Comprehensive Textile Industry and Manufacturing Vocabulary Guide

Classifications and Types of Textile Fibers

Textile materials are primarily categorized by the origin and manufacturing process of their fibers ($繄維$, Seni). These are divided into natural fibers ($天然繄維$, Serat alam) and chemical fibers ($化学繄維$, Serat kimia). Natural fibers include plant-based fibers ($植物繄維$, Serat tumbuhan) and animal-based fibers. Common plant fibers are cotton ($木綿$, Kapas/Katun) and various types of hemp or linen ($鸻$, Rami/Linen), including specific varieties like ramie ($ラミー$). Animal fibers prominently include wool ($羊毫$, Wol) and silk ($約$, Sutera).

Chemical fibers are further subdivided. Synthetic fibers ($合成繄維$, Serat sintetis) are man-made polymers such as polyester ($ポリエステル$), nylon ($ナイロン$), acrylic ($アクリル$), and spandex or elastane ($スパンデックス$). Regenerated fibers ($再生繄維$, Serat regenerasi) involve processing natural polymers into new forms, such as rayon ($レーヨン$) and acetate ($アセテート$). In production, manufacturers often use fiber blending ($混紡$, Blending) to combine different types. The resulting yarns are classified as either filament yarn ($フィラメント糸$), which consists of continuous strands, or spun yarn ($紡績糸$, Benang pintal).

Structural Properties and Characteristics of Knitting

Knitting ($畨み$, Rajutan) involves various organizational structures. Basic weaves include jersey or plain knit ($天竺畨み$), rib knit ($ゴム畨み$, also known as $Frais$ or $フライス畨み$), and purl knit ($パール畨み$). More complex structures include piqué or lacoste ($鹿の子畨み$), interlock knit ($インターロック畨み$), and double knit ($ダブルニット$). Individual stitch variations include the tuck stitch ($タック$) and the float or miss stitch ($フロート$).

Technical measurements are essential for quality control. These include the wale ($ウエール$), which refers to the vertical column direction, and the course ($コース$), referring to the horizontal row direction. Stitch density ($度目$, Domoku) and stitch length ($畨み込み長$) define the fabric's tightness. Gauge ($ゲージ$) determines the number of needles per inch, while fabric weight is measured as Metsuke ($目付$) in units of $g/m^2$. When examining finished products like cut-and-sew items ($カットソー$), manufacturers watch for defects such as skewing ($斜行$), curling of the edges ($カーリング$), and pilling ($ピリング$, the formation of small fiber balls).

Knitting Machinery and Yarn Specifications

The circular knitting machine ($丸畨み機$) is a primary tool, consisting of a cylinder ($シリンダ$) and a dial ($ダイヤル$). The knitting process relies on needles ($針$), specifically latch needles ($ラッチ針$) composed of a hook ($フック$) and a latch or lid ($ベラ$). Other vital components include the sinker ($シンカ$), cam ($カム$), yarn feeder ($給糸口$), and tension devices ($テンション装置$) to manage thread selektion ($選針$).

Yarn properties are quantified by several numbering systems: the yarn count ($番手$, Bante), denier ($デニール$), and decitex ($デシテックス$ or $dtex$). Yarns are twisted to provide strength ($捩り$, Yori), categorized as either S-twist ($S捩り$) or Z-twist ($Z捩り$). Plying ($合糸$, Goushi) involves combining multiple yarns together. During high-speed production, lubricant ($潤滑油$) is applied to reduce friction.

Hosiery Production and Construction

The manufacturing of socks ($靴下$) involves specific terminology for product parts: the waistband or elastic top ($口ゴム$), the heel ($蹃$), the toe ($爪先$), and the sole or bottom ($足底$). Products range from pantyhose ($パンティストッキング$) to knee-length variations ($ニーガングス$). Advanced techniques like plating knitting ($プレーティング畨み$) use a face yarn ($表糸$) and a back yarn ($血糸$) simultaneously.

Key materials in hosiery include covered yarn ($カバードヤーン$), woolly nylon yarn ($ウーリーナイロン糸$), and elastic rubber yarn ($ゴム糸$). The closing of the toe can be performed via linking ($リンキング$) or the Rosso method ($ロッソ$). Patterns are created through jacquard knitting ($ジャカード畨み$), spiral patterns ($スパイラル柄$), or links patterns ($リンクス柄$). Machinery may utilize a double cylinder ($ダブルシリンダ$) equipped with a latch guard ($ラッチガード$).

Dyestuffs and Chemical Additives

Dyeing involves various colorants: dyes ($染料$, Senryou) and pigments ($顔料$, Ganryou). Specific types of dyes include reactive dyes ($反応染料$), acid dyes ($酸性染料$), disperse dyes ($分散染料$), direct dyes ($直接染料$), cationic or basic dyes ($カチオン染料$), vat dyes ($建染め染料$), metal complex dyes ($鄑属錤塩染料$), and leveling dyes ($レベリング染料$).

Chemicals used in the process include Sodium Hydroxide ($水酸化ナトリウム$, also known as caustic soda or $\text{NaOH}$), Sodium Sulfate ($\text{Na}_2\text{SO}_4$, known as Glauber's salt or $芒硝$, Boushou), and Hydrogen Peroxide ($\text{H}_2\text{O}_2$ or $過酸化水素$). Essential auxiliary agents include defoamers or anti-foaming agents ($消泡剤$), leveling agents ($均染剤$), retarding agents ($緩染剤$), mordants ($媒染剤$), and carriers ($キャリヤー$).

Dyeing Processes and Pre-treatment

The journey of coloring textiles ($染色・ダイイング$) begins with pre-treatment ($前処理$), specifically scouring ($精練$) to remove impurities and bleaching ($漂白$), which can be oxidation-based ($酸化漂白$) or reduction-based ($還元漂白$). Following dyeing, soaping ($ソーピング$) and fixation ($固着$) are performed to ensure color stability.

Methods include exhaust dyeing ($悲染$) and continuous dyeing ($連続染色$). Key variables include the liquor ratio ($浴比$) and temperature rise ($昇温$), often under high-temperature and high-pressure ($高温高圧$, HT/HP) conditions. Machinery types include the jet dyeing machine ($液流染色機$), open-width dyeing machine ($拡布染色機$), rope dyeing machine ($ロープ染色機$), and cheese dyeing machine ($チーズ染色機$). Finishing ($仕上げ$) includes drying ($乾燥$) and mercerization ($シルケット加工$).

Quality Control, Colorimetry, and Testing

Color fastness ($堅ろう度$) is evaluated regarding light ($日光堅ろう度$), washing ($洗濯堅ろう度$), and wet conditions ($湿潤堅ろう度$). Changes are measured using color change ($変退色$) and staining ($汚染$) metrics, often referenced against the Blue Scale ($ブルースケール$) or Grey Scale ($グレースケール$). Color theory involves Hue ($色相$), Lightness ($明度$), Saturation ($彩度$), and achromatic colors ($無彩色$). Phenomena like metamerism ($メタメリズム$) describe how colors change depending on the light source ($光源$), such as the north window ($北窓$).

Chemical testing involves monitoring $pH$ (acidity/alkalinity), where neutral is $pH=7$ ($中性$). Processes include preparing solutions ($溶液$), dissolving ($溶解$), and preventing unwanted hydrolysis ($加水分解$).

Bedding Production and Construction Techniques

Bedding items ($寝具$) comprise the mattress or under-futon ($敷きふとん$), duvet or comforter ($掛けふとん$), zabuton floor cushions ($座ふとん$), and pillows ($まくら$). Fillings or middle-cotton ($中わた$) may consist of down ($ダウン$) or feathers ($フェザー$). The exterior is the shell fabric ($側生地$).

Construction methods include quilting ($キルティング$), tufting ($中とじ$), and the insertion of cotton ($綿入れ$). Bedding can be revitalized through the process of Uchi-naoshi ($打ち直し$). Manufacturing steps include fabric cutting ($裁断$), inspection ($検反$), and sewing ($縫い目$), with attention to the stitch length ($糸目$). Critical performance factors are moisture absorption ($吸湿性$) and air permeability ($通気性$).

Workplace Safety and Occupational Health

Industrial safety ($安全$) requires identifying hazards ($危険$) and using personal protective equipment ($保護具$, APD), including protective masks ($防護マスク$), rubber gloves ($ゴム手袋$), and goggles ($保護眼鏡$). Electrical hazards include electric shock ($感電$) and leakage ($漏電$), requiring grounding ($アース$) and fuses ($ヒューズ$). Machinery safety is maintained through safety valves ($安全弁$) and monitoring for cracks ($亀裂$).

In case of accidents ($労働災害$), first aid ($応急処牮$) and treatment for burns ($やけど$) must be available. The work environment requires ventilation ($換気$) and the maintenance of heat exchangers ($焱交換機$). Systematic organization follows the $5S$ principles of Seiri and Seiton ($整理整頓$). Additional treatments in bedding production include anti-mite treatments ($防ダニ加工$).

Quality Management and Production Optimization

Quality management ($品質管理$) involves thorough product inspection ($検品$) to find defects ($不良$) in dyeing ($染色不良$) or knitting ($畨み不良$). Products must meet dimension specifications ($寸法$) and standards ($規格$), such as the Japanese Industrial Standards ($日本産業規格$, JIS). Labels must clearly state quality ($品質表示$), composition ($組成表示$), and fiber blend ratios ($混用率$).

Production management ($生産管理$) utilizes standard work times ($標準作業時間$), work analysis ($作業分析$), and daily work reports ($作業日報$). Maintenance ($メンテナンス$) is required for machinery and management of consumables ($消耗品$). Environmental factors like illuminance or light intensity ($照度$) are measured in Lux ($\text{Lux}$). Fabric durability is assessed via abrasion resistance ($耐摩耗性$).