Start With Procurement Risk, Not the Product Name
A canvas wine carrier sounds simple until a filled bottle, sponsor logo, and fixed event date are involved. For nonprofit campaigns, the bag may serve as a donor gift, auction pickup carrier, winery partner bundle, retail-table item, or chapter fundraising product. It has to look presentable, carry glass safely, protect the printed artwork, and arrive in the right cartons for the right people. If the RFQ only says “canvas wine carrier with logo,” every supplier will make different assumptions.
That is where many quote comparisons go wrong. One factory may price a light cotton bottle sleeve with a basic print. Another may include 12 oz canvas, sewn dividers, reinforced handles, a stronger base, and export cartons. Both quotes may sit in the same spreadsheet row, but they are not quoting the same article. The lower price may simply be a lighter product with missing controls.
A stronger B2B RFQ makes the important assumptions visible before price negotiation starts. It names the bottle profile, fabric weight, construction, print method, packing plan, sample route, tolerances, and inspection points. It also tells suppliers what to itemize separately, including screens, woven labels, hangtags, barcode labels, sample courier, carton labels, and special packing. Nonprofit teams often approve budgets before final artwork and chapter allocations are locked, so late charges can create avoidable friction.
The RFQ does not need to become a technical manual. It just needs to be precise where imprecision creates cost, delay, or quality risk. Procurement can then compare suppliers on the same baseline and make conscious choices: stronger handles versus lower cost, natural canvas versus dyed fabric, flat packing versus shaped packing, one master logo versus chapter versions.
- Define the carrier by bottle type, bottle count, loaded weight, campaign use, and distribution route.
- Ask each supplier to confirm fabric weight, construction, decoration, packing, and tolerance assumptions in writing.
- Separate the technical specification from commercial terms so a low quote cannot hide weaker reinforcement or lighter canvas.
- Use the same drawing, measurement sheet, artwork pack, or physical reference sample for every supplier.
- Require suppliers to list exclusions, optional charges, and substitutions clearly in the quote.
Define Bottle Format Before Bag Dimensions
The bottle is the load, so start there. A 750 ml Bordeaux bottle, Burgundy bottle, champagne bottle, and spirits bottle do not behave the same inside a carrier. Champagne and sparkling bottles are often wider and heavier. Burgundy bottles have sloped shoulders and may need more divider clearance. Some spirits bottles have square or irregular bases that will not slide into divider cells designed around wine. If the campaign may include mixed bottles, the largest approved bottle should drive the design.
Include the maximum bottle diameter, total height, and approximate filled weight in the RFQ. If the neck should remain visible, say so. If labels must face outward for a donor presentation or retail display, say that too. These details influence body height, divider height, cell width, gusset depth, handle drop, and print placement. A carrier that works beautifully for slim Bordeaux bottles can become frustrating when a winery partner swaps in a wider sparkling bottle.
Capacity changes the risk profile. A single-bottle bag is mostly about presentation and basic carrying comfort. A 2-bottle wine carrier needs divider stability and balance. A 4-bottle or 6-bottle canvas carrier places much more load on handle joints, bottom seams, divider attachments, and carton packing. For those larger formats, the RFQ should ask the supplier how the design reduces bottle movement and bottom sag.
Do not rely on “standard wine bag” unless the standard is attached as dimensions or a sample. In procurement language, standard can mean whatever the supplier commonly sells. That may not match your donor set, winery partner bottle, or event presentation needs.
- State the bottle type: 750 ml Bordeaux, Burgundy, champagne/sparkling, spirits, or mixed assortment.
- Provide maximum bottle diameter, total height, filled weight, and expected label orientation.
- For 2-bottle carriers, specify divider height, divider attachment points, and whether both labels face outward.
- For 4/6-bottle carriers, specify total loaded weight, base reinforcement, handle width, and divider cell count.
- List any campaign inserts, such as tasting cards, certificates, brochures, corkscrews, food items, or hangtags.
Lock Measurements and Tolerances Early
A reference photo helps with style, but it is not a specification. Finished measurements determine bottle fit, material consumption, cutting yield, carton size, print position, and the final look on a donor table. The RFQ should list width, height, gusset or depth, handle drop, handle width, divider height, divider cell width, bottom panel size, and front print area. For multi-bottle carriers, a basic line drawing is often more useful than a polished product photo because it shows the base, dividers, and side construction.
Tolerances should be agreed before the purchase order, not debated during final inspection. Cotton canvas is cut and sewn, so small variation is normal. For many single and 2-bottle carriers, +/-0.5 cm is a practical finished dimension target. Larger 4-bottle and 6-bottle carriers may need a more realistic tolerance of +/-1.0 cm. Divider cells may need tighter control if the bottle fit is close. Print placement should be controlled separately, usually in millimeters from a seam, centerline, or approved artwork guide.
Measurement method matters. A soft canvas carrier can measure one way when flat and another way when shaped or loaded. If the bag needs to stand upright for a gala table, auction pickup line, winery counter, or retail shelf, approve the loaded appearance, not just the flat dimensions. Ask the factory to confirm how they will measure during production and inspection.
A clean measurement sheet also helps when several internal stakeholders are involved. Development, procurement, brand, event teams, and fulfillment partners can all refer to the same document instead of interpreting a sample differently.
- Include W x H x D/gusset, handle drop, handle width, divider height, divider cell width, and bottom panel size.
- Define separate tolerances for body dimensions, divider cells, handle drop, print placement, and label placement.
- State whether measurements are taken flat, shaped, or loaded with the approved bottle profile.
- Ask suppliers to confirm whether shrinkage, seam allowance, or canvas thickness affects finished size.
- Attach the approved measurement sheet to the purchase order and final inspection standard.
Specify Canvas Weight, Composition, and Finish
Fabric weight is one of the biggest cost and quality levers. Many promotional cotton bags are made from 6 oz to 8 oz fabric, but that range is usually soft for repeated loaded wine carrier use. It may work for a light, single-use presentation sleeve, especially when the bottle is handed over at an event and carried a short distance. For most nonprofit canvas wine carriers, a better starting point is 10 oz to 12 oz cotton canvas, roughly 280 to 340 GSM.
That range gives the bag more body and a more substantial feel without automatically pushing the project into a heavy premium build. A 10 oz canvas can suit many single-bottle and 2-bottle campaigns. A 12 oz canvas often makes sense for stronger presentation, retail settings, and repeated handling. A 14 oz canvas can feel premium, but it is not always the best answer. It increases fabric cost, sewing difficulty, carton weight, freight cost, and sometimes makes fine screen printing less sharp if the weave is coarse.
For 4-bottle and 6-bottle carriers, construction often matters more than simply adding GSM. A good base panel, secure dividers, strong handle reinforcement, and proper seam execution will usually do more for loaded performance than fabric weight alone. Ask the supplier to explain the relationship between GSM, base reinforcement, and handle construction in the quote.
Use both ounces and GSM in the RFQ because suppliers may work with different conventions. Also define the composition and finish: natural cotton canvas, dyed cotton canvas, recycled cotton blend, organic cotton, polyester-cotton blend, or another approved material. Natural canvas can show seed flecks, slubs, and shade variation. Dyed canvas may need lab dip approval and higher MOQ. Recycled cotton blends may vary in texture or strength, so swatch approval and loaded sample testing are especially important.
- Use 10 oz, about 280 GSM, for many single or 2-bottle campaigns with moderate reuse expectations.
- Use 12 oz, about 320-340 GSM, for stronger presentation, retail programs, and repeated handling.
- Use 14 oz only when the campaign accepts higher cost, heavier cartons, and possible print texture tradeoffs.
- For dyed canvas, require lab dip or swatch approval and ask whether shade lot MOQ applies.
- For sustainability claims, specify recycled content, certification needs, no-polybag rules, and documentation requirements.
Engineer Handles, Dividers, Base, and Seams
Most failures do not show up in a front-facing product photo. They happen at handle joints, side seams, bottom corners, divider attachments, and gusset transitions. A nonprofit team may only see a neat sample on a desk, but the real test comes when volunteers lift loaded carriers, donors walk to parking, or cartons are unpacked quickly before an event. The RFQ should describe the hidden construction, not just the outside look.
Handle details deserve exact language. Specify cotton webbing, self-fabric canvas, or another material. State the handle width, handle drop, thread color, stitch pattern, and reinforcement location. Cotton webbing often gives consistent strength and a comfortable hand. Self-fabric handles can look more integrated, but they need enough width, folding, and stitching to handle the load. Box-X stitching, bartacks, or reinforced multi-row stitching should be named at stress points instead of left to interpretation.
Dividers are functional parts. They reduce bottle-to-bottle impact, improve balance, and help the carrier feel intentional rather than improvised. For multi-bottle canvas wine carriers, divider height should limit contact without making bottles hard to insert. Edges should be folded, bound, or otherwise finished so they do not fray or scrape labels. Attachment points should be secure enough that dividers do not twist when one bottle is removed before the others.
The base is just as important. A weak bottom can sag, pull the front panel out of shape, distort the logo, and push extra stress into handle seams. For 4-bottle and 6-bottle formats, request a double-layer base, sewn-in support panel, or another approved reinforcement. Ask whether that reinforcement is included in the unit price and confirm it in the sample.
- Specify handle material as cotton webbing, self-fabric canvas, or another named material.
- State handle width, handle drop, stitch pattern, thread color, and reinforcement location.
- Require box-X, bartack, or approved reinforced stitching at handle attachment points.
- Define dividers as fixed or removable, finished edge or bound edge, and single-layer or double-layer.
- Specify base reinforcement for multi-bottle carriers and inspect loaded sag during sample approval.
- Reject skipped stitches, broken thread, needle cuts, raw fraying edges, and uneven seam allowance at inspection.
Control Artwork, Sponsor Marks, and Print Limits
Nonprofit campaigns often carry more than one mark: the organization logo, campaign name, winery partner, presenting sponsor, chapter name, donor tier, or event date. That makes decoration more than a cosmetic choice. Every extra color, logo version, and placement can affect setup cost, print registration, production sorting, and final packing accuracy.
Screen printing is usually the practical option for bold 1-color to 3-color graphics on canvas. It works well for strong logos, campaign slogans, and simple sponsor marks. The limitation is the fabric surface. Textured canvas can soften edges, and very small sponsor names, thin rules, reversed text, or delicate serif fonts may fill in. If sponsor readability matters, the RFQ should set minimum text size, minimum line weight, artwork size, and placement tolerance.
Heat transfer can help when the artwork includes gradients, tight details, or many colors, but it changes the surface feel. It also needs adhesion checks, rub checks, and flexing checks on the selected canvas. Embroidery can work nicely for small premium branding, patches, or side labels, but large embroidery on canvas may pucker the panel, especially when bottles push against it. Woven labels are useful when the front panel should stay clean or when multiple sponsor versions would make direct printing inefficient.
Provide vector artwork, Pantone targets, print dimensions, print position from seams, color count, and a named artwork version for every SKU. Approve the print on the actual approved fabric when possible. Natural canvas shade variation can shift perceived ink color, so the strike-off should become the color standard, not a verbal description like “deep green” or “warm red.”
- Use screen print for bold logos, solid colors, campaign slogans, and most cost-sensitive production runs.
- Use heat transfer only after checking edge adhesion, rub resistance, flexing, and handfeel on canvas.
- Use embroidery for small premium branding, not large front graphics that may pucker around bottles.
- Request vector files, Pantone targets, artwork version names, print size, and placement from seams.
- Define print defects: bleeding, pinholes, ghosting, cracking, smudging, poor opacity, and unacceptable color shift.
- Approve one construction sample plus separate strike-offs when chapter or sponsor artwork changes by version.
Make MOQ and Price Breaks Transparent
MOQ is rarely one clean number. It can change by bag size, fabric color, GSM, bottle capacity, print design, print color count, woven label, hangtag, barcode label, and packing method. A stock natural canvas single-bottle carrier with one-color printing may support a lower MOQ than a dyed 6-bottle carrier with fixed dividers, woven side labels, hangtags, and chapter-specific carton marks.
This is especially important for nonprofit programs with regional chapters or sponsor tiers. A total order of 5,000 units may look efficient until it becomes ten artwork versions of 500 units each. Each version may need separate screens, packing segregation, carton labels, and inspection checks. If the supplier quoted one large print run, the final price can change once artwork splits are revealed.
Ask for price breaks by SKU and by total program volume. Common comparison points are 500, 1,000, 2,500, and 5,000 units, but use volumes that match the real campaign. Also ask how pricing changes if the same body is produced in one batch while the logo or carton mark changes by chapter. This gives procurement options: consolidate the body, reduce artwork versions, simplify labels, or accept the cost of customization where it matters.
Itemized charges make decisions easier. Screens, plates, woven labels, hangtags, barcode labels, sample courier, special cartons, and relabeling should not be hidden inside a vague unit price. The clearer the quote, the easier it is to explain the budget internally.
- Request MOQ by bag size, fabric color, print design, logo version, label type, and packing method.
- Ask for price breaks at 500, 1,000, 2,500, and 5,000 units or the campaign’s realistic volumes.
- Separate screens, plates, woven labels, samples, courier, hangtags, barcode labels, and carton labels from unit price.
- Ask whether combining body production while changing print versions reduces cost or MOQ.
- Require suppliers to identify the cost impact of heavier canvas, dyed fabric, fixed dividers, and special packing.
Build a Sample Approval Route That Proves Function
A sample should prove more than appearance. Start with a fabric swatch when GSM, recycled content, canvas shade, or dyed color matters. For dyed canvas, request a lab dip or shade swatch before bulk fabric is produced. Then approve a print strike-off on the approved fabric, or the closest available production fabric, so the nonprofit and sponsors can check color, opacity, line clarity, texture interaction, and handfeel.
The pre-production sample should be made with the quoted fabric, handle construction, dividers, labels, and packing method. It should not be a generic showroom sample unless that is clearly stated. Load it with the approved bottle type or equivalent weight. Lift it several times. Set it on a table. Insert and remove the bottles. Check handle comfort, divider fit, label clearance, balance, and bottom sag. Look at the logo after the bag is filled, because the print panel may shift when the canvas takes the weight.
Packing should also be sampled when the front print is large, the fabric creases easily, cartons will be stored for a while, or event teams will unpack quickly. Over-compression can leave fold marks. Individual polybags can protect against dust but may conflict with sustainability policies. Paper bands or no individual packing can feel more aligned with a nonprofit message, but they need realistic handling expectations.
For multi-version campaigns, a full physical construction sample for every artwork version is not always necessary if the body is identical. One approved master construction sample plus separate print strike-offs or artwork approvals may be enough. The key is production control: the supplier must show how versions will be separated during printing, sewing, packing, and shipment.
- Approve fabric swatch before confirming GSM, color, texture, and sustainability claims.
- Approve print strike-off before sponsor signoff, especially for Pantone colors and small text.
- Approve pre-production sample before bulk cutting, bulk printing, or full sewing starts.
- Test with actual filled bottles or equivalent weight, not an empty sample.
- Approve final packing sample if print creasing, carton marks, barcodes, or polybag rules matter.
- Keep signed samples or written approval records as the final inspection reference.
Plan Packing, Cartons, and Chapter Distribution
Packing affects freight cost, damage risk, warehouse efficiency, and the campaign’s sustainability story. Flat packing usually lowers CBM, which can reduce freight cost, but aggressive folding may crease printed panels. Shaped packing protects structure better and can help carriers look better out of the carton, but it increases volume. Individual polybags reduce dust and moisture exposure, while paper bands, kraft sleeves, or no individual packing may better fit a plastic-reduction policy.
Nonprofit distribution is often less simple than one shipment to one warehouse. A national campaign may need cartons separated by chapter, city, event date, donor tier, winery partner, or artwork version. A fulfillment center may require PO numbers, barcode labels, inner cartons, pallet labels, or carton-level SKU identification. If these instructions arrive after production, the supplier may need to reopen cartons, relabel goods, or manually separate versions. That costs time and increases error risk.
The RFQ should ask for units per carton, carton dimensions, gross weight, net weight, CBM, carton marks, barcode requirements, mixed-SKU rules, and pallet requirements if applicable. For campaigns with multiple logos, a simple rule such as “no mixed cartons unless approved in writing” can prevent receiving mistakes. If mixed cartons are necessary, require a clear packing list and visible carton label that shows every SKU inside.
Do not treat packing as an afterthought. The best carrier still creates a problem if it arrives creased, mislabeled, mixed by chapter, or packed in a way the event team cannot manage.
- Request carton size, units per carton, gross weight, net weight, and CBM for every packing option.
- State whether bags are flat packed, folded, shaped, nested, or packed with dividers inserted.
- Define individual packing: none, polybag, paper band, kraft sleeve, retail hangtag, or SKU label.
- Provide carton mark requirements including chapter name, event code, PO number, SKU, artwork version, and destination.
- State whether mixed cartons are allowed and how mixed cartons must be labeled if approved.
- Include pallet, barcode, and fulfillment-house instructions before final quote whenever possible.
Set QC Standards Before the Purchase Order
Quality control should be part of the RFQ, not a surprise added after production begins. Suppliers need to know the inspection target before they cut fabric, print panels, and sew dividers. The buyer should define checkpoints for fabric weight, finished dimensions, bottle fit, handle strength, divider construction, base sag, print quality, label accuracy, packing, and carton marks.
The approved sample should become the visual and functional standard. Inspectors should measure body dimensions, divider cells, handle drop, and print placement. They should test with the largest approved bottle profile or equivalent weight, not only a slim bottle that happens to fit. Loaded checks should cover balance, handle strain, bottom sag, divider stability, bottle insertion, and bottle removal. A bag that looks acceptable empty may fail once it carries real weight.
Multi-version campaigns need an artwork-verification step. Wrong sponsor marks, mixed chapter logos, incorrect barcode labels, or inaccurate carton marks can be more damaging than minor sewing defects. Ask the supplier how SKUs will be segregated during printing, sewing, trimming, packing, and shipment. If third-party inspection is planned, state whether the factory must support in-line inspection, final random inspection, or both.
Tolerance language keeps disputes practical. Fabric weight may be accepted within +/-5 percent if agreed. Finished measurements may use +/-0.5 cm for small carriers and +/-1.0 cm for larger formats, unless the design requires tighter fit. Print placement should use a stated millimeter tolerance from a defined reference point. Brand color should be checked against the approved strike-off under consistent lighting, with natural canvas variation noted in the approval record.
- Attach the approved spec, measurement sheet, artwork files, sample approvals, and packing rules to the purchase order.
- Define measurement tolerances, print placement tolerances, fabric weight tolerance, and carton quantity tolerance.
- Require loaded functional checks for handle strain, bottom sag, balance, divider fit, and bottle insertion.
- Check all logo versions, sponsor marks, chapter labels, barcodes, hangtags, and carton marks against the packing list.
- Include odor, moisture, mold, stains, fabric defects, and carton damage in the final inspection checklist.
- Ask the supplier how they will segregate SKUs during printing, sewing, packing, and shipment.
Specification comparison for buyers
| Spec decision | Recommended option | When it fits | Buyer risk to check |
|---|---|---|---|
| Fabric weight and canvas grade | 10 oz to 12 oz cotton canvas, about 280-340 GSM, with swatch approval; consider 14 oz only for premium or heavy-duty programs | Most nonprofit donor gifts, winery partner packs, retail tables, auction pickup bags, and repeated-use campaigns | 6-8 oz canvas may sag with filled bottles; heavy canvas increases sewing cost, carton weight, CBM, and can reduce print sharpness on coarse weave |
| Bottle profile and capacity | Specify exact bottle type: 750 ml Bordeaux, Burgundy, champagne/sparkling, spirits, or mixed assortment; quote by 1, 2, 4, or 6 bottle formats | Prevents divider, gusset, handle drop, and balance assumptions that make quotes incomparable | Champagne and Burgundy bottles can be wider than standard Bordeaux; too-small divider cells cause insertion problems and label abrasion |
| Finished dimensions and tolerances | Provide finished W x H x D/gusset, handle drop, divider height, cell width, and base size; common tolerance target is +/-0.5 cm to +/-1.0 cm by style | Useful when multiple suppliers are quoting the same drawing or sample | Reference photos without measurements lead to different bag depths, shorter handles, lower dividers, and hidden changes in material consumption |
| Handle construction | Cotton webbing or self-fabric handles, typically 2.5-3.8 cm wide, secured with box-X stitch, bartack, or reinforced multi-row stitching | Needed for loaded handling at events, donor pickup, winery counters, and warehouse receiving | Decorative handles, short stitch boxes, weak thread, or no reinforcement can fail under repeated lifting even if the empty sample looks acceptable |
| Divider and base structure | Fixed sewn dividers with finished edges plus double-layer base or reinforced bottom panel for multi-bottle carriers | Important for 2, 4, and 6 bottle bags where bottles must not collide during transport | Low dividers allow bottle shoulder contact; unsupported bottoms sag, distort print panels, and shift stress to handle seams |
| Decoration method | Screen print for bold 1-3 color logos; heat transfer for gradients or fine sponsor art; woven label or embroidery for small premium branding | Most nonprofit canvas wine carriers use screen print when artwork is clean and color count is limited | Fine sponsor text can fill in on textured canvas; require artwork size, Pantone target, minimum line weight, and placement tolerance |
| MOQ structure | Quote MOQ by bag size, fabric color, print design, logo version, label, and packing method | Critical for chapter campaigns, sponsor tiers, regional artwork, and staggered event drops | A low total MOQ can hide per-screen, per-color, dyed fabric, label, relabeling, or small-batch cutting charges |
| Packing and labeling | Flat pack in export cartons unless structure protection is required; define polybag, paper band, barcode, carton mark, and mixed-SKU rules | Controls freight cost, warehouse sorting, and event-team usability | Over-compression can crease prints; individual plastic can conflict with sustainability policy; mixed cartons create receiving errors |
| Sample approval route | Approve fabric swatch, print strike-off, pre-production loaded sample, and packing sample before bulk production | Recommended whenever sponsor marks, donor tiers, barcodes, or event dates are involved | Photo approvals do not prove GSM, handle strength, divider fit, odor, print handfeel, or carton condition |
Buyer checklist before sampling
- Define the bottle profile before RFQ: 750 ml Bordeaux, Burgundy, champagne/sparkling, spirits, or mixed bottles; include maximum bottle diameter, height, and approximate filled weight.
- State the campaign use case: gala donor gift, auction lot, winery retail bundle, chapter event sale, sponsor thank-you pack, tasting-room pickup, or fulfillment shipment.
- Specify bottle capacity and construction: 1-bottle, 2-bottle, 4-bottle, or 6-bottle carrier; fixed dividers, removable dividers, no dividers, reinforced base, or retail hangtag.
- Provide finished dimensions with tolerances: width, height, gusset/depth, handle drop, handle width, divider height, divider cell width, bottom panel, and front print area.
- State fabric target in oz and GSM, composition, color, weave, shrinkage expectations, and whether natural cotton, dyed cotton, recycled cotton blend, organic cotton, or blended canvas is acceptable.
- Confirm construction requirements: seam allowance, seam finish, thread color, stitch type, bartack or box-X reinforcement, bottom reinforcement, divider edge finish, and label placement.
- List all branding: nonprofit logo, sponsor marks, campaign text, print positions, print size, Pantone targets, minimum text size, woven labels, hangtags, disclaimers, and barcode labels.
- Separate quantities by SKU, capacity, fabric color, print design, chapter logo, donor tier, destination, and packing type so suppliers quote actual setup and control costs.
- Request price breaks at realistic volumes such as 500, 1,000, 2,500, and 5,000 units, plus MOQ changes by color, artwork version, and custom packing.
- Require sample stages: fabric swatch, lab dip if dyed, print strike-off, pre-production sample, loaded bottle test sample, and final packing confirmation sample.
Factory quote questions to send
- What fabric weight are you quoting in both oz and GSM, and what is the fiber composition: cotton, recycled cotton blend, organic cotton, polyester-cotton, or another material?
- Is the quoted fabric stock natural canvas, stock dyed canvas, dyed-to-order fabric, or custom woven fabric, and what MOQ or shade approval applies?
- What is the MOQ per bag size, fabric color, print design, print color count, logo version, woven label, hangtag, and packing method?
- What bottle dimensions and filled weight did you use to calculate the finished bag size, gusset, divider cell width, divider height, and handle strength?
- What handle material, width, handle drop, stitch pattern, thread type, and reinforcement method are included at each handle joint?
- How are the dividers constructed: fixed or removable, single-layer or double-layer, finished or raw edge, and stitched to which panels?
- What bottom reinforcement is included, and is the base designed to reduce sag when loaded with the specified bottle count?
- Which decoration method is included in the unit price, and how many colors, print positions, and square centimeters of print coverage are included?
- What are the separate charges for screens, plates, digital setup, woven labels, hangtags, barcode labels, carton labels, samples, courier, and special packing?
- What tolerances do you allow for finished dimensions, fabric weight, fabric shade, print position, print color, stitch density, and carton quantity?
Quality-control points to confirm
- Fabric weight should match the approved swatch within the agreed tolerance; a common purchasing target for cotton canvas is +/-5 percent unless the buyer sets a tighter standard.
- Finished dimensions should match the approved spec: often +/-0.5 cm for single and 2-bottle bags and +/-1.0 cm for larger multi-bottle carriers, unless design requires tighter fit.
- Bottle fit should be tested with the largest approved bottle profile, not only a slim Bordeaux bottle; check insertion, removal, label clearance, and neck position.
- Loaded function should be checked with real filled bottles or equivalent weight for balance, handle comfort, bottom sag, divider stability, and seam strain.
- Handle joints should match the approved reinforcement with no skipped stitches, loose threads, needle cuts, broken stitches, seam slippage, or uneven bartacks.
- Divider cells should be secure, correctly sized, finished at edges, free of sharp thread ends, and high enough to reduce bottle-to-bottle impact.
- Bottom reinforcement should sit flat and support the load without excessive sagging, twisting, or visible distortion of the front print panel.
- Print placement should match the approved sample within the stated millimeter tolerance; check centering after the carrier is filled, not only when flat.
- Print quality should show no major bleeding, ghosting, pinholes, smudging, cracking, heavy handfeel, transfer marks, or unacceptable color shift from the approved strike-off.
- Pantone or brand color should be checked against the approved strike-off under consistent lighting; natural canvas shade variation should be considered in approval notes.