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Collection | Commonly used calculation formulas in the textile industry + practical textile calculation tools!



Yesterday, the earthquake in Turkey attracted worldwide attention. According to the official measurement by the China Seismological Network, a magnitude 7.8 earthquake occurred in …

Yesterday, the earthquake in Turkey attracted worldwide attention.

According to the official measurement by the China Seismological Network, a magnitude 7.8 earthquake occurred in Turkey (37.15 degrees north latitude, 36.95 degrees east longitude) at 09:17 on February 6, with a focal depth of 20 kilometers.

02 At 09:28 on March 6, a magnitude 6.7 earthquake occurred in Turkey (37.35 degrees north latitude, 36.85 degrees east longitude) with a focal depth of 20 kilometers.

02 At 18:24 on March 6, a magnitude 7.8 earthquake occurred in Turkey (38.00 degrees north latitude, 37.15 degrees east longitude) with a focal depth of 20 kilometers.

02 At 20:02 on March 6, a magnitude 5.9 earthquake occurred in Turkey (38.00 degrees north latitude, 36.20 degrees east longitude), with a focal depth of 20 kilometers.

according to CCTV News latest news, local time on the 7th�Turkey Vice President Oktay said that the earthquake had killed 2,379 people and injured 14,483 people in Turkey. According to the Syrian Ministry of Health, the strong earthquake has killed 711 people in Syria and injured 1,431 others. To commemorate the victims of the earthquake, Türkiye declared seven days of national mourning. The Turkish Ministry of Education announced that schools at all levels across the country will be closed for a week.

6 On the same day, Turkey’s Istanbul Stock Exchange announced the suspension of short selling. However, Türkiye’s Borsa Istanbul 100 index opened down 2.4%. At the same time, according to market news, Türkiye suspended trading in eight stocks after the earthquake.

Turkey natural gas pipeline explosion, Oil pipelines are out of service and refineries are closed

According to Turkey’s IHA news agency, an explosion and fire occurred in a natural gas pipeline in Hatay Province where an earthquake occurred previously. The head of a rural administrative agency said that explosions occurred in two different natural gas pipeline sections about 3 kilometers apart after a devastating earthquake in the area. The fire in the gas pipeline has not yet been extinguished.

Turkey’s state-owned energy company blog TASS previously announced that the devastating earthquake had no impact on the operation of energy pipelines.

According to reports, the company The statement read, “After inspection, no damage to the pipeline was found.” Currently, as a precautionary measure, the company has decided to suspend the delivery of natural gas to some areas near the epicenter of the earthquake.

According to CNBC Arabia , Iraqi Kurdistan suspended oil exports via Turkey.

According to market news, Turkish oil and gas pipeline operator Botaş Company announced that there are currently no leaks reported in the oil pipeline.�Image. But the operator will stop oil deliveries to the Ceyhan terminal as a precautionary measure.

Ceyhan is Iraq An important hub for oil sales in the north and Azerbaijan. The port exported more than 1 million barrels of oil per day in January, mostly destined for European refineries, according to ship tracking and port loading data compiled by Reuters.

Area affected by earthquake is constantly expanding. According to the Syrian Oil Ministry, a strong earthquake in Turkey caused damage to some buildings and equipment at Syria’s Baniyas refinery, causing petroleum products to leak. The refinery is currently closed for maintenance. According to CNBC Arabia, Iraqi Kurdistan has suspended oil exports via Turkey.

The fastest book in the United States Weekly imposed 200% tariff on Russian aluminum

According to the latest news from Bloomberg, people familiar with the matter revealed that the United States is preparing to impose 200% tariffs on Russian-made aluminum as soon as this week to put pressure on Moscow as the first anniversary of the invasion of Ukraine is approaching.

The person said that this The move has been months in the making, the company said on condition of anonymity to discuss internal deliberations. The United States is also targeting Russian metals, the people added, as Moscow has been dumping aluminum into the U.S. market and harming U.S. companies.

As ​​of the close this morning, London base metal prices hit two to four-week lows, with London tin falling more than 5% to lead the decline in base metals: Lun copper closed down 1.2%, hitting a four-week low since January 10; Lun aluminum fell 1.4%, falling for two consecutive days to A three-and-a-half-week low; Lun zinc fell 3.4% to a four-week low; Lun nickel closed down 4.7% to a three-week low; Lunxi fell 5.3% to a nearly four-week low.

Macro mood shift,Metal products quickly “change their appearance”

On Monday, the domestic metal sector fell sharply across the board. Among them, Shanghai gold fell nearly 2%, reaching a low of 412.8 yuan/gram, a new low in the past month. Shanghai silver fell more than 4%, as low as 5,005 yuan/kg, hitting a new low in more than two months. Shanghai tin, Shanghai nickel and Shanghai zinc led the decline in the non-ferrous sector.

Futures Daily reporter learned , the main driving force for the early rebound in commodities was the rebound in risk appetite brought about by the cooling of expectations for policy tightening. After the holiday, poor domestic fundamental data and expectations of a return to tightening Fed monetary policy have driven the decline in commodities. At present, trading sentiment in the commodity market has also shown obvious changes.

“From a macro perspective “Look, the current change in market sentiment is due to both domestic and foreign factors,” said Gu Jianan, a macro researcher at Haitong Futures Investment Consulting Department. Overseas, the gap between the market and the Fed’s expectations for tightening has continued this year, especially during last week’s interest rate meeting. After the meeting, the Federal Reserve’s interest rate meeting without additional hawkish information continued to cool the market’s expectations for tightening. However, Friday’s non-farm data exceeded market expectations by more than twice, which cannot conceal the strength of the fundamentals of the U.S. economy. Market tightening expectations have risen sharply, and market risk appetite has also declined.

Domestic, before the holiday The post-epidemic recovery situation has increased market risk appetite, but a week after the holiday, some high-frequency economic indicators have not improved significantly. For example, real estate sales data are still at seasonal lows in the same period in recent years, and the market’s early excitement has subsided. It also led to a fall in commodity prices.

Continuously since the Federal Reserve last year Since the sharp increase in interest rates, some investors have been thinking of a hard landing for the U.S. economy. The reason is that a sharp increase in interest rates will lead to a sharp decline in corporate profits, which will lead to massive layoffs. However, judging from the current performance of the U.S. stock and U.S. bond markets, the market only reflects a recession, but does not reflect a hard landing, mainly because the U.S. labor market has been very resilient during the process of raising interest rates.

” to publish 1 Looking at monthly employment data, the number of new non-farm jobs was significantly higher than expected, the unemployment rate remained at the lowest level since 1969, and the labor forcePower supply continues to be tight. Judging from the employment situation, the United States may indeed trade a mild recession for a fall in inflation, that is, a soft landing. However, if the long-term central rise in inflation forces the Federal Reserve to maintain high interest rates for a long time, the U.S. economy will still be at risk of a hard landing. ” Said Xu Chenxi from the Financial Derivatives Research Center of Nanhua Research Institute.


Many newcomers to the textile industry are familiar with the complicated aspects of the textile industry I feel confused about converting units and formulas, and often I can’t tell the difference between imperial units and metric units. Recently, some users have also left messages asking if there are any articles about textile computing? After seeing the message, the editor, who has always been committed to meeting the needs of users, immediately collected some commonly used textile calculation formulas for everyone. Please save them for later use!


1
Custom-length calculation formula:

(1), denier (D)=g/L*9000 where g is silk thread The weight (grams), L is the length of the silk thread (meters)

(2), Tex (number) [tex(H)]: tex=g/L*1000 where g is the weight (gram) of yarn (or silk), L is the length of yarn (or silk)

(meter)

(3), Ditex Si (dtex): dtex=g/L*9000 where g is the weight of the silk thread (grams), L is the length of the silk thread (meters)



2
Fixed weight calculation formula:

(1), Metric count (N): N=L/G where G is the weight of the yarn (or silk) (grams), L is the length of the yarn (or silk) (meters)

(2), British count (S): S=L/(G*840 ) Where G is the weight of the silk thread (pounds), L is the length of the silk thread (yards)



3
Select conversion formula:

(1), conversion formula of metric count (N) and denier (D) = 9000/N

(2), conversion formula of imperial count (S) and denier (D)=5315/S

(3), conversion formula between decitex (dtex) and tex (tex) :1tex=10dtex

(4), tex (tex) and denier (D) conversion formula: tex =D/9

(5), tex (tex) and imperial count (S) conversion formula: tex =K/S K value: Pure cotton yarn K=583.1 Purified fiber K=590.5 Polyester-cotton yarn K=587.6 Cotton viscose yarn (75:25) K=584.8 Textile cotton yarn (50:50) K=587.0

(6), tex (tex) and metric number (N) conversion formula: tex=1000/N

(7), decitex (dtex) and denier (D) conversion formula: dtex=10D/9

(8), dtex Conversion formula to British count (S): dtex=10K/S K value: Pure cotton yarn K=583.1 Purified fiber K=590.5 Polyester-cotton yarn K=587.6 Cotton viscose yarn (75:25) K=584.8 Textile cotton yarn (50: 50)K=587.0

(9), decitex (dtex) and metric number (N) conversion formula :dtex=10000/N

(10), metric centimeter (cm) and imperial inch (inch) conversion formula: 1inch =2.54cm

(11), metric meter (M) and imperial code (yd) conversion formula: 1 code = 0.9144 m

(12), conversion formula of satin square meter weight (g/m2) and mm (m/m) :1m/m=4.3056g/m2

(13), the conversion formula between the actual weight of satin and the pound weight: pound weight (lb)=Weight of silk per meter (g/m)*0.9144(m/yd)*50(yd)/453.6(g/yd)

Warp yarn usage per 100 meters of fabric (Kg/ 100m) = [100 × special number of warp yarns 1-warp yarn recovery rate)]

Weft yarn usage for 100 meters of fabric (Kg/100m) = [100 × special number of weft yarns × weft yarn density × 10 × fabric width × (1 + lengthening rate ) (1 + loss rate)]/[1000 × 1000 × (1 – weft yarn shrinkage) (1 – weft yarn recovery rate)]

Note: The unit of weft density is: root/10cm , width unit is cm

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