Color Fastness Testing for Bag Fabrics & Logos

The Production Path a Custom Bag Follows

If you are targeting United States with a mid-range positioning, the key is to prevent variance: materials, trims, workmanship and packout rules must be written and checked.

Primary keyword for SEO: custom bag OEM. Secondary: bag quality control, custom bag manufacturer, private label bags, custom logo bags, OEM ODM bags.

Process controls behind a repeatable build

Where you need the granular row detail, the full manufacturing workflow carries it with the test methods and sample sizes attached.

Any tour worth taking is a control-point checklist in disguise, not a showroom trip.

Each stage, in the order it happens

1. Get the brief straight first: claim, cost target and packing spec, then cut samples.
2. Within material sourcing, lock by spec: coating/laminate spec, fabric route, trim vendors.
3. Templates, tolerance bands and a reinforcement plan come next.
4. Cutting stage: check grain direction plus marker efficiency; hold shade lots steady.
5. Sewing and welding: hold the line on stitch spec, seam allowance, critical-zone reinforcement.
6. At the final assembly stage, placement jigs position logos, hardware and accessories.
7. Inspect to AQL, mark the cartons and raise the shipping documents.

Typical buyer use scenarios

• brand launches
• wholesale programs
• corporate procurement
• retail distribution

Key functions buyers request most

• custom sizing
• durable construction
• logo branding options
• retail-ready packaging
• consistent QC

Choosing the Best Materials for Custom Bags

Getting to two or three candidate fabrics

1. Let the use case lead: abrasion, load paths and moisture pick the fabric for you.
2. Decide whether the claim covers the whole bag or only zones like the main compartment.
3. Every referenced ISO/AATCC/ASTM procedure should be listed, together with the numeric bar for approval.
4. Choose route-suitable trims, from zipper type and sliders to buckles and webbing strength.
5. Confirm that print and branding suit the specified fabric.
6. Scuffing and creasing usually trace to transit, not to stitching defects.

Development Sequence for a Custom Build

Fields your tech pack cannot skip

• Measurement table: critical dimensions and tolerances by zone
• Construction notes: stitch type, stitch density, seam allowance, reinforcement mapping
• Branding method: print/embroidery/patch method, backing, and acceptance examples
• Retail packing spec: insert, polybag, carton count, carton marking, barcode placement
• Testing plan: references and pass criteria (ISO/AATCC/ASTM to spec)
• Revision control: version number, change log, and approval record

Development steps in working order

1. Set the buyer, the price bracket and the slot it fills.
2. Confirm the claim scope and its test plan by spec.
3. Artwork placement, tolerance map, measurement table and BOM: four pieces that make the tech pack.
4. Fit, structure and material route get validated at prototype sampling.
5. Final BOM, final packaging route: the PP stage.
6. Sign-off requirement: QC checklists plus the reference sample, ahead of bulk cutting.

Sampling pitfalls and how to close them

• Confirm fabric shade and coating feel with the actual supplier lot (as specified).
• Load-test every anchor point: webbing, grab handles and D-ring areas, to specification.
• Confirm the zipper path, then slider feel, then the cycle requirement per spec.
• Three things need checking per lane: rub marks, folding lines, and defence against humidity.
• One PP sample, built with the final BOM and final packing route, is what needs approval.
• Lock all changes before bulk cutting; avoid late feature creep.

Where sample rounds get saved

Condensed here by design — the extended comparison belongs to the full manufacturing workflow, alongside the rest of the reference data.

A programme that reorders cleanly

Success example (anonymized): a mid-range program targeting United States reduced rework by freezing a single tech pack, running one pre-production sample using the final BOM, and aligning QC checkpoints before cutting. A construction that can be duplicated means each season's reorder goes to the same partner.

How the Order Is Actually Produced

Weigh MOQ requirements against turnaround duration and price tier using the options table.

Which method, and why it matters

• Bonding / lamination requirements and peel strength targets (per spec)
• Foam thickness and density for structure (per the specification)
• Stitch density and thread type for load zones (to spec)
• Fittings installation: jigs, torque control, and anti-loosening measures (per spec)

How the Mark Goes On, and What Closes the Bag

Branding options and where each fits

• Screen print / heat transfer (best for clean graphics and scale)
• Woven/TPU/rubber patch (durable, consistent placement with jigs)
• Custom zipper puller / metal logo (premium trims, longer lead time)

Assembly checks before the carton closes

• Thread trimming and burn control (no loose ends, no scorch marks)
• Trims and hardware function check: buckles, sliders, and snaps
• Zipper end reinforcement and smoothness check
• Visual check for wrinkles, creases, and surface scuffs before packing

Logistics and Fulfilment

Freight milestones to hold

• Assess how the item fares when dropped or pressed.
• Warehouse scanning depends on locked labeling, barcodes and carton counts.
• Buffer time should be planned around inspections and export documents.

How to Vet a Bag Production Route

Check every point here prior to signing your OEM/ODM bag contract.

Due diligence, item by item

1. Can they work from a pack and tell you what they inferred?
2. Are alternatives by spec offered, and BOM sourcing controlled by them?
3. Do they evidence QC checkpoints, IQC to IPQC to FQC, and an AQL plan?
4. Without hurting workmanship, can they allow a flexible MOQ?
5. Can they give firm lead time commitments and a defined escalation path?
6. Do they bring packaging and shipping know-how that fits your market?

Audit points to tick before you commit volume

• Incoming material inspection records and traceability by lot
• Needle control and metal detection process (if required to spec)
• Measurement tools calibration and template storage
• Packing area: carton marking, barcode process, and SKU separation
• Corrective action loop: how issues are documented and closed
• Load space reality: line balance, overtime policy, and peak season plan

Strengths worth weighing

• Strong at structured bags: stand bags, hard-base bags, specialized tooling
• Multi-stage QC system: incoming material → inline → pre-shipment
• Sustainable options: RPET, recycled nylon, eco-friendly fabrics

Rubbing, Washing and Light: Three Colour Tests That Matter

Colour complaints arrive in three forms: dye rubbing off onto clothing, a shade shifting after washing, and a logo changing under shop lighting. Each has its own test, and passing one says nothing about the other two, which is why a fabric approved only on a visual match still generates returns. A colour programme should name all three tests and their acceptance grades in the specification before a metre is dyed.

Rubbing, or crocking, is measured to AATCC 8 for small areas and AATCC 165 for larger patterned or pile surfaces, with a white cloth rubbed 10 times dry and 10 times wet. Results are read on the grey scale for staining from 1 to 5, and a shade destined for a light-coloured garment contact should hold 4 to 5 dry and 4 wet. Pigment prints run wetter than dyes, so logo areas are tested separately from the shell.

Wash fastness runs to ISO 6330, normally five cycles at 40 degrees with a reference detergent, and is read on two scales: shade change of the sample itself and staining of the adjacent multifibre strip. A practical acceptance is grey scale 4 for shade change and 4 for staining, with an instrumental colour difference held to a delta E of 2.0 or less against the approved standard. Shifting beyond delta E 3.0 is visible to most retail buyers on a shelf.

Light fastness matters for window displays and for bags that sit in a car. Fabric is rated on the blue wool scale, and a rating of 4 or better is expected for anything merchandised under direct lighting for more than two weeks. Fluorescent and some bright acid shades on nylon struggle here, which is a specification conversation rather than a production defect.

Setting a Colour Tolerance That Both Sides Can Hold

Logo method drives the fastness profile as much as the ink does. Screen-printed plastisol deposits a 120 to 160 mesh film that sits proud and is prone to wet crocking; heat transfer applies at 150 to 160 degrees for 12 to 15 seconds at roughly 0.35 MPa and gives cleaner edges; silicone patches are vulcanised at 160 to 180 degrees and hold up best against abrasion and washing; embroidery at a 0.4 mm stitch length avoids dye entirely, since the thread is solution-dyed.

Property	Method	Typical acceptance
Dry and wet rubbing	AATCC 8, AATCC 165	Grey scale 4 dry, 4 wet
Wash fastness	ISO 6330, 5 cycles at 40 degrees	Shade change 4, staining 4
Shade match	Instrumental, D65, 10 degree observer	Delta E 2.0 maximum
Light fastness	Blue wool scale	Rating 4 for display goods
Abrasion of print	ISO 12947	No film loss at 10,000 rubs
Restricted substances	REACH, CPSIA, Prop 65	Screening per material lot

Colour is approved as a physical standard, not a number on a screen: a signed lab dip plus a retained production shade band, checked under D65 lighting, is what settles disputes later. Pigments and inks also have to clear restricted substance rules including REACH (EC 1907/2006), CPSIA and California Prop 65, and OEKO-TEX Standard 100 certification is often requested by European retail accounts. Our production team submits lab dips within the 6 to 10 working day sampling window and keeps the approved standards for 12 months. Documentation sits within custom bag quality certification.

Rubbing, Washing and Light: Three Colour Tests That Matter

Colour complaints arrive in three forms: dye rubbing off onto clothing, a shade shifting after washing, and a logo changing under shop lighting. Each has its own test, and passing one says nothing about the other two, which is why a fabric approved only on a visual match still generates returns. A colour programme should name all three tests and their acceptance grades in the specification before a metre is dyed.

Rubbing, or crocking, is measured to AATCC 8 for small areas and AATCC 165 for larger patterned or pile surfaces, with a white cloth rubbed 10 times dry and 10 times wet. Results are read on the grey scale for staining from 1 to 5, and a shade destined for a light-coloured garment contact should hold 4 to 5 dry and 4 wet. Pigment prints run wetter than dyes, so logo areas are tested separately from the shell.

Wash fastness runs to ISO 6330, normally five cycles at 40 degrees with a reference detergent, and is read on two scales: shade change of the sample itself and staining of the adjacent multifibre strip. A practical acceptance is grey scale 4 for shade change and 4 for staining, with an instrumental colour difference held to a delta E of 2.0 or less against the approved standard. Shifting beyond delta E 3.0 is visible to most retail buyers on a shelf.

Light fastness matters for window displays and for bags that sit in a car. Fabric is rated on the blue wool scale, and a rating of 4 or better is expected for anything merchandised under direct lighting for more than two weeks. Fluorescent and some bright acid shades on nylon struggle here, which is a specification conversation rather than a production defect.

Setting a Colour Tolerance That Both Sides Can Hold

Logo method drives the fastness profile as much as the ink does. Screen-printed plastisol deposits a 120 to 160 mesh film that sits proud and is prone to wet crocking; heat transfer applies at 150 to 160 degrees for 12 to 15 seconds at roughly 0.35 MPa and gives cleaner edges; silicone patches are vulcanised at 160 to 180 degrees and hold up best against abrasion and washing; embroidery at a 0.4 mm stitch length avoids dye entirely, since the thread is solution-dyed.

Property	Method	Typical acceptance
Dry and wet rubbing	AATCC 8, AATCC 165	Grey scale 4 dry, 4 wet
Wash fastness	ISO 6330, 5 cycles at 40 degrees	Shade change 4, staining 4
Shade match	Instrumental, D65, 10 degree observer	Delta E 2.0 maximum
Light fastness	Blue wool scale	Rating 4 for display goods
Abrasion of print	ISO 12947	No film loss at 10,000 rubs
Restricted substances	REACH, CPSIA, Prop 65	Screening per material lot

Colour is approved as a physical standard, not a number on a screen: a signed lab dip plus a retained production shade band, checked under D65 lighting, is what settles disputes later. Pigments and inks also have to clear restricted substance rules including REACH (EC 1907/2006), CPSIA and California Prop 65, and OEKO-TEX Standard 100 certification is often requested by European retail accounts. Our production team submits lab dips within the 6 to 10 working day sampling window and keeps the approved standards for 12 months. Documentation sits within custom bag quality certification.

Rubbing, Washing and Light: Three Colour Tests That Matter

Colour complaints arrive in three forms: dye rubbing off onto clothing, a shade shifting after washing, and a logo changing under shop lighting. Each has its own test, and passing one says nothing about the other two, which is why a fabric approved only on a visual match still generates returns. A colour programme should name all three tests and their acceptance grades in the specification before a metre is dyed.

Rubbing, or crocking, is measured to AATCC 8 for small areas and AATCC 165 for larger patterned or pile surfaces, with a white cloth rubbed 10 times dry and 10 times wet. Results are read on the grey scale for staining from 1 to 5, and a shade destined for a light-coloured garment contact should hold 4 to 5 dry and 4 wet. Pigment prints run wetter than dyes, so logo areas are tested separately from the shell.

Wash fastness runs to ISO 6330, normally five cycles at 40 degrees with a reference detergent, and is read on two scales: shade change of the sample itself and staining of the adjacent multifibre strip. A practical acceptance is grey scale 4 for shade change and 4 for staining, with an instrumental colour difference held to a delta E of 2.0 or less against the approved standard. Shifting beyond delta E 3.0 is visible to most retail buyers on a shelf.

Light fastness matters for window displays and for bags that sit in a car. Fabric is rated on the blue wool scale, and a rating of 4 or better is expected for anything merchandised under direct lighting for more than two weeks. Fluorescent and some bright acid shades on nylon struggle here, which is a specification conversation rather than a production defect.

Setting a Colour Tolerance That Both Sides Can Hold

Logo method drives the fastness profile as much as the ink does. Screen-printed plastisol deposits a 120 to 160 mesh film that sits proud and is prone to wet crocking; heat transfer applies at 150 to 160 degrees for 12 to 15 seconds at roughly 0.35 MPa and gives cleaner edges; silicone patches are vulcanised at 160 to 180 degrees and hold up best against abrasion and washing; embroidery at a 0.4 mm stitch length avoids dye entirely, since the thread is solution-dyed.

Property	Method	Typical acceptance
Dry and wet rubbing	AATCC 8, AATCC 165	Grey scale 4 dry, 4 wet
Wash fastness	ISO 6330, 5 cycles at 40 degrees	Shade change 4, staining 4
Shade match	Instrumental, D65, 10 degree observer	Delta E 2.0 maximum
Light fastness	Blue wool scale	Rating 4 for display goods
Abrasion of print	ISO 12947	No film loss at 10,000 rubs
Restricted substances	REACH, CPSIA, Prop 65	Screening per material lot

Colour is approved as a physical standard, not a number on a screen: a signed lab dip plus a retained production shade band, checked under D65 lighting, is what settles disputes later. Pigments and inks also have to clear restricted substance rules including REACH (EC 1907/2006), CPSIA and California Prop 65, and OEKO-TEX Standard 100 certification is often requested by European retail accounts. Our production team submits lab dips within the 6 to 10 working day sampling window and keeps the approved standards for 12 months. Documentation sits within custom bag quality certification.

Rubbing, Washing and Light: Three Colour Tests That Matter

Colour complaints arrive in three forms: dye rubbing off onto clothing, a shade shifting after washing, and a logo changing under shop lighting. Each has its own test, and passing one says nothing about the other two, which is why a fabric approved only on a visual match still generates returns. A colour programme should name all three tests and their acceptance grades in the specification before a metre is dyed.

Rubbing, or crocking, is measured to AATCC 8 for small areas and AATCC 165 for larger patterned or pile surfaces, with a white cloth rubbed 10 times dry and 10 times wet. Results are read on the grey scale for staining from 1 to 5, and a shade destined for a light-coloured garment contact should hold 4 to 5 dry and 4 wet. Pigment prints run wetter than dyes, so logo areas are tested separately from the shell.

Wash fastness runs to ISO 6330, normally five cycles at 40 degrees with a reference detergent, and is read on two scales: shade change of the sample itself and staining of the adjacent multifibre strip. A practical acceptance is grey scale 4 for shade change and 4 for staining, with an instrumental colour difference held to a delta E of 2.0 or less against the approved standard. Shifting beyond delta E 3.0 is visible to most retail buyers on a shelf.

Light fastness matters for window displays and for bags that sit in a car. Fabric is rated on the blue wool scale, and a rating of 4 or better is expected for anything merchandised under direct lighting for more than two weeks. Fluorescent and some bright acid shades on nylon struggle here, which is a specification conversation rather than a production defect.

Setting a Colour Tolerance That Both Sides Can Hold

Logo method drives the fastness profile as much as the ink does. Screen-printed plastisol deposits a 120 to 160 mesh film that sits proud and is prone to wet crocking; heat transfer applies at 150 to 160 degrees for 12 to 15 seconds at roughly 0.35 MPa and gives cleaner edges; silicone patches are vulcanised at 160 to 180 degrees and hold up best against abrasion and washing; embroidery at a 0.4 mm stitch length avoids dye entirely, since the thread is solution-dyed.

Property	Method	Typical acceptance
Dry and wet rubbing	AATCC 8, AATCC 165	Grey scale 4 dry, 4 wet
Wash fastness	ISO 6330, 5 cycles at 40 degrees	Shade change 4, staining 4
Shade match	Instrumental, D65, 10 degree observer	Delta E 2.0 maximum
Light fastness	Blue wool scale	Rating 4 for display goods
Abrasion of print	ISO 12947	No film loss at 10,000 rubs
Restricted substances	REACH, CPSIA, Prop 65	Screening per material lot

Colour is approved as a physical standard, not a number on a screen: a signed lab dip plus a retained production shade band, checked under D65 lighting, is what settles disputes later. Pigments and inks also have to clear restricted substance rules including REACH (EC 1907/2006), CPSIA and California Prop 65, and OEKO-TEX Standard 100 certification is often requested by European retail accounts. Our production team submits lab dips within the 6 to 10 working day sampling window and keeps the approved standards for 12 months. Documentation sits within custom bag quality certification.

Frequently Asked Questions (FAQs)

What grey scale rating should a screen-printed logo hold after rubbing?

A screen-printed logo should read 4 to 5 dry and 4 wet on the grey scale for staining under AATCC 8. Pigment prints on coated shells often drop one grade wet, so the wet result is the one written into the specification.

How many wash cycles should a printed panel survive before approval?

Five cycles at 40 degrees to ISO 6330 with reference detergent is standard, with shade change no worse than grey scale 4 and staining at 4. Instrumental colour difference should stay within delta E 2.0 of the approved standard.

Why does sublimation outperform screen print on colour fastness tests?

Sublimation dyes the fibre itself rather than sitting as a surface film, so it scores 4 to 5 on both dry and wet crocking. It only works on polyester above roughly 65% content, which limits where it can be used.

What colour tolerance is realistic across two different fabric dye lots?

Delta E of 2.0 or less under D65 lighting is achievable and is the usual commercial tolerance. Anything above delta E 3.0 is visible side by side on a shelf, so lots outside the band are reworked or re-dyed.

Which test catches dye migrating from a dark shell onto light webbing?

Staining is read on the multifibre strip in the ISO 6330 wash test, and separately by a heated contact test where shell and webbing are pressed together. Grey scale 4 on the adjacent fibre is the standard acceptance. Dark navy and black shells against light webbing migrate worst, so those combinations are tested first.

How does OEKO-TEX Standard 100 change dye selection for a bag fabric?

The standard sets limits on arylamines, formaldehyde, heavy metals and pesticides in the finished textile, which rules out certain azo and chrome dyes. Suppliers must present a valid certificate covering the exact article class. Class II covers articles with direct skin contact, which is the class most shells and linings are certified against.

What light fastness rating should retail bag fabric carry for window display?

A blue wool rating of 4 or better is expected for anything displayed under direct lighting for more than two weeks. Bright fluorescent shades on nylon frequently reach only 3 and should be avoided in such programmes. Displays in direct sun beyond two weeks should specify rating 5 or rotate stock every 10 days.

Which restricted substance rules apply to pigment inks used on bag logos?

Pigment inks are screened against REACH (EC 1907/2006) SVHC limits, CPSIA lead and phthalate limits for childrens articles, and California Prop 65. Heavy-metal pigment lines are normally excluded from the approved ink list. A declaration is requested per ink lot, and the printed panel is screened rather than the raw ink alone.

Related Guides

Internal resources

• Request a quote (RFQ)
• Download RFQ template
• Download QC checklist

Related blog posts

• ODM vs. OEM for Startups: Budget & Timeline Comparison
• ODM Bag Design Trends for 2026–2027
• ODM Bag Catalogs: How to Customize Ready Designs Effectively
• Needle Detector & Safety Testing for Export Bags
• OEM Bag MOQs Explained: How to Negotiate Minimum Orders
• OEM Bag Manufacturing for Promotional & Corporate Brands

Next step

• Confirm target market & positioning for Custom Bag
• Lock keyword and claim scope for custom custom bag oem
• Build a tech pack with BOM + tolerance map
• Choose materials route and validate tests (by spec)
• Plan sampling gates (lead time 6-10 working days)
• Set MOQ and cost targets (MOQ 500 pcs)
• Define QC plan and AQL checkpoints
• Confirm production + shipping timeline (35-50 days)