Tricky Textile interview questions

75 questions with answers (TEX-426 to TEX-500). Try each one aloud before reading the answer.

Textile Fibers

TEX-426 · Is natural fibre always more sustainable than synthetic fibre?

Trap: Not automatically. Conventional cotton uses large amounts of water and pesticides, while recycled polyester can have a lower footprint. Sustainability depends on the whole life cycle, including durability, washing and end-of-life.

TEX-427 · Is "bamboo fabric" made of bamboo fibres?

Trap: Most bamboo textiles are viscose made by dissolving bamboo pulp in chemicals and regenerating it. The final fibre is regenerated cellulose, not natural bamboo bast fibre, and labelling rules require it to be called viscose from bamboo.

TEX-428 · Does a higher thread count always mean better bed sheets?

Trap: Beyond about 300–400, high counts often come from multi-ply yarns counted individually or very fine, weaker yarns. Fibre quality, yarn type and weave matter more than the number.

TEX-429 · Is silk the strongest natural fibre?

Trap: Silk has high tenacity for a natural fibre, but by some measures flax and other bast fibres are stronger, and silk weakens when wet. "Stronger than steel" claims refer only to spider silk per unit weight.

TEX-430 · Does a fibre with high moisture regain always feel more comfortable?

Trap: Moisture absorption helps in moderate conditions, but in heavy sweating cotton holds water and feels clammy, while wicking synthetics move sweat away and dry faster. Comfort depends on fabric construction too.

TEX-431 · Is polyester always non-breathable?

Trap: Breathability depends mainly on fabric structure and finish. Knitted or mesh polyester and microfibre fabrics can be very breathable even though the fibre absorbs little moisture.

TEX-432 · Does a finer fibre always mean a stronger yarn?

Trap: Finer fibres give more fibres per cross-section and better cohesion, which helps strength, but immature fine cotton or damaged fibres can weaken yarn. Maturity, length and fibre strength matter too.

Yarn Manufacturing & Spinning

TEX-433 · Does more twist always make a better yarn?

Trap: Twist adds strength only up to an optimum; beyond it, strength falls, yarn becomes harsh and production drops. Knitting yarns are deliberately given low twist for softness.

TEX-434 · Does a higher Ne count mean a thicker yarn?

Trap: Ne is an indirect system: a higher number means a finer yarn. In direct systems like tex and denier, a higher number means a coarser yarn.

TEX-435 · Is a perfectly even yarn always ideal?

Trap: Fancy and slub yarns are deliberately irregular for design effects. For standard yarns evenness is desired, but some variation is acceptable within quality limits.

TEX-436 · Does running a ring frame faster always increase profit?

Trap: Higher spindle speeds raise output but also end breaks, traveller wear, energy and hairiness. Beyond an optimum, quality loss and downtime cancel the gain.

TEX-437 · Is combed yarn always better than carded yarn?

Trap: Combing improves evenness and strength for fine counts but removes 12–20% fibre as noil and costs more. For coarse counts and some products, carded yarn is the sensible choice.

TEX-438 · Does rotor yarn always have lower strength than ring yarn?

Trap: Rotor yarns are typically 10–20% weaker due to wrapper fibres, but they are more even, have fewer thin places and better abrasion resistance. For many denim and towel products, they perform better overall.

TEX-439 · Does doubling slivers increase yarn count?

Trap: Doubling combines slivers to even out variation; drafting then reduces linear density. The aim of doubling is uniformity, not count change.

Weaving Preparation & Weaving

TEX-440 · Is a heavier fabric always stronger?

Trap: Weight comes from yarn count and density, but strength depends on fibre type, yarn strength and structure. A lighter fabric made from high-strength yarns can be stronger.

TEX-441 · Does a higher picks per inch always make a better fabric?

Trap: More picks increase density and cost and can reduce tear strength and drape if overdone. The right density depends on end use.

TEX-442 · Is sizing applied to improve the finished fabric's quality?

Trap: Sizing protects warp yarns during weaving and is removed during desizing. Excess or unremoved size harms dyeing and finishing.

TEX-443 · Do shuttleless looms always produce better fabric than shuttle looms?

Trap: Shuttleless looms are faster and more efficient, but some traditional fabrics with true selvedges or special effects are still made on shuttle looms.

TEX-444 · Is a satin weave stronger because it looks smoother?

Trap: Satin has long floats and fewer interlacings, so it snags and abrades more easily and can be weaker than plain weave of the same yarns.

TEX-445 · Does increasing warp tension always reduce warp breaks?

Trap: Higher tension can reduce slack-related faults but increases breaks from stress and abrasion. Each fabric has an optimal tension.

TEX-446 · Is jacquard weaving only for luxury fabrics?

Trap: Jacquard is also used for labels, technical fabrics, airbags and medical products because it can control individual warp ends.

Knitting

TEX-447 · Is knitted fabric always stretchier than woven fabric?

Trap: Some warp-knitted fabrics are very stable, and stretch woven fabrics with elastane can stretch more than ordinary knits.

TEX-448 · Does a tighter knit always reduce pilling?

Trap: A tighter structure holds fibres better and helps, but pilling depends more on fibre type (strong synthetic fibres keep pills attached), yarn twist, hairiness and finishing. A loose knit of a well-chosen yarn can pill less than a tight knit of a hairy one.

TEX-449 · Does adding elastane always improve garment quality?

Trap: Elastane improves fit and recovery but increases cost, complicates dyeing and heat-setting, and makes recycling harder.

TEX-450 · Is circular knitting only able to make tubular fabric?

Trap: Circular machines knit a tube, but the tube is often slit and finished at open width, and many fabrics such as fleece, jersey for cut-and-sew and sportswear fabrics are produced this way. Seamless garment machines also shape the tube.

TEX-451 · Does a finer gauge machine always give a better fabric?

Trap: A finer gauge suits finer yarns and lighter, smoother fabrics. Heavy, bulky fabrics need coarser gauges and thicker yarns; using a fine gauge for them causes needle damage and poor knitting.

TEX-452 · Is spirality in single jersey caused only by yarn twist?

Trap: Yarn twist liveliness is a major cause, but the number of feeders, stitch length, machine rotation direction, fabric tightness and finishing all influence spirality. Fixing only the yarn may not solve it.

Nonwovens

TEX-453 · Are nonwovens always disposable products?

Trap: Many are durable: geotextiles last decades in roads and embankments, and needle-punched carpets, automotive headliners, roofing membranes and filter felts are built for long service. "Disposable" describes only part of the market, such as wipes and hygiene products.

TEX-454 · Is a heavier nonwoven filter always more efficient?

Trap: Efficiency depends mainly on fibre diameter, structure and electrostatic charge. A heavy filter made of coarse fibres can capture fine particles worse than a light meltblown layer, while adding much more pressure drop and energy cost.

TEX-455 · Does electret charging keep a mask filter efficient for its whole life?

Trap: Charge decays with humidity, heat, time and exposure to oily aerosols or cleaning with alcohol. Efficiency can fall noticeably even when the mask looks clean, which is why reuse and washing are limited.

TEX-456 · Are spunlace nonwovens held together by adhesive?

Trap: Spunlace (hydroentangled) fabrics are bonded purely by high-pressure water jets entangling the fibres. No binder is used, which is why they feel soft and cloth-like.

TEX-457 · Is needle punching only used for cheap, low-grade products?

Trap: Needle punching makes high-value engineered products such as geotextiles, hot-gas filter felts, automotive interior parts and preforms for composites. The process is versatile and precise, not just low cost.

TEX-458 · Is a nonwoven equally strong in all directions?

Trap: Carding and laying usually orient fibres in the machine direction, so many nonwovens are much stronger along it than across it. Cross-lapping or random laying is used when more balanced strength is needed.

Wet Processing & Pretreatment

TEX-459 · Does stronger bleaching always give a whiter fabric?

Trap: Beyond a point, extra peroxide or longer bleaching damages cellulose, reduces strength and can cause yellowing later, while adding little whiteness. Full white is usually reached with optical brighteners on a well-bleached base.

TEX-460 · Is scouring just washing dirt off the fabric?

Trap: Scouring chemically removes natural waxes, pectins, proteins and spinning oils that make cotton water-repellent. Without it, the fabric will not absorb dyes and chemicals evenly, whatever its visual cleanliness.

TEX-461 · Can greige fabric be dyed directly to save time?

Trap: Size, waxes and oils on greige fabric block dye penetration, causing patchy, unlevel shades and poor fastness. Except for special cases, proper pretreatment is essential and saves more in re-dyeing than it costs.

TEX-462 · Does heat-setting polyester before dyeing improve dye uptake?

Trap: Heat-setting improves dimensional stability, but it increases crystallinity and can reduce dye uptake and change shade. The order of heat-setting and dyeing is chosen for each fabric to balance stability and colour.

TEX-463 · Is water with zero hardness ideal for every wet process?

Trap: Soft water avoids scale and precipitates in most processes, but some dyeing and finishing steps tolerate or even need small amounts of calcium, and excessive softening adds cost. Water quality is specified per process.

TEX-464 · Is mercerisation done only to make cotton shiny?

Trap: Lustre is one effect, but mercerisation also increases strength, dye affinity (saving dye) and dimensional stability. Many fabrics are mercerised mainly for these functional gains.

Dyeing

TEX-465 · If two fabrics match in daylight, will they match in a shop?

Trap: Not necessarily. Metamerism means samples dyed with different dye combinations can match under one light source and differ under another, such as LED or fluorescent store lighting. Matches are checked under several standard illuminants.

TEX-466 · Does adding more dye always make the shade deeper?

Trap: Each fibre has a saturation limit. Beyond it, extra dye stays on the surface, washes off, lowers rub and wash fastness and pollutes effluent without deepening the shade.

TEX-467 · Does a dye with excellent wash fastness also have excellent light fastness?

Trap: Wash and light fastness depend on different properties: bonding and molecular size for wash, chromophore stability for light. A dye can be excellent in one and poor in the other, so each must be checked.

TEX-468 · Is reactive dye fixation 100% because it bonds covalently?

Trap: The covalent bond is permanent once formed, but only about 60–90% of the dye reacts with fibre; the rest hydrolyses with water and must be washed off. That unfixed dye is a major source of effluent colour.

TEX-469 · Does a higher dyeing temperature always give better results?

Trap: Higher temperature speeds diffusion but can cause rapid, unlevel uptake, fibre damage (especially for wool and elastane) and dye decomposition. Each dye–fibre system has an optimum temperature profile.

TEX-470 · If the lab dyeing matches, will the bulk dyeing match automatically?

Trap: Bulk machines differ in liquor ratio, heating rate, circulation and fabric preparation, so recipes need lab-to-bulk correction and trial batches. Ignoring these differences is a common source of off-shade lots.

Printing & Finishing

TEX-471 · Is pigment printing always lower quality than dye printing?

Trap: Pigment printing works on any fibre, needs no steaming or washing, saves water and gives good light fastness. Its weaknesses are hand and rub fastness, so the right choice depends on the product.

TEX-472 · Does adding more softener always improve the fabric?

Trap: Excess softener reduces water absorbency, can cause yellowing, spotting and poor sewability, and may reduce colour fastness. Each fabric has an optimum dose.

TEX-473 · Is every waterproof fabric breathable?

Trap: Many waterproof coatings (like PVC) block water vapour completely and feel clammy. Breathable waterproof fabrics need special microporous or hydrophilic membranes.

TEX-474 · Does an easy-care resin finish make cotton stronger?

Trap: It improves wrinkle recovery but reduces tensile and tear strength, often by 20–40%, because crosslinks make fibres brittle. Additives and controlled curing limit the loss.

TEX-475 · Is digital printing always faster than screen printing?

Trap: Digital is faster to set up because no screens are needed, but rotary screen printing runs far faster in metres per hour. For long runs, screen printing finishes sooner.

TEX-476 · Does an antimicrobial finish stop odour permanently?

Trap: Many finishes wash out or lose activity over repeated laundering, and odour can also come from sources the finish doesn't control. Durability ratings after a specified number of washes matter.

Textile Testing & Quality Control

TEX-477 · If a fabric passed testing once, is quality assured for all future lots?

Trap: A single test shows one lot met the requirement. Raw materials and processes vary, so ongoing sampling, process control and periodic retesting are needed to assure consistent quality.

TEX-478 · Is a fabric with high tensile strength always durable?

Trap: Durability in use also depends on abrasion, tear, pilling, seam strength and resistance to washing and light. A strong fabric can still wear out quickly if it abrades easily.

TEX-479 · Can visual inspection detect every fabric defect?

Trap: Visual inspection misses shade variation within tolerance limits, hidden yarn weakness, chemical residues and dimensional instability. These need instruments and lab tests.

TEX-480 · Do standard lab tests exactly predict real-life performance?

Trap: Tests are simplified and accelerated models of use. They rank fabrics reliably, but real use involves combined stresses, so wearer trials and field feedback are still valuable.

TEX-481 · Is a fastness grade of 4 always acceptable?

Trap: Acceptance depends on the buyer's specification, product and test. Grade 4 may pass for washing on casual wear but fail where 4–5 is required, for example for sportswear or children's products.

TEX-482 · Does increasing the number of tests always improve product quality?

Trap: Testing only detects problems; quality is built by controlling raw materials and processes. Excess testing adds cost without improvement unless results drive corrective actions.

Garment Manufacturing

TEX-483 · Does buying faster sewing machines always increase output?

Trap: In most operations, handling time (picking, aligning, positioning) is far longer than actual sewing time. Faster machines help little unless handling, work methods and line balance improve.

TEX-484 · Is the cheapest fabric always the best choice for costing?

Trap: Cheap fabric can have more defects, shrinkage and shade variation, raising cutting waste, rejects and returns. Total cost of quality matters more than price per metre.

TEX-485 · Do more stitches per inch always make a stronger seam?

Trap: Up to a point higher SPI increases seam strength, but too many needle penetrations weaken the fabric along the seam and cause puckering. Each fabric and seam type has an optimum.

TEX-486 · Is a size "M" the same in every brand?

Trap: There is no universal sizing system; each brand uses its own body measurements, ease and grade rules, so an M can differ by several centimetres between brands.

TEX-487 · Is automation always cheaper in garment making?

Trap: Automation pays when volumes are high and styles stable. For small orders with frequent style changes, flexible manual lines are often cheaper.

TEX-488 · Does cutting the SMV always improve productivity?

Trap: Unrealistic SMVs push operators to rush, increasing defects, rework and fatigue. Productivity improves when methods change, not when targets are just tightened.

Technical Textiles

TEX-489 · Is a "bulletproof" vest proof against all bullets?

Trap: Body armour is "bullet-resistant" and rated against specific threats (calibre, velocity). It may stop handgun rounds but not rifle rounds, and blunt trauma can still injure.

TEX-490 · Are geotextiles used only to reinforce soil?

Trap: Most geotextiles separate soil layers, filter water, drain or protect membranes. Reinforcement is one function and often uses geogrids instead.

TEX-491 · Is carbon fibre equally strong in every direction?

Trap: Carbon fibre is extremely strong along its axis but weak across it. Composite parts must place fibres in the directions of load.

TEX-492 · Are flame-retardant fabrics fireproof?

Trap: FR fabrics resist ignition, slow flame spread and self-extinguish when the flame is removed, but they can still char and fail under sustained heat. "Fireproof" is not the correct claim.

TEX-493 · Do smart textiles work without electronics?

Trap: Some are passive (phase change or colour-change materials), but most sensing and communicating textiles need batteries, chips and connectors, which raise washability and durability issues.

TEX-494 · Is a new medical textile sterile because it has never been used?

Trap: New products can carry microorganisms from manufacturing and packaging. Sterility needs validated sterilisation (gamma, EtO or steam) and sterile packaging.

Sustainability & Textile Machinery

TEX-495 · Can recycled polyester be recycled again forever?

Trap: Mechanical recycling shortens polymer chains and adds contamination with each cycle, so quality drops. Chemical recycling can restore quality, but it costs more energy and money.

TEX-496 · Does organic cotton use no water?

Trap: Organic cotton avoids synthetic pesticides and fertilisers, but it still needs water, and irrigated organic cotton can use a lot. Water use depends on climate and irrigation.

TEX-497 · Does a "biodegradable" fabric disappear in a landfill?

Trap: Landfills are compacted and oxygen-poor, so even natural fibres degrade very slowly and can produce methane. Biodegradability claims depend on specific conditions.

TEX-498 · Does a newer machine always save energy?

Trap: Efficiency gains require proper setup, maintenance and utilisation. A new machine running at low load or poor settings can waste energy.

TEX-499 · Is zero liquid discharge always the best environmental option?

Trap: ZLD eliminates liquid effluent but uses lots of energy for evaporation and produces solid salt waste. Water recycling with partial discharge may have a lower overall footprint.

TEX-500 · Does donating used clothes always reduce textile waste?

Trap: Only a small share is resold locally; much is exported, and some ends up in landfill or open burning abroad. Reducing consumption and improving recycling are also needed.

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