Comprehensive Guide to Fabric Processing and Garment Construction

Measuring Trousers (Shim): To draw the primary structural diagram for trousers, specific body measurements must be recorded: * Semi-waist circumference ( $S_{bel}$ ). * Semi-hip circumference ( $S_{bo'ksa}$ ). * Distance from the waistline to the seat level ( $D_{os}$ ). * Total trouser length ( $L_{shim}$ ). * Leg opening width ( $W_{pocha}$ ).
Measuring Women's Dresses (Ayollar ko'ylagi): Basic construction requires specific measurements and initial data: * Model sketch and size measurements. * Design and technological additions ( $P$ ). * Specific formulas for the back length to the waist ( $OrbU - 1$ ) and back width ( $OrK + Q_{ort}$ ). * Chest measurements: The first chest width is measured horizontally between the front corners of the armpits above the mammary glands.
Measuring Skirts (Yubka): Necessary measurements include waist circumference, hip circumference, and the total length of the skirt.
Circumference Reporting: The waist circumference ( $O_{bel}$ ) magnitude is typically recorded as a semi-measurement ( $1/2$ ) for construction purposes.
Armhole and Shoulder Measurement: Shoulder width and armhole depth are calculated using specific formulas, such as $YelA : 3 + Q_{yen.o'miz}$ for certain dress types.

Silhouette Definitions: * Straight Silhouette (To'g'ri siluet): In straight garments, the width at the hemline is generally equal to the width at the hip line. * Conical Silhouette (Konussimon): Characteristic of flared skirts. * Other Types: Semi-widened, circular, and fitted silhouettes.
Technical Modeling: This process is performed by modifying the base construction. It involves transferring model lines onto the basic drawing to achieve the desired aesthetic and functional design.
Vertical Alignment of Lines: Drawing typically follows a specific vertical sequence: Neckline $\rightarrow$ Chest line $\rightarrow$ Waistline $\rightarrow$ Hemline.
Functional Clothing (Utilitar kiyim): Performs protective and hygienic functions rather than purely symbolic or artistic roles.
Uzbek National Clothing: Distinctive features include specific collar structures and the use of the "qosh-etak" (double-hem) style.

Sewing Needles: Needles are numbered from $1$ to $12$ based on their length and thickness.
Scissors: There are $8$ distinct types of scissors used in garment processing.
Sewing Machine Classes and Brands: * Universal Machines: Used for straight stitching and finishing. * Specialized Machines: "BROTHER DBr-B790-600", "ADIEB 69-FA-373", "ZUKT DDZ555-5F300", and "PFAFF 421E-18-26" are used for collar preparation and specific industrial tasks. * Zipper Attachment: The machine 72207/101-264 kl "Minerva" (from the former Czechoslovakia) is specifically used for attaching zippers.
Historical Milestones in Sewing Technology: * William Lee: Invented a single-thread chain-stitch knitting machine in the late 16th century. * Karl Weisenthal: Created a sewing machine that copied manual stitches in $1755$ . * Thomas Saint: Credited with early sewing machine patents ( $1790$ ).

Seam Types and Applications: * Joining Seams (Biriktirma chok): Used for shoulder seams, usually with a width of $1.0$ to $1.5\,cm$ . * Topstitching (Bostirma chok): Often used for cuffs and collars. * Seam Allowances: Trouser side seams are typically stitched with a $1.0\,cm - 1.5\,cm$ allowance.
Interlining (Qotirma): Applied to details that must maintain their shape, such as collars, cuffs, and pocket openings. In collars, it is typically applied to the upper collar or the tips. Fliseline is a common adhesive interlining used to improve the quality of welt pockets.
Ironing (Dazmollash): * Flattening: Lining seams are ironed by laying them to one side. * Ease/Shrinkage (Kirishtirib dazmollash): Used in the sleeve cap area to handle fullness.
Manual Sewing Stitches (Qahviq): * Temporary joining of parts uses basting stitches with a length of $1\,cm - 3\,cm$ . * Complex stitches include button attachment, hook-and-eye sewing, and hidden joinery.

Collars (Yoqa): * Types include double-layer, standing, and single-layer (often used in girls' dresses). * Interlining is essential for shape retention. * Calculation for back neck depth in dresses: $(BnYaA : 3 + 1) / 3$ .
Sleeves (Yeng): * Standard Types: Set-in (o'tkazma), Raglan, and Integrated (yaxlit bichilgan). * Raglan Sleeves: Can consist of $2$ to $4$ seams. * Integrated Sleeves: Preferred for reducing labor and for specific aesthetics (e.g., Kimono style). * Sleeve Fullness: For high-quality fit, fullness is distributed between notches, creating a slight ease of $0.7\,cm - 1.2\,cm$ .
Cuffs (Manjet): * Men's shirt cuffs typically have a width of $6\,cm$ . * Decorative topstitching is often placed at a distance of $0.5\,cm$ from the edge.
Fasteners (Taqilma): * Skirts use zippers, hooks, or button loops, typically with a length of $15\,cm$ . * The decorative stitching on trouser zippers should be placed at a distance of $0.1\,cm$ from the edge.

Groups of Pockets: Pockets are classified into three main groups based on location: upper, lower, and side pockets.
Slit/Cut Pockets (Qirqma cho'ntak): * Can be vertical, horizontal, or slanted. * Welt Pockets (Listochka): The finished width of a chest welt pocket is typically $2.5\,cm - 3.0\,cm$ . The welt must match the width of the pocket opening. * Frame/Double-Welt Pockets: Requires marking $3$ specific lines for construction.
Pocket Components: 1. Facing (Ko'rinma): Cut from the main fabric (avra). 2. Pocket Bag (Cho'ntak xalta): Often cut from lining fabric. 3. Welt (Listochka/Mag'iz): Stabilized with interlining.

Dart Calculation (Vitachka): The total sum of darts for a skirt or dress is the difference between the hip and waist measurements: $V = (S_{bo'k} + P_{bo'k}) - (S_{bel} + P_{bel})$
Hip Expansion Formula: $bb_1 = (BkYaA + QBk - Bk_2Bk_1) : 2$
Crotch Width for Trousers (Back portion): $Ya_{21}Ya_5 = 0.2(S_{bo'ksa} + P_{bo'ksa})$

Visual Distance: When sewing while seated, the distance between the tailor's eyes and the product should be $25\,cm - 30\,cm$ .
Hygienic Requirements: Breathability (havo o'tkazuvchanligi) is a primary requirement for clothing comfort.
Defect Causes: Errors in garment fit usually stem from incorrectly taken body measurements or improper structural drafting.

Tree Trunk Sections: A tree trunk can be divided into cross-sectional (ko'ndalang), radial, and tangential cuts.
Wood Characteristics: Classified by texture, macrostructure, color, moisture content, and density.