Practical sourcing guide for glass bottle plant gloves, covering hot end contact heat, cold end cut risk, palm coatings, EN 407 and EN 388 claims, MOQ, sampling, inspection and what a Yiwu glove factory can and cannot make.
One Plant Usually Needs Two Different Glove Families
A glass bottle plant should not buy one glove and push it across the whole line. The hot end has brief contact heat around mould changes, swab tools, sampling tongs and maintenance near IS machines. The cold end has cut, abrasion and grip risk at inspection tables, rejected ware removal, carton packing, palletising and cullet bins. Those jobs need different glove builds: aramid or para-aramid terry for heat, and 13 gauge or 15 gauge cut-resistant coated liners for handling glass and packaging. For heat claims, the usual reference is EN 407:2020, especially contact heat performance. For cut and abrasion, buyers normally specify EN 388:2016+A1:2018. The coupe cut number and the ISO 13997 letter are not interchangeable. A glove marked 4X43D is a different purchasing decision from a glove marked 4131X, and a carton label carrying the wrong pictogram can become a distributor, customs or liability problem. GloveMark can make and customise knitted, dipped and sewn work gloves for this type of plant: aramid blend terry gloves, cotton terry heat gloves, cow split leather reinforcement, HPPE cut liners, steel or glass fibre blends, PU, nitrile microfoam, sandy nitrile and latex coatings. We do not make furnace-entry aluminised suits, molten-glass rescue gloves or high-radiant-heat PPE for standing in front of a furnace. If the main hazard is radiant heat rather than brief contact, we will not pretend a normal terry glove solves it.
Hot End Gloves: Contact Heat Is Not the Whole Story
Hot end glove sourcing starts with the actual touch time. A 7 gauge aramid terry glove may give better insulation for short contact with hot tools, but it can feel bulky around mould bolts, swab handles and bottle sampling. A 10 gauge aramid cotton blend is often easier to wear for short handling, while a double-layer terry glove improves insulation but loses finger control. The useful question is not only EN 407 level; it is whether the worker touches 100 C, 250 C or 350 C surfaces, for 3 seconds or 15 seconds, while gripping a tool or carrying a part. Common constructions we can supply include aramid terry knit, para-aramid outer with cotton inner, cotton terry for lower heat tasks, cow split leather palm patches, leather thumb crotch reinforcement and knitted or canvas cuffs from about 10 cm to 20 cm. Some buyers request Kevlar branded yarn. We can discuss that, but branded fibre requires authorised material traceability and usually a higher cost. Yellow yarn alone is not proof of branded aramid, and we will not print a fibre brand on packaging unless the supply chain supports it. Sampling for custom heat gloves normally takes 10 to 15 days after yarn, gauge, cuff length and reinforcement pattern are fixed. Bulk production is usually 35 to 55 days, longer if a leather patch die or special yarn colour is needed. MOQ is not the same as a basic 13 gauge PU glove. For custom heat gloves, a realistic starting point is 1,200 to 3,000 pairs per style and size range, with higher MOQ if the buyer changes yarn colour, cuff fabric, leather thickness or packaging.
Cold End and Inspection Gloves Need Cut, Grip and Feel
Cold end work looks cleaner than the hot end, but the glove failures are constant: broken bottle mouths, sharp rejected ware, carton edges, shrink film, pallet nails and cullet. A good starting point is a 13 gauge HPPE liner with glass fibre or steel fibre for EN 388 cut D, E or F, then a palm coating selected for the station. For inspection benches, a 15 gauge white or grey HPPE PU glove gives better fingertip feel and less visual contamination. For rejected ware or packing, sandy nitrile gives stronger grip on dusty cartons and slightly wet glass. EN 388 needs careful reading. The first digit covers abrasion, the second coupe cut, the third tear and the fourth puncture; the letter from A to F comes from ISO 13997 straight blade testing. If the coupe test is blunted by glass fibre or steel fibre, the marking may show X in that position. For general inspection, cut C or D may be enough. For cullet handling, many buyers ask for E or F, but high cut levels can become stiff and hot to wear, especially with steel fibre in a lower gauge liner. We normally ask buyers to split the cold end into at least three jobs: QC inspection, rejected bottle removal and cullet or warehouse work. One SKU for all three usually fails because the inspection worker wants touch, the cullet worker wants protection and the warehouse worker wants grip. For coated cut gloves, custom MOQ is commonly 3,000 to 6,000 pairs per colour and coating type. Bulk packing is often 12 pairs per polybag and 120 pairs per carton, but thicker cut gloves may need 60 or 72 pairs per carton to keep carton weight under about 18 to 22 kg.
Coating Choice: PU, Smooth Nitrile, Sandy Nitrile or Latex
PU is useful where fingertip feel and clean appearance matter. It works well on a 15 gauge HPPE liner for visual inspection, barcode scanning and light packing, but it is not our first choice around oil, water spray or mould lubricant residue. Smooth nitrile gives better oil resistance and abrasion than PU. Nitrile microfoam breathes better than a heavy smooth nitrile palm. Sandy nitrile has a rougher surface and usually gives better grip on dusty cartons, damp glass and shrink-wrapped pallets. Latex still has a place in some glass plants because it gives strong dry grip and flexibility, especially on 10 gauge or 13 gauge liners. The limitation is policy and ageing. Some importers avoid natural rubber latex because of allergy concerns, and latex can harden or crack faster if stored near ozone, heat or direct sunlight. If the customer has a latex-free PPE policy, we should not offer latex as a cheaper substitute. A practical specification by zone could be 15 gauge HPPE with PU palm for inspection, 13 gauge HPPE glass fibre cut D with sandy nitrile for rejected ware, and 10 gauge or 7 gauge aramid terry with leather palm for hot maintenance. This prevents the usual factory problem: workers cut off fingertips, double-glove, or refuse a glove because it was designed for the wrong station. Coating also changes freight cost. A thin PU palm glove packs much tighter than a sandy nitrile cut glove, and an aramid glove with 15 cm cuff takes much more carton volume. A common PU glove may pack 120 to 240 pairs per carton depending on thickness, while reinforced heat gloves may only pack 36 to 72 pairs. For LCL orders, carton dimensions can move the landed cost more than a 0.05 USD saving in unit price, so we check CBM before quoting FOB Ningbo, FOB Shanghai or EXW Yiwu.
Logo, Colour and Traceability Without Creating a Compliance Mess
Department colour coding is straightforward if planned before knitting. A blue cuff for inspection, red cuff for hot end and green cuff for packing can be done through cuff yarn, overlock colour or woven labels. Full custom liner colour is possible, but it depends on yarn MOQ and dye lot. Logo options include heat transfer on the back of hand, woven cuff label, printed polybag and export carton label. Direct printing on rough sandy nitrile is unreliable; it usually breaks up after dipping texture and use. Traceability matters more than decoration when the glove is sold as PPE. A proper production label should show model number, size, lot number, country of origin, fibre or coating description and the standard claim if the glove is certified. If EN 388 or EN 407 pictograms are used, the report must match the same liner, gauge, coating, cuff and reinforcement. Changing from glass fibre to steel fibre, from PU to nitrile, or from 10 cm cuff to 20 cm cuff can affect test results and certificate scope. We do not create CE marks or EN pictograms for untested constructions just because a buyer wants retail packaging. If a distributor needs EU PPE documentation, the testing and certificate route must be discussed before bulk packaging artwork is approved. For UK or EU importers, we can prepare technical file inputs such as product specification, size chart, carton label and bill of materials, but the responsible economic operator still needs proper compliance control. Our normal outgoing inspection follows AQL logic, commonly AQL 2.5 for major defects and AQL 4.0 for minor visual defects unless the buyer sets another plan. For heat and cut gloves we also check pair weight, cuff length, size marking, coating coverage, leather patch seam security, logo position and carton label accuracy. Pair weight drift is not cosmetic; it can reveal yarn substitution, lighter coating pickup or inconsistent terry density.
How to Brief the Factory Before Sampling
A useful brief for glass bottle manufacturing gloves names the station first. Do not write only heat glove or cut glove. Write hot end mould maintenance, hot bottle spot check, cold end inspection, rejected bottle removal, cullet bin handling or warehouse palletising. Add the target standard, such as EN 407:2020 contact heat level 2 or 3, or EN 388:2016+A1:2018 cut D, E or F. If you already use a glove, send one unused pair and one worn pair. The worn pair shows coating failure, fingertip wear, burn marks and worker modifications. We also need the size ratio, packing method and order route. A normal industrial size run is 7 to 11, with 9 and 10 often taking the largest share, but some plants need 6 or 12. A first order may be 3,000 to 10,000 pairs across two or three SKUs, not 30,000 pairs of one compromise glove. Packing can be 12 pairs per polybag with export cartons, or individual polybags with barcode labels if the buyer needs warehouse scanning. Pricing depends on yarn, gauge, coating, reinforcement and certification route, so we avoid fake instant quotes. A 15 gauge PU cut glove, a 13 gauge sandy nitrile cut E glove and a leather-reinforced aramid heat glove are different cost families. We usually quote EXW Yiwu, FOB Ningbo or FOB Shanghai after carton size is known. DDP can be discussed for some destinations, but only after HS code, carton CBM, duty assumptions and delivery address are clear. The safest route is sample, line trial, bill of materials freeze, then bulk production. Once the glove is approved, do not casually switch from aramid cotton to polyester cotton, from sandy nitrile to smooth nitrile, or from 13 gauge to 15 gauge to save a few cents. In a glass bottle plant, small glove changes show up quickly as burns, cuts, dropped bottles, higher consumption or workers leaving the PPE in the locker.
Talk to Someone Who Actually Makes Gloves
If you have a project you are scoping, send us the rough brief - target market, decoration method, an idea of quantities. We will reply with a realistic price band and an honest read on lead time. No deck, no high-pressure pitch.
If anything in this piece was unclear or contradicts what another supplier told you, email and ask. We answer most messages within one working day (CST 08:30-18:00).