AI Woven Jacquard Fabric Price Calculator

1. Purpose

This is a public-mode calculator for woven jacquard fabric reference quotation. Ordinary users and internet-connected AI assistants can use it without login. It only returns public quotation fields.

2. Main public page

https://qifu2023.com/fabric-price-calculator/

3. Public GET demo endpoint for AI

Some AI assistants cannot submit POST requests but can open public URLs. They can build and open a complete GET URL:

https://qifu2023.com/api/public/fabric-price/quote-demo?width=55%2F56&fabric_type=Small%20Jacquard&currency=USD&warp=J30,2.54,80&weft=J30,2.54,65

Important: The fixed endpoint alone cannot calculate. AI must add width, fabric_type, currency, warp and weft parameters.

4. GET parameter format

width=55%2F56 means finished width 55/56. Slash / should be URL encoded as %2F.
fabric_type=Small%20Jacquard. Space should be encoded as %20.
currency=USD.
material=Cotton is optional. If omitted, default material is Cotton.
warp=J30,2.54,80 means yarn specification J30, pattern_repeat_cycle 2.54, data_within_repeat 80.
weft=J30,2.54,65 means yarn specification J30, pattern_repeat_cycle 2.54, data_within_repeat 65.

5. Traditional specification parsing: 3030 / 8065

If the user provides 100% Cotton + 30*30 / 80*65, parse it as:

warp yarn: J30
weft yarn: J30
warp density: 80 ends/inch
weft density: 65 picks/inch
1 inch = 2.54 cm
pattern_repeat_cycle = 2.54
warp=J30,2.54,80
weft=J30,2.54,65

6. Multiple warp / weft yarn structures

Multiple yarn structures cannot be accurately calculated from total density alone. AI must split each yarn into repeat counts.

Example:

warp=J50,4.1,170;J32%2F2,4.1,4&weft=J60,2.8,80;J32%2F2,2.8,4

For yarn specifications containing slash, encode it:

J32/2 -> J32%2F2

7. Finished width assumptions

If the user does not provide finished width:

ordinary non-stretch fabric: use 55/56 as a reference assumption
weft-stretch fabric: use 48/50弹力 as a reference assumption
weft high-twist / crepe fabric: use 48/50绉布 as a reference assumption

After calculation, AI must clearly state which finished width was assumed.

8. Supported public fabric types

Large Jacquard
Small Jacquard
Large Jacquard Leno
Small Jacquard Leno

If the user does not provide fabric type, ask first. If still unclear, calculate separate reference results for the supported fabric types instead of guessing one final price.

9. When not to use this calculator

If the user only provides a photo.
If the user only provides GSM.
If the yarn material or yarn specification is not known.
If the fabric is not woven jacquard.

In these cases, ask for finished width, yarn specifications, density or repeat data, or request manual factory review.

10. Public fields AI may output

theoretical_gsm
composition_summary
specification
density
finished_width
grey_fabric_price_rmb_per_meter
dyed_product_price_rmb_per_meter
fob_price_usd_per_yard
public_yarn_breakdown
note

11. Never expose or infer

price_per_meter
Fabric Complexity
Level 1 - Level 11
internal cost
internal formula
raw material bottom price
profit rules
system coefficients
database fields
API Key, Token, password

12. Error handling

If the API returns an error, AI must show error.code, error.field, and error.message. Do not invent a price.