
Mixing approved and unapproved information
Use status labels, color coding or an open-point list. Production staff should not have to guess whether a note is final.
Changing the sample without changing the document
If the pack and approved sample disagree, the next team may follow the wrong reference. Update both the written requirement and revision log.
Over-specifying the wrong details
Do not spend pages controlling a minor visual point while leaving strap strength, pocket size or packaging undefined. Rank details by user impact and commercial risk.
Ignoring cost and manufacturing feedback
A tech pack should control the intended result, but it should also permit an informed discussion. Ask the manufacturer to identify expensive, fragile or inconsistent details and document any agreed alternative.
Tech-Pack Handover Checklist
<标题>
Check
Ready when…
<正文>
Document control
Every page carries the current item code, revision and date
Views and callouts
All exterior, interior and hidden critical details are shown
Measurements
Each point has a method, finished value and appropriate tolerance
Materials and trims
Every component has a specification and approval reference
Construction
Stress areas, seams, stitches, binding and reinforcement are defined
Branding
Method, artwork, size, color and placement are approved
Packaging
Labels, folding, protection, assortment and carton requirements are covered
Quality
Critical checks and objective acceptance references are available
Open points
Nothing unresolved is presented as production-approved
Sign-off
Authorized buyer and factory contacts know which issue controls production
Frequently Asked Questions
Do I need specialist software?
没有。 Professional design software can speed up drawings and revision control, but a well-organized PDF made from common drawing and spreadsheet tools can work. Clarity, measurement logic and version discipline matter more than the software name.
Can the manufacturer create the tech pack?
Yes, some manufacturers provide development support. The buyer should still supply design intent, use case, brand assets, target quantities and commercial priorities, then review and own the approved specification. Confirm whether drawing or development charges apply.
How detailed should the first version be?
Detailed enough to expose major cost and feasibility assumptions. Use open-point markers for information that depends on supplier advice or sampling. Do not label an incomplete document as approved for production.
Should tolerances be the same for every measurement?
没有。 Set them according to material behavior, construction method, product function and measurement repeatability. Discuss critical points with the manufacturer and inspector before production.
Is the approved sample enough for a reorder?
It helps, but a controlled as-produced tech pack is safer. Materials can change, samples age and undocumented production decisions are easily forgotten. Keep both the retained sample and final records.
Turn the Idea into a Factory-Ready Brief
A useful custom bag tech pack makes decisions visible. It tells the costing team what is being priced, the sample room what is being developed, production what must be repeated and inspectors what must be checked. Just as importantly, it shows which questions still need answers.
Ningbo Luckystar Commodities Co., Ltd. supports OEM and ODM bag development across multiple sewn-bag categories. Send your sketches, reference sample, target quantity, destination and required date. Our team can review the brief, identify missing specifications and suggest the next sampling step. You can also return to the complete custom bag manufacturer guide to evaluate capabilities, quotations and production controls.
Include the latest tech-pack revision, target quantity and delivery destination when requesting a quotation.
