Why Coffee Roasters Need an Inspection Standard, Not Just a Good-Looking Mockup
Cotton drawstring pouches can look deceptively simple in a sourcing request. A buyer sends a logo, asks for a natural cotton bag, receives a unit price, and the project appears straightforward. In practice, the pouch sits at the intersection of textile production, decoration, warehouse handling, food-adjacent cleanliness, and customer-facing brand presentation. One batch may be used for 50 g roasted samples, 100 g retail bags, 250 g coffee bags, drip sachet assortments, tasting cards, cupping accessories, subscription inserts, merchandise, loyalty gifts, or holiday bundles. The same pouch that photographs well on a supplier’s table may fail when it is filled, tied, packed, shipped, and handled by customers.
For B2B procurement teams, the aim is not to make a basic fabric bag unnecessarily complicated. The aim is to remove guesswork before money is committed. “Natural cotton drawstring pouch with logo” is a description, not a production specification. A controlled order should state finished sewn dimensions, tolerance, usable-fit requirement, fabric GSM, fabric color reference, drawcord material, cord diameter, print method, artwork position, seam requirements, odor standard, packing method, sampling plan, and defect classifications. Those details help buyers compare quotes fairly and give the factory a measurable target.
Coffee roasters also have a different risk profile from many promotional buyers. The pouch may sit next to freshly printed coffee bags, paper tasting cards, gift boxes, or subscription materials. A mildew smell, dusty fabric, heavy lint, crooked logo, missing cord, or mixed carton count can delay a product launch or force manual sorting during fulfillment. Even when the coffee itself is sealed in primary packaging, the pouch still affects the customer’s first impression of the product. That is why the inspection checklist belongs in the RFQ and purchase order, not only in a complaint email after delivery.
- Treat the pouch as a packaging component with defined specifications, not as an unspecified promotional giveaway.
- Base the checklist on the real use case: coffee sample, retail gift, subscription insert, accessory kit, merchandise bundle, or event handout.
- Keep one approved physical sample as the standard for fabric hand feel, print position, drawcord behavior, stitching, and packing.
- State non-negotiable rejection issues in advance: mildew, strong odor, holes, missing cords, wrong artwork, open seams, contamination, and incorrect carton counts.
Start With Product Fit: Finished Size, Usable Space, and Closure Headroom
Size problems usually start with the wrong measurement language. A pouch sold as 150 mm x 200 mm does not provide 150 mm x 200 mm of usable internal space. Side seams, seam allowance, top hem depth, the cord channel, fabric thickness, and the gathered drawstring all reduce the room available for the coffee item. If the pouch is tight, staff may have to force each unit into place, corners can strain the seams, the front panel may distort, and the drawstring may sit half-open instead of closing cleanly.
The specification should call out finished sewn size and measurement method. A practical instruction is: “Measure width and height flat and empty after sewing, with the pouch smoothed by hand and not stretched.” For many standard cotton drawstring pouches, ±5 mm on width and height is a workable commercial tolerance. Smaller premium pouches may need ±3 mm if the supplier confirms capability. Larger non-retail bags may allow ±8 mm where presentation is less critical. Whatever tolerance you choose, confirm it before quoting. Tighter tolerance can require more careful cutting, sewing, and sorting.
Fit testing should use the actual product, not an empty bag or artwork file. A filled 250 g coffee bag has thickness, rounded corners, trapped air, and a gusset shape. A drip coffee kit with sachets, a tasting card, and a scoop behaves differently again. Define how much headspace is needed above the product so the drawcord can cinch without bending cards, crushing coffee bags, or pulling the top hem out of shape. If the pouch is used in fulfillment, ask the team that packs the orders to test the sample. A pouch that technically fits but slows packing is still a procurement problem.
- Specify finished sewn size, not cut fabric size or approximate outside size.
- Measure flat, empty, after sewing, and without stretching unless a different method is written into the spec.
- Use realistic tolerances: ±5 mm is common for many standard sizes; use tighter limits only when the supplier confirms they can hold them.
- Test with the filled coffee bag or full kit, including cards, sachets, tins, scoops, and other accessories.
- Confirm closure headroom so the drawcord can cinch above the product without pulling the top channel or stressing seams.
Fabric Specification: GSM, Fiber Content, Shade, Slubs, and Shrinkage
Fabric weight drives cost, hand feel, opacity, sewing behavior, and freight weight. For short-use event giveaways or light promotional inserts, 90-110 GSM cotton may be acceptable if the contents are light and the brand expectation is modest. For most coffee sample programs, retail bundles, subscription inserts, and branded gift pouches, 120-140 GSM is usually a safer working range. It gives the pouch more body and better opacity without making the top channel too bulky. Premium gift sets and heavier accessory kits may use 150-200 GSM cotton or cotton canvas, but heavier fabric can raise cost, increase seam bulk, and make the pouch harder to close smoothly.
GSM is only one part of the fabric specification. Two suppliers can both quote 120 GSM cotton while using different yarn quality, weave density, finishing, color treatment, shrinkage control, and lint level. The RFQ should define fiber content, weave, color, GSM tolerance, and finish: natural, bleached, dyed, washed, or pre-shrunk. If the purchase depends on a material claim such as organic cotton, recycled cotton, or OEKO-TEX certification, ask for valid documentation and include the requirement in the purchase order. Do not rely on a casual phrase in a catalog listing.
Natural cotton needs a realistic visual standard. Unbleached cotton may contain small seed flecks, specks, and mild slubs. For many coffee brands, that texture supports a natural, craft-oriented look. But there is a clear difference between acceptable character and poor fabric quality. Holes, oil marks, water stains, mildew, dirty yarns, heavy slubs, and unexpected shade variation should be classified as defects. For dyed pouches, inspect shade consistency across cartons and consider color transfer risk, especially if the pouch will touch white labels, light insert cards, or kraft gift boxes.
- 90-110 GSM: budget promotional use; inspect opacity, seam strength, print show-through, lint, and overall perceived value.
- 120-140 GSM: practical default for many coffee sample, retail, gift, and subscription pouch programs.
- 150-200 GSM: stronger premium feel for heavier kits; check closure ease, seam bulk, freight weight, and cost impact.
- Ask for GSM tolerance, commonly ±5%, and confirm whether the supplier verifies GSM by fabric lot.
- Approve a physical fabric swatch or sample before cutting, especially for natural cotton shade and dyed brand colors.
Drawcord and Cord Channel: The Small Detail Customers Touch First
The drawcord is easy to overlook during quoting, yet customers touch it immediately. A good cord pulls smoothly, closes evenly, resists fraying, and suits the brand’s packaging style. Cotton cord gives a soft, natural feel. Polyester cord often offers cleaner color consistency and lower fray risk. Cotton-look or blended cords may be a useful compromise when the buyer wants a natural appearance with more controlled color and durability. Whatever the material, the specification should state diameter, braid or twist construction, color, exposed length, pull style, knot style, and end finish.
Cord diameter and channel width have to work together. A thin cord can make a pouch feel cheap and may cut into a lightweight hem. A thick cord can look more premium, but it may jam if the channel is narrow or uneven. A deeper top hem can improve appearance and stability, but it also reduces usable internal height. Ask the supplier to quote the cord and channel as a matched construction, not as separate defaults. The cord should move freely after the pouch is filled, not only when the pouch is empty on the inspection table.
Cord ends deserve a written standard. Common finishes include simple knots, tipped ends, wrapped ends, or heat-sealed polyester ends. Loose lint and excessive fraying are a problem for coffee pouches because fibers can cling to printed coffee bags, tasting cards, and retail displays. During sample approval, fill the pouch with the intended item and open and close it 10-20 times. Watch for uneven pull, twisting, cord slippage, blocked channels, shedding, or knots that are too bulky for the presentation.
- Specify cord material, diameter, color, braid type, exposed length, pull construction, and end finish.
- Confirm whether the pouch uses a single drawcord, double drawcord, one-side pull, or two-side pull construction.
- Reject missing cords, blocked channels, severe fraying, cords that pull out, and uneven cord lengths outside the agreed tolerance.
- Check top hem depth and channel width because they affect both closure function and usable pouch height.
- For premium gift packaging, match the cord color and hand feel to the coffee bag, label, box, and other bundle materials.
Print, Label, and Artwork Control for Coffee Brand Accuracy
Artwork disputes often come from assumptions made too early. A buyer approves a digital mockup. The factory then interprets print size, placement, color, and method in its own way. Cotton is not coated paper. It has texture, absorbency, and shade variation. Fine lines can break, small text can blur, and the same Pantone target may look different on natural cotton, bleached cotton, and dyed fabric. For many one-color or two-color coffee roaster logos, screen printing is a practical choice because it gives solid coverage at a controlled cost. More complex artwork may call for digital print, heat transfer, embroidery, woven labels, or sewn labels, but each method brings different inspection risks.
Artwork control should be measured, not described vaguely. Include the file name or artwork version, print method, print size, maximum print area, logo centerline, distance from top edge, distance from side seams, and acceptable placement tolerance. “Front center” is not enough. A common commercial placement tolerance may be ±3 mm for small premium pouches or ±5 mm for standard pouches, but the supplier needs to confirm that before production. Also state whether artwork can sit near the cord channel, cross a seam, wrap around a gusset, or be partly hidden when the pouch is filled.
Color approval should use a reference that production can actually match. Pantone references help, but the approved printed sample is often the strongest control because it shows ink on the selected cotton. For repeat orders, keep a signed sample from the previous lot and compare the new batch for color, opacity, print hand feel, and placement. If durability matters, add simple inspection checks: rub the print with a dry white cloth, fold over the printed area, lightly scratch the surface, and inspect for smudging, cracking, transfer lift, or edge flaking.
- Use screen print for simple solid logos when repeatability, cost control, and clean placement matter.
- For digital print or heat transfer, inspect edge sharpness, gloss difference, heat marks, hand feel, abrasion resistance, and corner lift.
- Define print placement by measurements from the top edge, side seam, bottom edge, and pouch centerline.
- Confirm minimum line thickness and minimum text height on the actual fabric before bulk production.
- Keep an approved physical print sample for final inspection and future reorders.
Pre-Production Sample Approval: Your Best Chance to Prevent Bulk Problems
A pre-production sample should be treated as the contract reference, not as a courtesy photo. Ideally, it is made with final fabric, final GSM, final drawcord, final sewing construction, final print or label method, and representative packing. Early development samples made from substitute fabric or temporary print can be useful, but they should not release bulk production unless every deviation is written down and accepted by the buyer.
Test the sample exactly as the pouch will be used. Put in the filled coffee bag, drip pack set, tin, scoop, filter pack, tasting card, or full gift kit. Close the drawstring. Open and close it repeatedly. Stack it as it will be packed. Check whether the print still looks centered after filling, whether the top hem twists, whether the product shows through the fabric, whether corners strain the seams, and whether the pouch remains presentable after handling. This step often reveals problems that a flat photo will never show.
Approval records should be specific. Record the approval date, PO number, size, fabric GSM, fabric color, artwork version, print method, cord material and diameter, hem construction, packing format, and any allowed deviations. If natural slubs are acceptable, define the level by the approved sample. If strong odor, print shift, missing cords, or open seams are not acceptable, say so clearly before bulk cutting and printing. The buyer and factory should each keep a labeled approved sample for reference during final inspection.
- Approve at least one physical sample for every critical size, fabric color, and artwork version.
- Do not authorize bulk production based only on a digital mockup or a blank pouch sample.
- Photograph measurements, print position, cord finish, seam construction, label position, and packing method for the approval record.
- If construction or materials change after approval, require a revised sample or written deviation approval.
- Use the approved sample together with written tolerances during pre-shipment and receiving inspection.
Defect Classification and AQL: Decide the Rules Before Shipment Pressure Starts
Inspection becomes much easier when defect categories are agreed before goods are made. Without critical, major, and minor classifications, every defect turns into a negotiation at shipment release. Coffee roasters should classify defects by safety, cleanliness, usability, brand impact, and fulfillment impact. Critical defects make goods unsafe, contaminated, or clearly unsuitable. Major defects can cause customer complaints, retail rejection, rework, or packing delays. Minor defects are small imperfections that do not affect function and remain within the approved visual standard.
Many buyers use ANSI/ASQ Z1.4 or ISO 2859-1 sampling plans for pre-shipment inspection. A common consumer-goods approach is zero tolerance for critical defects, stricter limits for major defects, and a more flexible limit for minor defects. The exact AQL should follow the buyer’s internal policy, order value, and risk level. If the order is too small for a formal AQL plan, still define a written acceptance rule, such as inspecting a fixed percentage of cartons and units with mandatory rejection triggers for mildew, wrong artwork, missing cords, open seams, and wrong counts.
Odor and cleanliness deserve special attention for coffee packaging. Even when the pouch is secondary packaging and does not touch roasted beans directly, it may be stored with coffee bags, paper inserts, retail boxes, and ecommerce packing materials. Strong solvent odor, mildew, fuel-like smell, heavy dust, oil stains, water marks, and excessive lint can make the pouches unsuitable for food-adjacent use. Add these issues to the written defect list instead of handling them informally after delivery.
- Critical defects: mildew, strong chemical or fuel odor, contamination, sharp foreign object, wrong product, severe staining, or unsafe construction.
- Major defects: open seam, missing cord, blocked channel, wrong artwork, wrong size outside tolerance, holes, broken stitch line, severe print shift, or wrong carton count.
- Minor defects: small loose thread, light crease, slight natural slub, or minor placement variation within the agreed tolerance.
- Use AQL if your buying process requires it, or define another written sampling and acceptance rule before shipment.
- Require failed lots to be sorted, reworked, replaced, and reinspected with responsibility clearly assigned.
Sewing, Hem, Seam Strength, and Workmanship Checks
A crooked logo is easy to spot, but many functional failures begin at the seams and top hem. Side seams, bottom seams, gussets, and the cord channel carry stress when the pouch is filled, pulled closed, lifted, and opened again. If stitch density is too low, seams may open. If stitch tension is too high, light cotton can pucker or tear around needle holes. If the top hem is uneven, the cord may catch, twist, or pull harder on one side.
The technical specification should define seam allowance, stitch density, thread color, hem depth, channel width, and any reinforcement such as bartacks. The right stitch density depends on fabric weight and construction, so the approved sample should serve as the practical reference unless the buyer has a formal sewing standard. Inspectors should check for skipped stitches, broken thread, open seam ends, thread nests, puckering, needle damage, uneven folding, and long untrimmed thread tails. A pouch may be strong enough but still look unfinished if loose threads and lint are left on the front panel.
A simple handling check is often more useful than a visual inspection alone. Fill the pouch with the intended coffee item or a weight-equivalent substitute. Close the cord. Lift it, shake it gently, set it down, and open and close it several times. This is not a lab tensile test, but it quickly exposes weak seams, blocked channels, slipping cords, and poor hem construction. If the same issue appears across multiple inspected units, treat it as a systemic production problem rather than a one-off flaw.
- Inspect side seams, bottom seams, gussets, top hem, cord channel, and label attachment separately.
- Reject skipped stitches, open seam ends, broken thread, needle cuts, severe puckering, and untrimmed thread nests.
- Confirm stitch density against the approved sample or written sewing standard.
- Test filled pouches for realistic handling, especially for 250 g coffee bags, tins, filter packs, or accessory kits.
- Require thread trimming and surface cleaning before packing so goods arrive fulfillment-ready.
Packing, Carton Marks, Moisture Control, and Warehouse Receiving
Packing is part of product quality for cotton pouches. Cotton can absorb odor, collect dust, crease, and become misshapen if packed poorly. A pouch that passes sewing inspection can still arrive unusable if cartons collapse, moisture enters during transit, print areas rub against rough surfaces, or mixed SKUs confuse the receiving team. Packing requirements should be agreed before production starts because changing the packing format after goods are finished can add cost and delay.
The best packing format depends on the roaster’s operation. If pouches will be filled in-house, counted bundles in inner polybags or paper bands may be efficient. If they are part of premium retail gift sets, the buyer may need individual bags, barcode labels, interleaving, or cleaner orientation inside the carton. If the brand is reducing plastic, specify acceptable alternatives such as paper bands, recyclable liners, or counted bundles, while still protecting the pouches from dust, moisture, and odor.
Carton marks should make receiving simple. At minimum, labels should show SKU, pouch size, fabric color, artwork version, quantity, PO number, carton number, and gross or net weight if required. Avoid mixed cartons unless the purchase order and packing list clearly authorize the mix. For ocean freight, humid routes, or long storage, ask about inner liners, desiccant, carton strength, warehouse conditions, and whether cartons are kept off damp floors before loading.
- Specify units per inner bundle, inner protection, master carton quantity, carton dimensions if needed, and maximum carton weight.
- Require carton marks with SKU, size, color, artwork version, PO number, quantity, and carton sequence.
- Do not allow mixed sizes, colors, or logo versions unless clearly approved on the PO and packing list.
- Inspect cartons for moisture, crushing, odor, broken tape, inconsistent weights, and incorrect labels.
- Add food-adjacent cleanliness and odor requirements to both product and packing specifications.
RFQ and Supplier Comparison: Control Total Risk, Not Only Unit Price
The lowest unit price is not always the lowest-cost sourcing option. Cotton drawstring pouch quotes can vary because suppliers assume different GSM, fabric grade, cord type, print method, packing format, MOQ rules, setup fees, inspection practices, and delivery terms. Two quotes are comparable only when they describe the same finished product and the same order split. A strong RFQ should include finished size, tolerance, usable-fit requirement, fabric GSM, fabric color, drawcord specification, artwork, decoration method, quantity by version, packing, inspection requirements, lead time, and Incoterms.
Ask suppliers to separate the unit price from one-time and variable charges where possible. Relevant charges may include screen setup, digital setup, label tooling, sample fee, courier fee, special packing, barcode labeling, carton upgrades, desiccant, third-party inspection support, export documentation, and domestic transport. This is especially important for coffee roasters running multiple artwork versions for seasonal blends, subscription tiers, retail partners, events, or holiday sets. A quote that looks attractive for one design may become less competitive once the order is split across several logos.
MOQ should be tied to the real production constraint. Some suppliers set MOQ by total pieces. Others set it by fabric color, dye lot, pouch size, print design, label version, or packing format. Reorder flexibility may matter more than a small unit-price saving if your roastery changes artwork frequently or tests limited-release products. Also clarify overage and shortage tolerance. Textile production often has some variation, but procurement should state whether extra units may be shipped or invoiced without written approval.
- Compare total landed cost and operational risk, not only ex-factory piece price.
- Make every supplier quote the same size, GSM, cord, print method, artwork split, packing format, and inspection standard.
- Clarify MOQ by pouch size, fabric color, logo version, label version, and packing format.
- Ask which processes are done in-house and which are subcontracted, especially printing, dyeing, and sewing.
- Define responsibility for sorting, rework, replacement, and reinspection if the goods fail the agreed checklist.
Specification comparison for buyers
| Spec decision | Recommended option | When it fits | Buyer risk to check |
|---|---|---|---|
| Finished size tolerance | ±3 mm for small pouches under 150 mm; ±5 mm for common coffee pouch sizes; ±8 mm only for large non-retail bags | Useful for quote comparison, receiving inspection, and avoiding disputes over flat measurements | Tolerance must apply to finished sewn pouch measured flat and empty, not cut fabric before sewing |
| Usable fit rule | Test with the real filled coffee bag, sample sachet, tin, scoop, card, or full gift kit | Best for 50 g samples, 100 g bags, 250 g bags, brew kits, and subscription inserts | Outside dimensions can pass while internal fit fails because seams, hem, cord channel, and fabric bulk reduce usable space |
| Fabric weight | 120-140 GSM plain-weave cotton as a practical default | Most coffee sample programs, retail bundles, subscription inserts, and branded gift pouches | Ask for actual GSM tolerance, commonly ±5%, and confirm whether the fabric is stock, custom woven, or substituted |
| Lightweight fabric | 90-110 GSM cotton | Low-cost event giveaways, light sample cards, and short-use promotional packaging | Check opacity, logo show-through, seam strength, lint, and whether the pouch looks too thin next to premium coffee packaging |
| Premium fabric | 150-200 GSM cotton or cotton canvas | Gift sets, merchandise kits, heavier accessories, or premium retail presentation | Heavier fabric increases seam bulk, freight weight, cost, and may make the drawcord channel harder to close |
| Drawcord | Cotton cord, cotton-look braided cord, or polyester cord specified by diameter | Cotton for natural hand feel; polyester for cleaner color consistency and lower fray risk | Define diameter, exposed length, knot style, color, and pull test; do not accept an unspecified default cord |
| Cord channel | Double-fold top hem with channel width suited to cord diameter | Repeat handling, retail presentation, and pouches opened by customers | Channel too narrow causes jamming; uneven stitching causes twisting; top hem height reduces usable internal space |
| Print method | Screen print for one to two solid spot-color logos | Most coffee roaster logos, repeat orders, and controlled brand placement | Confirm ink cure, rub resistance, print hand feel, Pantone target, and placement tolerance from top edge and side seams |
| Complex decoration | Digital print, heat transfer, woven label, or sewn label after sample approval | Multi-color illustrations, seasonal art, small-batch branding, or premium label detail | Check edge lift, gloss difference, wash/rub durability, needle damage around label, and MOQ by artwork version |
Buyer checklist before sampling
- Define the exact pouch use case: 50 g sample, 100 g bag, 250 g coffee bag, drip bag set, cupping spoon, filter pack, tasting card, retail gift bundle, subscription insert, or event giveaway.
- Specify finished sewn size, measurement method, and tolerance. Example: width and height measured flat and empty after sewing, tolerance ±5 mm unless otherwise approved.
- Confirm usable internal fit with the real filled product, not only an empty coffee bag or CAD dimension. Include required headspace above the product for drawstring closure.
- Define fabric fiber content, weave, GSM, GSM tolerance, color treatment, shrinkage expectation, approved slub level, lint standard, and whether fabric is natural, bleached, dyed, washed, or pre-shrunk.
- Ask whether the quoted fabric is stock fabric, made-to-order fabric, dyed-to-order fabric, or subject to substitution. Require written approval before fabric substitution.
- Set drawcord material, diameter, construction, color, exposed length, knot or tip finish, closure smoothness, and pull balance on both sides.
- Define top hem depth, cord channel width, seam allowance, stitch density, thread color, bartack or reinforcement needs, and loose-thread trimming standard.
- Lock artwork file, print method, print size, print position, Pantone or physical color reference, line thickness limits, and acceptable placement tolerance before sampling.
- Require a sewn pre-production sample made with final fabric, final drawcord, final print or label method, final sewing construction, and representative packing wherever possible.
- Document sample approval with date, PO number, artwork version, fabric GSM, size, tolerance, print position, cord details, and any approved deviations.
Factory quote questions to send
- What exact finished sewn size are you quoting, and is it measured flat, empty, after sewing, and before or after pressing?
- What dimensional tolerance is included in your quote for width, height, bottom gusset if any, top hem, and cord channel width?
- What fabric GSM, fiber content, weave, yarn style, color treatment, and GSM tolerance are included in the price?
- Is the quoted fabric stock, custom woven, dyed-to-order, pre-shrunk, washed, or subject to substitution based on mill availability?
- Can you provide a fabric swatch or lab-dip for approval before bulk cutting, and will bulk fabric be cut from the approved lot?
- What drawcord material, diameter, braid construction, color, exposed length, knot style, and cord-end finish are included?
- What is the cord channel construction: single-fold, double-fold, stitched hem, or separate casing, and what channel width will you maintain?
- How many print colors are included, what print method will be used, what is the maximum print area, and are screen, plate, setup, or artwork charges separate?
- What color reference will production follow: Pantone TCX, Pantone C/U, physical swatch, approved printed sample, or existing packaging reference?
- What print placement tolerance do you allow from top edge, side seam, bottom edge, and pouch centerline?
Quality-control points to confirm
- Finished pouch dimensions should match the approved specification within the agreed tolerance, measured flat and empty after sewing. Record width, height, hem depth, and gusset if applicable.
- Usable internal fit must be confirmed with the intended filled coffee bag, sample pack, tin, insert card, filter set, scoop, or gift kit, not only outside measurements.
- Fabric GSM should be checked against the agreed tolerance, commonly ±5% unless otherwise specified, and should be consistent across inspected cartons.
- Fabric should be free from holes, cuts, excessive slubs beyond the approved reference, oil marks, water stains, mildew, heavy dust, and unexpected shade variation.
- Natural cotton shade should be compared against the approved physical sample under consistent light; dyed fabric should be checked for shade banding and color transfer risk.
- Drawcord length, material, diameter, color, and closure action should match the approved sample so the pouch closes smoothly without twisting, snagging, or uneven pull.
- Cord ends should be tied, tipped, heat-sealed, or otherwise finished according to the approved sample, with no excessive fraying, lint shedding, or loose yarns.
- Side seams, bottom seams, and gusset seams should be straight, secure, and free from skipped stitches, open seams, broken thread, puckering, needle damage, or loose seam ends.
- Top hem and cord channel should be even and wide enough for the cord to move freely after repeated opening and closing with the intended product inside.
- Stitch density should match the approved construction standard or written spec. Sparse stitching can cause seam failure; overly tight stitching can distort light cotton.