1. Material Name: Cow Leather (Leather)
Test standard: GB/T16799-1997
1. Common colors: see swatches;
2. Common thickness: one type:
Type 2:
(Thin skin:
3. Appearance requirements:
1 leather surface: fine and uniform grain; allow leather natural lines, dark marks, tendons and other minor defects; uniform color without flowering, no cracking surface; uniform coating of painted leather, firm adhesion of coating, no falling off;
2 leather body: the whole leather is almost even and thick, the leather is full, soft and elastic, allowing slight natural odor;
3 Gerry: Clean, no greasy feeling.
4. Grading: According to the proportion of the available area of ​​the whole leather is divided into four levels
1 Utilization area: Level 1: 〉90%,
Level 2: 〉80%,
Level 3: 〉70%,
Level 4: 〉60%;
2 Allow minor defects: ∠5%;
3 The main parts of the whole leather (cortex, hip back) shall not have any disability that affects the function of use;
4 slight defects means that it does not affect the inherent quality and use of the product, and only slightly affects the appearance of defects, such as slight color, rough leather surface, unclear embossed leather, uneven color, etc.;
5 If the leather surface lacks fullness and flexibility, the first and second grade products should be lowered by one level.
5. The dermis is an animal skin that is slowly and naturally formed throughout life. It is a product unique to nature. It is not only inherently noble, durable, eye-catching, but also useful for health. It is a generation for generations. The world's people love, the eternal pop of the treasures of nature.
6. Physical and chemical properties:
project | Type one | Type II |
Tensile strength (N/mm) | ≥10 | ≥15 |
Tear strength (N/mm) | ≥30 | ≥35 |
Elongation at break (%) | ≤80 | |
Color rubbing fastness | Dry: grade 4.5; wet: grade 3.5 | |
Coating adhesion fastness | ≥2.5N/ | |
PH value | 3.5-6.6 | |
Dilution difference | 0.7 (when 3.5 ≤ PH value ≤ 4.0, check this) | |
2. Material Name: Sponge
Test standard: QB/T2454-1999
1. Common specifications and models:
1 red soft super (T103) density:
2 hard super (T104) density:
3 Lanzhong Super (T106) density:
4 gray high elastic soft (T107S) density:
5 gray high elastic hard (T107H) density:
6 super soft super (FT108) density:
7 orange high elastic (FT108) density:
8 green high elastic density (T111):
9 yellow high elastic (T112) density:
10 Violet (T113) density:
2. Permission tolerance: density: ±
3. Tensile strength (kpa): ≥ 85;
4. Elongation (mm): ≥ 140;
5.75% compression set (%): 10.0;
6. Tear strength (N/cm): ≥ 1.70;
7. Indentation performance (N): hardness when indented 25% ≥ 80;
Hardness ≥130 when indented 65%;
65%/25% indentation ratio ≥ 1.70;
8. Scope: Density:
density:
9. Safety and health requirements:
1 Visually observe the health-threatening arthropods or eggs, etc.;
2 Dry, no mildew and abnormal pungent smell;
3 No inclusions of sediment and metal objects.
10. Physical properties:
1 Color: basically uniform, allowing a light yellow core;
2 Crack: glue with glue to not affect the appearance size, the total length of bonding does not exceed
3 Stripes: Allows light streaks;
4 Knife pattern: not allowed to exceed
5 Stomata: not allowed
Material name: hemp
Test standard: GB18401-2001
1. Common specifications and grades: See swatches (divided into ordinary, high-quality, high-grade, special-shaped first consultation)
2. Wide width:
3. Direction of tear strength (kg): warp direction: ≥ 300, weft direction: ≥ 300;
4. Tensile strength (kg): radial 16.5, latitude 11.8;
1. Color fastness to washing and color fastness to washing: under acidic and alkaline conditions: ≥3-4;
6. Fastness to rubbing resistance: dry ≥ 3-4; wet ≥ 4;
7. Light fastness: ≥4-5;
8. Pilling (level): ≥3-5
9. Formaldehyde content (mg/kg): Direct contact with skin meets E1 environmental requirements;
10. Yarn anti-slip (mm): warp direction: ≤ 3-6; latitude ≤ 3-6;
11. With anti-static, antibacterial, dustproof and other functions.
4. Material Name: Spraying glue
Test standard: GB18582-2001;
1. Ingredients: elastomeric rubber (SBS), acetone, ethyl ester, solvent oil, natural resin, filler;
2. Appearance: light yellow or brown viscous liquid;
3. Viscosity: 2000-3000 cps;
4. Non-volatile amount: 45±0.1%
5. Thermal decomposition temperature: >
6. Flash point:>
7. Auto-ignition temperature: >
8. How to use:
4 Clean the oil and impurities on the surface of the bond;
5 Gluing: Apply the adhesive evenly to the surface of the adherend with a spray tool;
6 Lamination: the material to be bonded is placed on the base surface of the coating, and is not pressed after being pasted. If it is slightly pressurized, the bonding is more firm;
7 Curing: at
9. Environmental protection: free formaldehyde (g / kg): ≤ 0.5; benzene (g / kg): ≤ 5;
Toluene + xylene (g / kg): ≤ 200; total volatile organic compounds (g / l): ≤ 750; meet E1 environmental requirements;
10. Performance: good operability, no flying silk, followed by strong, heat, water and aging resistance;
11. Technical parameters:
1 bonding time: 5-10 minutes;
2 viscosity (pas): 110 ± 30;
1 Solid content (%): 45 ± 1;
4 heat resistance:
2 Peel strength (KN/M): ≥1.0;
5. Material name: wooden handrail, wooden frame
Test Standard: NHLA (American Hardwood Association Rating Rules)
Common varieties and specifications:
1. Variety:
Walnut, CHERRY, BEECH, BRICH, ASH, OAK, rubberwood, etc.;
2. Specifications:
1 length: (FAS level)
(1com level)
2 thickness:
3 width: (FAS level)
(1com class) 3 inches and above accounted for 66% -1/3%;
3. Requirements for external use logs: measured by width, length, flawless, and net material range (spot, knot, hollow, variety, etc.);
1 texture straight, no insects, decay, dead knots, resin capsules, twill, cracks, defects and other defects;
2 Moisture content: less than the average annual wood balance moisture content of the region is 15.9%
3 colors and textures are similar;
4 density:
4. External wood carpentry requirements:
1The appearance is smooth, no hoe, no scars, no collapse, no reverse grain, no groove;
2 inverted 楞 uniform, rounded corners and curvature and lines are symmetrical and uniform, straight and smooth;
5. External paint requirements (color see swatch):
1 The paint film layer has no obvious sag;
2 no pinholes, no wrinkles or rising edges;
3 no obvious powder or slag;
4 no obvious burrs and color differences;
6. Material name: inner shelf
1. Common specifications:
2. Material requirements:
1 The area of ​​slight decay is less than 15% of the parts area;
2 The depth of decaying material is less than 25% of the thickness of the material;
3 The natural twill of the wood in the stressed part is less than 20%;
4 allows slight cracks or knots, but does not affect the structural strength;
5 without bark, no insect erosion;
3. Moisture content: less than the annual average wood moisture content of the region is 15.9%;
4. Density:
7. Material Name: Rubber Band
1, Common specifications: wide
2, Evenly arranged, no interface, no tears;
Eight. Plywood (plywood)
Test standard: GB18580-2001
Common specifications and models:
1. Format:
2. Thickness:
3. Formaldehyde emission (mg/
4. The sheet is strong, durable and dimensionally stable;
5. The surface is smooth and smooth, easy to decorate and process, and can be directly painted;
6. It is not easy to be deformed, and the items are uniform. It is not necessary to consider the difference in dry shrinkage and wet expansion in different directions due to temperature changes and humidity changes;
7. Plate fixing nails, excellent expansion and expansion capacity;
8. Small thickness tolerance and high utilization rate;
9. Material Name: Hardware Accessories
1. Metal parts and various springs and other accessories are treated with anti-rust, no rust;
2. The hardware fittings are installed tightly and firmly;
3. There is no tilting of the spring, no loose spring;
4. The metal foot has good stability and the unevenness of the ground is ≤
X. Material Name: Metal frame
1. Special steel pipe profiles for stainless steel pipes, through coning, steel arc bending, zigzag, modeling into a frame;
2. The surface treatment is polished, sandblasted, phosphatized, painted or protected by electroplating;
XI. Material name; non-woven fabric
1. High toughness, good ventilation, strong wear resistance, suitable hardness and hardness, uniform thickness;
2. Acid, alkali, non-toxic, free of insects, water, easy to wash, and environmentally friendly.
12. Material Name: Imitation leather, xipi
Common color models: see swatches
Test standard: QB/T1327-1991
1. Thickness: 0.7
2. Width: ≥
3. Length: 50Y/volume, limit deviation: ±
4. Appearance requirements (excellent products):
1 pattern and color difference: the pattern is clear, the depth is the same, no color difference;
2 Blocks and black bubbles are not allowed;
3 penetrating mesh and semi-permeable mesh are not allowed;
4 does not allow edge trapping;
5 color points and dark marks are not allowed;
6 Oil, stains and stains are not allowed;
7 cloth joints are not allowed;
8 or more defects, each time a place appears, should be placed
5. Physical and chemical properties:
1 tensile load (N): warp direction ≥ 110; latitude ≥ 80;
2 elongation at break (%): warp direction ≥ 30; latitude ≥ 130;
3 tear load (N): warp direction ≥ 12; latitude ≥ 10;
4 peeling load (N): ≥12;
5 surface color fastness (level): ≥ 4;
6 cold resistance:
7 aging performance:
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