CN86207783U - Paper-holder pencil - Google Patents

Abstract

The utility model relates to a paper-holder pencil. The output of and the consumption of a wood-holder pencil are first in all pens since the wood-holder pencil was born during three hundred years. The producing material of the wood-holder pencil is in more shortage because of wood being shortage and wood use enlarging. The utility model is the paper-holder pencil which is produced by using wastepaper to replace the wood. The material comprises paper and a special prepared adhesive. Every ten thousand pencil holders approximately consume 30 to 40 kg waste newspaper so that 0.3 to 0.5 cubic meter wood with good quality is replaced, and more ten channel processes and a machine tool which are required in the process of producing the wood-holder pencil are saved. The wood-holder pencil can not appear the problems of bias pistil, tackless, hidden and open plate, etc. The appearance and use performance of the paper-holder pencil are same with the wood-holder pencil, and the fabricating cost of the paper-holder pencil is lower than the wood-holder pencil by 10% to 20%.

Description

Paper-holder pencil

The utility model is a kind of paper pencil

For a long time, the domestic and international pencil of producing, having more than 90 percent is to be the Wood-bar pencil of penholder raw material with timber.

The process of traditional production Wood-bar pencil is called " Kang Tuofa ", the history in existing more than 300 year.Because Wood-bar pencil is easy to use, inexpensive material benefit, widely people accept, and the output of pencil also increases rapidly year by year.But simultaneously also just because of its raw material is to adopt timber, so also there is following shortcoming inevitably:

1. the operation of producing Wood-bar pencil is various.

Producing Wood-bar pencil both at home and abroad all is to adopt traditional " Kang Tuofa " technology.This technology from log begin to pass through saw lumber,

Plate, be cut into the long juggle of penholder, in hermetically sealed can the pressurized, heated boiling soften, be cut into five millimeters thick thin slice, drying, roasting plate, channeling, dress stamen, gummed, plane bar, sanding, paint, stamp, beat ten multiple working procedures such as leather point, and the per pass operation all has the little operation of one " selection ".

2. " Kang Tuofa " production technology must be equipped with facility such as being worth nearly 1,000,000 yuan log band saw machine, circular sawing machine, Sealed steam cooking jar, slicer, roasting plate machine, keyway planer, laminator, plane bar machine.

3. selection requires high, wasteful, timber source shortage.

Wood-bar pencil selects for use timber strict: require no knot, do not have small holes caused by worms, do not have crooked texture, growth ring does not have the hard zone of later wood and not gummifer timber.And material requires thin and spare, and is neither too hard, nor too soft, slightly fragility, gummed easily, good, the easy drying of paint performance, be out of shape for a short time, only reach the timber of this requirement, just can produce the high-quality pencil.

In fact, the timber of spontaneous growth, difficulty reaches this requirement, also is not that all timber all is suitable for doing the pencil shaft material.High-quality pencil shaft material in the world comprises that the linden in America pencil cedar, African pencil cedar and China northeast is all reducing year by year, and material descends.Timber in short supply directly has influence on output and quality that Wood-bar pencil is produced, threatens the cost price of Wood-bar pencil.

At present, China produces more than 30 hundred million of Wood-bar pencils per year.Annual consumption high-quality timber ten ten thousand steres that need are linden more than 90 percent, minority Alniphyllum fortunei wood.The high-quality timber production pencil shaft of each cubic metre, its utilization rate only is 25～28%, and waste reaches about 75%.This timber is again the main raw material(s) of producing products such as glued board, furniture, match.This just exists one to fight for the problem of raw material with other products.Two during the last ten years, and the expert of wood industry and pencil industry once found tens kinds of new seeds that can be used as the pencil shaft material through studying exploitation for a long period of time.But still because these new seeds accumulations are little, and upward economic benefit is bigger to be used in other production.Therefore, the source of pencil shaft timber is still a problem demanding prompt solution.

Because timber is in short supply, people have done to explore widely to non-wooden material's system pencil shaft, as the Bayer AG of West Germany, the Ba Luoer company of the U.S. and the Supreme Being people company of Japan etc.

Known non-Wood-bar pencil has propelling pencil and plastic pencil (also claiming the polymerization bar).Though propelling pencil has with the metal replacing wood, appearance is many, advantage such as need not cut, make things convenient for, but still exist the price height, the nib thickness can not be adjusted, also do not accepted extensively by people.

Advantages such as known plastic pencil with the plastics replacing wood, has the outward appearance of Wood-bar pencil, and easy at normal temperatures cutting and cutting face are smooth.But also exist pencil price height, the penholder soft durometer is subject to the influence of cold and hot temperature, easily produces static, easily pollution clothes during cutting.

The purpose of this utility model is that a kind of Wood-bar pencil that can keep of development is easy to use, economical and practical advantage, has propelling pencil, plastic pencil advantage again without timber, both can remedy wood pencil and expend timber, the shortcoming of complex procedures, the deficiency that can remove propelling pencil, plastic pencil price height again from.

The utility model is a kind of paper pencil with the paper replacing wood.The outward appearance almost completely the same (Fig. 1) of paper pencil and Wood-bar pencil, it can mix aluminium circle and rubber tip, also can be unworthy of rubber tip.The paper line of the paster in its cross section is (Fig. 2) all twist.

The paper pencil of the utility model indication is made up of the adhesive that printing paper or other writing papers and pollopas, filler, curing agent are formed.

The molar ratio of the urea of the pollopas of the utility model indication and formaldehyde is 1:1.1～1.5.In order to guarantee that free formaldehyde is no more than 0.8% to the people's nonhazardous with pencil, temperature is between 80 ℃～95 ℃ during its reaction.

The filler of the utility model indication can be plant amylum, wood powder or red mud or carbon calcium powder.The indication curing agent can be ammonium chloride or oxalic acid or formic acid.

The ratio of the pollopas of the utility model indication, filler, curing agent is respectively 1:0.3～0.6:0.02～0.005.

The amount ratio of paper of the present utility model and adhesive is 1:0.008～0.016, after this material prepares, but but also artificial drying of air dry.

The advantage of paper pencil is:

1. without timber, save the forest reserves, preserve the ecological environment.

2. material source is extensive, reliable, price is low.Write paper because the employed base material of paper pencil is printing paper or other, be advisable with old and useless newspaper.Per ten thousand penholders consume 38～40 kilograms on disregard message paper approximately, can replace 0.3～0.5 cubic metre in high-quality timber.At present, the old and useless newspaper of domestic publication can be produced more than 40 hundred million pencils as long as reclaim 3%.

3. compare with timber, paper pole stock matter is even, moisture resistance fire-resistant, has possessed certain intensity that pencil shaft requires.Being suitable for most volume cuts.And can be according to people's custom hobby, arbitrarily decorate and make it to send different fragrance.And paper pencil can not occur Wood-bar pencil inclined to one side stamen, come unglued, problem such as negative and positive plate, and outward appearance and serviceability and Wood-bar pencil are as good as, and meet people's use habit.

4. compare with propelling pencil, plastic pencil, the most significant advantage that paper pencil has is cheap.Also hang down 10～20% than Wood-bar pencil cost.The advantage that also have adjustable on demand lump-sum point thickness in addition, cut no static, the penholder soft durometer is not influenced by temperature.

5. the paper pencil production technology is simple, and working condition is less demanding, is example with the rod pen just, and it has just saved from saw lumber to digging tens procedures such as bar, replaces simple procedures such as gluing, roll bar.The production facility of ten multiple working procedures have also been saved simultaneously.Only need be with original sander, painting machine, printing machine, make leather point machine etc. and get final product.

Claims (2)

1, a kind of pencil is characterized in that this pencil is made up of the pencil shaft that the plumbous heart and multilayer paster make tubular.

2, pencil according to claim 1, the paster line that it is characterized in that the end face of pencil or cross section twist.

Images